LHR - SYD

£370 Find Cheap Flights from London Heathrow Airport to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Sydney departing on 15/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Sydney.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Sydney.
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Cheap Flight Deals from Heathrow to Kingsford Smith (LHR-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Kingsford Smith that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Heathrow to Sydney

Recommended return deals departing in the coming months from the most popular airlines that fly from Heathrow to Sydney.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
22:00 - 20:20LHR-SYD
35h 20m1 stop
11:05 - 19:05SYD-LHR
42h 00m1 stop
£513China Southern
Find Deal
Wed, 19 Mar - Tue, 1 Apr
22:00 - 20:20LHR-SYD
35h 20m1 stop
11:05 - 19:05SYD-LHR
42h 00m1 stop
£544China Southern
Find Deal
Wed, 19 Mar - Tue, 1 Apr
20:25 - 15:30LHR-SYD
32h 05m1 stop
20:40 - 15:55SYD-LHR
30h 15m1 stop
£567Air China
Find Deal
Sun, 2 Mar - Tue, 18 Mar
17:40 - 15:30LHR-SYD
34h 50m1 stop
20:40 - 17:50SYD-LHR
32h 10m1 stop
£586Air China
Find Deal
Mon, 24 Feb - Sun, 9 Mar
21:00 - 13:35LHR-SYD
29h 35m1 stop
12:00 - 13:55SYD-LHR
36h 55m1 stop
£626China Eastern
Find Deal
Sun, 16 Mar - Thu, 20 Mar
21:00 - 10:00LHR-SYD
26h 00m1 stop
12:00 - 13:55SYD-LHR
36h 55m1 stop
£636China Eastern
Find Deal
Wed, 5 Mar - Tue, 18 Mar
21:00 - 14:55LHR-SYD
54h 55m2 stops
21:00 - 17:35SYD-LHR
31h 35m2 stops
£714Hainan Airlines
Find Deal
Mon, 24 Feb - Thu, 27 Feb
21:00 - 14:55LHR-SYD
54h 55m2 stops
21:00 - 17:35SYD-LHR
31h 35m1 stop
£730Hainan Airlines
Find Deal
Mon, 24 Feb - Thu, 27 Feb
22:35 - 19:00LHR-SYD
33h 25m1 stop
21:05 - 16:40SYD-LHR
28h 35m1 stop
£756Turkish Airlines
Find Deal
Fri, 28 Feb - Tue, 6 May
06:35 - 19:00LHR-SYD
25h 25m1 stop
21:00 - 14:55SYD-LHR
28h 55m1 stop
£776Turkish Airlines
Find Deal
Thu, 20 Feb - Thu, 27 Feb

Flights from Heathrow to Sydney - Travel Insights & Trends

Get data-powered insights and trends into flights from Heathrow to Sydney to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from London Heathrow Airport to Sydney?

The average price of all round-trip flights from London Heathrow Airport to Sydney clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from London Heathrow Airport to Sydney, look for departures on Mondays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Sydney, Sunday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from London Heathrow Airport to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London Heathrow Airport to Sydney is March, where tickets cost £813 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,448 and £1,422 respectively.

Can I save money by flying with a stopover from London Heathrow Airport to Sydney?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £2,764 on average.

How far in advance should I book a flight from London Heathrow Airport to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from London Heathrow Airport to Sydney, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to Sydney

Low season

June

High season

December

Cheapest flight

£370
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (31% more expensive on average)
Flight from London Heathrow Airport to Sydney

When to book flights from Heathrow to Sydney

Are your dates flexible? Find out the best times to travel from Heathrow to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Sydney flights

  • Are there direct flights between London Heathrow Airport and Sydney Airport?

    Unfortunately, there are no direct flights between London and Sydney; however, there are multiple efficient options you can take that require a transfer during the journey. Depending on which airline you fly with, you will make a transfer usually at their airport hub. For instance, a flight with Emirates would require one change at Dubai International Airport before you continue your onwards journey.

  • How can I save time at Heathrow airport?

    Heathrow Airport is a busy airport and it can take some time to get through the security and baggage checks. One way to speed this up is to pre-book with Fast Track Security. Available at all terminals at Heathrow, it costs about £12.50 and needs to be booked 24h in advance. It can save you considerable time, especially if you are in a rush.

  • Can I stay in an LHR airport hotel the night before my flight?

    Should you not want to be in a rush the day of your flight, one great option is to stay at an airport hotel. Heathrow has many hotels catering for various terminals. So, if for example you’re leaving from Terminal 2 with Singapore Airlines to Sydney, you could opt for Aerotel London Heathrow, which is only a few minutes away from the terminal building.

  • What are the best ways to get from Sydney Airport to the centre of the city?

    It’s easy to get from Sydney Airport to Sydney city centre. Upon arrival you have two train options, you can jump on the T8 South Line train, which takes approximately 13min and leaves every 10min or so. This can be found at the northern end of the arrivals hall or hop on the AirLink and be in Sydney in about 15min. The train also connects the terminals at Sydney Airport, so you can board wherever you land. Tickets cost around A$ 20 and you can use an Opal top-up card, purchasable at the station, or your credit card to pay the fare. Alternatively, you can get either the number 400 or 420 bus, which leave regularly from outside the terminals. Of course, you could get a taxi, but these can be quite expensive.

  • What kind of lounges can I enjoy at Heathrow Airport?

    There are various open-access lounges at Heathrow Airport where you can wait for your flight in style. The House Lounge is located in Terminal 4, where you also find the Plaza Premium Lounge. In Terminal 3, you find the No1 Lounges.

  • Can I smoke at Heathrow Airport?

    Heathrow Airport is a smoke-free airport, but there are some designated smoking areas outside the terminal buildings. The smoke ban includes e-cigarettes. Passengers should note that smoking beyond the security point is not possible anywhere.

  • Is there a hotel at Heathrow Airport?

    If you have booked an early flight and want to remain close to the airport, you can stay in a range of airport hotels close to the terminal buildings. Hotels include the Holiday Inn Heathrow Airport, DoubleTree by Hilton, and the Mercure London Heathrow, to name some.

  • Are there internationally compatible charging stations at Heathrow Airport?

    Throughout Heathrow Airport, you find charging stations for phones and laptops. They are compatible with UK and European plug outlets, but also have a USB port for international devices.

  • What visa do I need when I arrive at Sydney Airport?

    British citizens need a visa for Australia; otherwise, you will be denied entry upon arrival. These can be obtained quickly and easily online before your flight. In addition, your passport must be valid for the entirety of your planned stay.

  • Which hotels are there at Sydney Airport?

    If you arrive late at Sydney Airport or if you have a connecting flight, you might want to stay at an airport hotel. For instance, Aerotel Sydney (Arrivals B, International Terminal 1) is only a short walk from the airport terminal upon landing.

  • How can I reduce my carbon emissions by taking a specific flight from Heathrow to Sydney?

    As the flight from London to Sydney is long, you may want to lower the emissions that your flight contributes. For example, American Airlines completes this route emitting around 67% less carbon dioxide than some other airlines. This means that rather than emitting roughly 4,254 kg CO2 per passenger, it releases only about 1,364 kg CO2.

  • Which airlines provide first-class seating on this route?

    With the flight from London to Sydney taking the best part of a day, you might want to upgrade your stay to a more comfortable cabin class. American Airlines is an example of an airline with this superior cabin class, which includes checked luggage, cabin luggage and a fully reclining seat.

  • What is the cheapest flight from London Heathrow Airport to Sydney?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Sydney was £452 for a one-way ticket and £627 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Sydney?

    London Heathrow Airport airport is called London Heathrow and the only airport in Sydney is Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from London Heathrow Airport to Sydney?

    The Airbus A380-800 is the aircraft model that flies most regularly on the London Heathrow Airport to Sydney flight route.

  • Which airline alliances offer flights from London Heathrow Airport to Sydney?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between London Heathrow Airport and Sydney, with Star Alliance being the most commonly used for this route.

  • What is the most popular stopover when flying to Sydney from London Heathrow Airport?

    Singapore is the most popular stopover city among KAYAK users travelling from London Heathrow Airport to Sydney.

  • Which is the best airline for flights from London to Sydney, Singapore Airlines or China Southern?

    The two airlines most popular with KAYAK users for flights from London to Sydney are Singapore Airlines and China Southern. With an average price for the route of £1,132 and an overall rating of 8.1, Singapore Airlines is the most popular choice. China Southern is also a great choice for the route, with an average price of £648 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from London Heathrow Airport to Sydney

  • Looking for a cheap flight from Sydney to London Heathrow Airport? 25% of our users found flights on this route for £1,024 or less one-way and £1,108 or less round-trip.
  • Travellers who are prepared to pay a little more can enjoy a direct flight connection from London Heathrow International Airport (LHR) to Sydney Kingsford Smith International Airport (SYD). British Airways and Qantas Airways are among the airlines that offer direct flights between the two big cities.
  • London Heathrow has a lot in store for families waiting for their flight from London to Sydney. There are various stay & play areas dotted around the terminals, and a range of eateries located at Heathrow have free meal deals for children. Children also travel for free on the Heathrow Express, operating between the city centre and the airport.
  • If you have some pound notes left and want to change them into Australian dollars, you can do so conveniently and for a good rate at the currency exchange offices in each terminal at Heathrow Airport. You have a choice between Travelex, Western Union, and Xpress Money Services, which all offer competitive conversions.
  • In the public food court at Sydney Airport, you find a range of eateries that are open until 22:00, so you can enjoy quick snack upon arrival. The restaurants that are open late include Hungry Jack’s if you fancy burgers, Mad Mex, and Beqaa that serves Lebanese food.
  • If you need to go to London Heathrow and don’t want to worry about parking, simply hop on the Piccadilly underground line, which serves the Heathrow terminals. It is cheaper than the Heathrow Express, costing approximately £ 6 (A$ 12) for a single one-way ticket and taking about 45–60min from Central London, as opposed to the £ 22 (A$ 42) and 15min journey for the Heathrow Express.
  • Do you not fancy plane meals for your flight from London to Sydney? At Heathrow Airport, you can have your in-flight picnic assembled to enjoy a scrumptious treat during your flight. A variety of restaurants participate and you can put together your preferred foods.
  • It’s easy to travel to London Heathrow Airport (LHR) for your departure. From the city centre, you can get the Piccadilly Line or Heathrow Express. Or if travelling by car, you can exit the M25 via junction 14 or 15.
  • If you live in the south of the UK, you may find it easier to depart from London Gatwick Airport (LGW), which also has flights to Sydney Airport. These tend to be a similar flight duration and cost, so it could be more convenient for you.
  • With Sydney Airport (SYD) being only about a 30min drive from Campbelltown and around a 1h drive from Wollongong, it is a great airport if you want to continue your journey to other destinations in New South Wales, Australia.
  • Before your flight, why not relax at one of the luxury lounges that Heathrow Airport offers. No matter which airline you are flying with, you can choose from a range of lounges, such as Aspire lounge, which offers shower facilities, complimentary drinks and Wi-Fi for around £25 per person.
  • If you need wheelchair assistance at London Heathrow Airport, then call the Assistance Host Area in the terminal you are leaving from 48h prior to your flight. Once you have arrived at the airport, you will locate the host areas in the check-in zones of each terminal, where you’ll receive assistance all the way through to boarding.
  • If you want flexibility with your journey once you land at Sydney Airport (SYD), get a hire car from the airport. You will find a range of car hire agencies, such as SIXT, in the terminal arrivals hall. Alternatively, you can get a free shuttle from outside the terminal to agencies such as Green Motion.
  • Not only does London Heathrow (LHR) serve the city of London, but there is also a range of nearby cities that are only a short drive from the terminal. For instance, you can drive from Reading to Heathrow in about 40min, from Oxford in about 1h 10min and from Swindon in approximately 1h 15min.
See more tips

Top 5 airlines serving from Heathrow to Sydney

 
See real verified KAYAK customer reviews for airlines flying from London to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Singapore AirlinesOverall score based on 1327 reviews
8.0Entertainment
7.7Food
7.9Comfort
8.6Crew
8.2Boarding
Airline reviews

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

6.0 Goodstuart, Jan 2025BNE - SIN
Read more Singapore Airlines reviews

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

It was very good experience on board to Sydney with SQ.

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

Great airline. Excellent service, good food & lots of TV movies/shows to choose from.

Really enjoyed the flight. Our flight attendant on the way back SIN-LAX was exceptional I didn’t get her name but she was so kind and went above and beyond to make sure I was comfortable. I had a bit of a panic attack and she checked on me a few times to make sure I was ok. Really appreciated her attention and service. Thank u

Crews were very caring and polite. Washroom was surprisingly clean. Overall experience was good , only food choices was very limited. Thanks

Flight was delayed by baggage loading onto the plane. This was attributed to "inclement weather" (some moderate rain) which could be said to be beyond the airline's control, but the problematic part was that the plane was boarded and doors shut so that passengers sat in a cramped plane with rising temperature (full flight) for an hour. The airline was aware of the status of baggage loading, they could have deferred boarding to keep passengers comfortable.

Service excellent would chose Singapore airlines as my first choice

The staff were amazing and very kind. The seats recline a little too far back and are up close when sitting behind.

The flight was delayed for 30 mins. The overall experience was good.

Highly impressive. On time. Smooth and fast boarding and disembarkment. Really great service

Overall, it was ok. However, the food was very sub-par.

When comes to Taiwan airlines China airlines is the best rest are pure trash

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Meal options for vegetarians can be provided… Nothing was offered for me for dinner.. crew just said no vegetarian option available and did even bother to provide any alternatives or something to eat.

Cathay has a great reputation, though it's baseline economy seating is nothing to write home about (and SE Asia flight passengers sometime lack 'routine stateside' etiquette). On the other hand, food was great, flight attendants were nice, and price was very good~

Not enough food for everyone. . Always run out of food when we ask

Customer service was exceptional. I heard it wasn’t a great airline, my opinion has changed after flying with them

My sister and I were booked on flight CX844 from Hong Kong to New York, following a layover from Hangzhou. The scheduled layover was already over 7 hours, and the flight to New York was set to depart at 2:00 AM. At 11:00 PM, I was informed that the flight was delayed until 6:45 AM, significantly extending an already lengthy layover. I spoke with a representative to inquire about rescheduling or hotel accommodation, but she rudely insisted that company policy only offered a $150 food voucher, which was unhelpful as I had already eaten and most places were closing. She refused any alternative support or access to the Cathay Pacific lounge to make my wait more bearable. As a loyal Cathay Pacific customer, flying with the airline every year, I was deeply frustrated not only by the delay but by the poor service and unprofessional attitude I encountered. I believe this situation could have been handled with more care and flexibility.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

Not good - chair back could not move back for premium economy. Not worth the price

The back of the chair - premium economy could not move back - not worth the price

It was okay. Boarding the staff made you feel rushed like we were late or something

It was great. The staff were so nice and helpful the food was great and they always made sure I was okay. As a foreigner I was worried about the language barrier but it was absolutely no issues. I highly recommend

Crew: Everybody was polite. People just need to get efficient and less reworking things. Entertainment: Could have move movies and games. The “music” section is a joke, only ONE available. Food: The food provided on the flights boarding in china needs a serious reworking. Too much oil, bad for your stomach, tastes too artificial and the eggs were a giant mass of green dough.

We were diverted to Chengdu, because of bad weather and finally made it to Chong King about 7 hours later

No wheelchair service at all ( I did request that service and also purchased the priority assistant bundle) , what a waste of money

Never got the wheelchair service when my parents arrived at LA . My mom was 74 , also my dad was 84 years old, both don’t speak English. I double checked with the front desk at Phoenix airport, making sure that they will be taking care of.

Should have had business class line in immigration. Food quality suboptimal

Used to Etihad employees are very rude and unprofessional but now better than before over all is okay now

The staff were wonderful but the seats weren't very comfortable for a bigger guy like me.

we were delayed from Athens to Abu Dhabi by an hour and a half, so I had trouble connecting the flight from there to Bali. It could have been done had they waited even 15 mins. There was another lady who was in the same boat. By the time we were half way across the terminal, they have actually already issued different flights for us to go Jakarta then to Bali. Not to mention the inconvenience of waiting over 4 hrs at the airport and the subsequent inconvenience, we did not arrive to Bali till after 800pm the next day, which means I paid for the hotel for nothing when I could have been there before noon the next day! There was little explanation. It was just as well I needed some assistance getting around, otherwise the 2 of us would have been completely lost! Not going to fly with them again!

This flight was a dreamliner so I think the space was ok for the legs, but the option for food was again limited and the crew was same.

Needs better seat for business class. My seat was falling apart. Also no WiFi on that flight

Good. The food was very bad. Except for the chicken rice, rest of the dish went to trash.

In never flown this flight, because my flight coning from Barcelona was delayed.

The flight was delayed which cause me to miss my connecting flight in AbuDhsbi airport.

I did not have a good experience in both flights of Etihad. First of all, when I was booking the flight, there were two options. The first option was a cheaper flight with longer layover (9 hrs), or a more expensive flight with shorter layover (2 hrs). I booked the expensive flight with shorter layover because I wanted a more comfortable trip. A few days before the trip, Etihad informed me that the departure time of my first flight will change 7 hours earlier, leading to an 9 hour layover, without giving me another option nor reimbursing me for the extra cost. They didn’t even send me an apologetic email for this change. Regarding the flight experience, I would rate it as mediocre. This is mostly because the pilots of both flights did their best to give us the worst approach to airports that I have ever experienced. In the case of the first flight they had to aboard the landing and took off again right before touching the landing strip. The captain said that it was due to wind conditions but the second time the pilot followed the same direction as the first time to land the plane.

Good flight, awful, vindictive, vile customer services in T5 Heathrow.

Ok we did get an upgrade and the flight was delayed 45 minutes BUT without any bias. The crew were excellent, friendly, efficient and verging on exuberant, they all were so happy to do their jobs. Food excellent and the new safety video is fun to watch.

Reliable, great value, but not outstanding in any aspect. This is similar to the experience you get in most international carriers like Etihad or Delta.

Aer Lingus was the actual airline so they handled everything professionally.

Flight got diverted because of an emergency and the crew were fantastic and probably saved that passenger’s life. While in emergency landing some measures could have been taken to prevent additional delays. In general not great experience with BA. I used to fly BA years ago all the time, very disappointed by the whole experience, seats were tight, bathrooms tight.

Business class area too small and chair and equipment not comfortable .

Lost my luggage in London Was double charged for luggage

BAD!!! due to delay I missed my connection in MEX, had to pay for hotel and new flight for next morning increasing my spent for $1,000 usd

Boarding could have been better organized. The one member of staff disappeared for a while so boarding by group relied on honesty.

Good flight. Not a lot of legroom, but it was fine for a short flight.

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Everything you need to know for your flight from Heathrow to Sydney

Other airlines flying from Heathrow to Sydney

Flights from the other most popular airlines that fly from Heathrow to Sydney according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

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