SYD - KTM

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Everything you should know

Direct flights
Not available
There are currently no direct flights between Sydney and Kathmandu. You’ll need at least 1 connection.
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Top stopover airports
Cheapest • Avg £530 (return)
Shortest trip • 15h 16m (one-way)
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 13% compared to booking last minute.
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When to travel
Cheapest • 21% price drop
Most popular
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Booking Insights
Flight Deals

Cheap Flights from Sydney to Kathmandu (SYD-KTM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Kathmandu 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Kathmandu

Multiple Airlines Logo
SYD
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KTM
6050 mimulti-stop
Multiple Airlines Logo
KTM
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SYD
6050 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Sydney to Kathmandu flights

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

What is the cheapest month to fly from Sydney to Kathmandu?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Kathmandu, 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 Sydney to Kathmandu is February, where tickets cost £557 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is £920 and £875 respectively.

How far in advance should I book a flight from Sydney to Kathmandu?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Kathmandu, 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 Sydney to Kathmandu, you should book around 4 weeks before departure, which saves you about 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know - Cheap tickets from Sydney to Kathmandu

Low season

July
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (9% more expensive on average)

When to book flights from Sydney to Kathmandu

Are your dates flexible? Find out the best times to travel from Sydney to Kathmandu 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 flights from Sydney to Kathmandu

  • What special assistance is available for people with disabilities at Sydney’s Kingsford Smith Airport?

    If you have a disability, it’s best to allow extra time to head to Airport Services before your flight departs from Sydney’s Kingsford Smith Airport; go to Level 3 of the International Terminal (T1) and follow the signs for Administration. They will provide you with a sunflower lanyard that communicates to staff members you may need extra assistance. In addition to this, it’s wise to inform your travel agent or airline of any special assistance you may require as they will make arrangements for you before you arrive at the airport.

  • Are there any open access lounges at Sydney Airport?

    Sydney Airport has a number of lounges spread across Levels 1, 2 and 3 of the International Terminal (T1). If you don’t have an airline membership but do have an American Express card, you may be able to enjoy free access to American Express Lounge located on Level 1. Alternatively, Plaza Premium Lounge (on Level 2) accepts walk-ins with no airline membership required. Prices start at about A$ 37.80 per person. If you are considering either of these options, it’s worth booking online as this allows you to confirm the opening hours and availability in relation to your flight schedule.

  • Which aircraft models fly most regularly from Sydney to Kathmandu?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sydney to Kathmandu?

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

  • Which is the best airline for flights from Sydney to Kathmandu, Thai Airways or China Southern?

    The two airlines most popular with KAYAK users for flights from Sydney to Kathmandu are Thai Airways and China Southern. With an average price for the route of £873 and an overall rating of 7.9, Thai Airways is the most popular choice. China Southern is also a great choice for the route, with an average price of £570 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Sydney to Kathmandu?

    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 Sydney to Kathmandu.

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

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

  • What is the Hacker Fare option on flights from Sydney to Kathmandu?

    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 Kathmandu with an airline and back to Sydney with another airline.

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

    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 Kathmandu from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Sydney to Kathmandu

  • Your flight from Sydney to Kathmandu will depart from Terminal 1 of Kingsford Smith Airport (SYD) and arrive at Terminal 2 of Tribhuvan International Airport (KTM).
  • If you’re after a fast and easy trip to Sydney Airport from the city centre, taxis and rideshare providers usually only take around 20min, depending on traffic conditions. The trip should cost between A$ 45 and A$ 55.
  • Leaving a pet behind for your trip from Sydney to Kathmandu? Hanrob Pet Hotel is in the Kingsford Smith Airport precinct and offers both short- and long-term accommodation and care for pets.
  • Kathmandu’s Tribhuvan International Airport is the hub for both Himalaya Airlines and Nepal Airlines. It’s also the hub for smaller local airlines like Buddha Air, Yeti Air and Guna Air, which do scenic flights around Mount Everest.

Reviews of the top 4 airlines flying from Sydney to Kathmandu

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Kathmandu. 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 Sydney to Kathmandu? 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.
7.9
Thai AirwaysOverall score based on 411 reviews
8.0Boarding
7.7Comfort
8.4Crew
6.9Entertainment
7.5Food
Airline reviews

We still get drinks and a snack. Love the gift bags too.

10.0 ExcellentTsaav Stuvy, Mar 2026
BKK - UTH
Read more Thai Airways reviews

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

Could have been better. I prefer Thai airlines only but it hasnt been reliable.

Overall things were very good and orderly. The food was very good but I want able to get a second drink very easily, so that could have been better for services. The seats seemed to be lacking legroom but I'm also 6'1" so I'm used to wanting more legroom but the plane seemed smaller then others when it came to legroom. My kids all enjoyed the entertainment as did I so that was perfect!

My case was missing a wheel on arrival Heathrow and the staff were unhelpful when i tried to get some compensation stating it was not sufficient damage, i only wish that they at some point have to deal with the same situation it put me in, maybe they would change their attitude but overall it was a good flight

The aircraft was really old, the staff demotivated and the overall United airline service is horrible

Excellent service. departed on time, and arrived ahead of schedule. The whole restrictions around no food/drink is a bit weird even with Covid. Also, no mobiles and iPad use during takeoff and landing is very 2006!

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

In my return flight they couldn’t identify my ticket or boarding pass, I had to go to 3 different counters until I was able to get my boarding pass. The food was on, it was the bear minimum. They didn’t even recognise that I was a Muslim and can’t eat meat, chicken or pork. In one of the trays I believe they served me pork. The staff were very pleasant, but they need to be aware of their surroundings more carefully, one of them stuck her lower belly right into my face! I was shocked and very uncomfortable.

Wow very impressed by the quality and attentiveness of service of China Southern. Lived the blankets! Will definitely fly with them again. Despite language barriers, a few attendants know enough English to understand our rudimentary Mandarin and respond to basic questions. Although they don’t explain the beverage and meal service on the website or ticketing documents, they offered regular beverage cart and snacks during the beginning hours and end hours of the long, transoceanic flight. A full meal at the beginning and end of the flight as well, and a midflight small sandwich (dinner roll sized) but we weren’t hungry and didn’t try that one. The expectation is that every sleeps during the middle of the flight. We were on a “redeye” departure from LAX with a morning arrival in China, so I don’t know if this service pattern is the same for other flights. The domestic flight we took from Guangzhou to Harbin offered conventional refreshments and meals like a US flight service. Note that they didn’t offer diet sodas. If you like to stay hydrated, I recommend bringing plenty of your own. It is served in small cups like any other drink. You can ask for a bottle but they’re tiny - about 6 ounces.

The connection between LA and Atlanta was too much stress

The crew were kind, patient and responsive. The service was excellent, even though we travelled the cheapest economy class. We arrived at our destination 40 min early, which for a 15+ hour flight is a great bonus. The boarding seemed a bit "loose", but got us boarded on time, and the plane was off exactly @ 0:30 hrs.

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.

Food was terrible. Fish was equal to a sausage and scrumbled eggs were terribly green with a quite weird fllavour. Everybody with me hated all options. The best food was the bread with butter.

We bought an upgrade to Business Class at the airport but did not realise that it was not the regular Business Class. The 787 Dreamliner was very dated with the seats not as comfortable as other airlines and some things were almost coming off. We were then told that because it was an upgrade at the airport, we get to sit in the BC cabin but will be served economy class food. So when everyone else got served in china ware, we were given the tray you got in economy class. The wifi does not work. It only connects to watch movies (which is the same as what you find in the ICE) but the internet does not work. The cabin crew while were friendly, were not responsive. Overall, I will never fly China Southern again.

I love flying Chinese airlines in general but China Southern is probably the worst of the lot. The service is poor and food is below par.

Quality flight from start to finish. Customer service is evidently very important to this company. The staff really exceeded expectations.

Surprised that the safety briefing was only conducted in Malay language and no English despite there are foreigners on board. MH should take safety more seriously.

OK seats comfortable, easy boarding/embarking, excellent connection to domestic Malaysia flight with baggage checked through without customs. Catering especially drinks borderline ok luckily less important aspect

Did not take as cancelled 3 time so took another airline

Ok, but legspace on MH0127 from Kul to Per was too small. It was not possible to tilt my seat which I don't understand because the seat in front of my could do it. So I didn't rest on the flight. Also, the crew was probably understaffed because it took very long time to take trash after the meal. Everything very different from the flight with Malaysian Airlines from London to KL.

chaos boarding. Crew in business class seemed short staffed and lacking in attention to details initially, but did improve during flight.

Orange juice change to mineral water . Should keep the orange juice.

No recognition for one World Emerald member. Business class seat has flat bed

Flight from Shanghai to Kuala Luumpur delay byy 3.5hrs with no real explanation.

I had purchased extra leg room for all legs of the flight but due to a delay in leaving Perth I was put on another flight but with Emirates. My luggage was initially lost but later found and my suitcase was broken. I ended up losing my upgrades

Prompt and efficient boarding. New MH-awards streaming worked first time on my personal device.

There’s no comparison for new avatar of air India. Long live Air India. Amazing hospitality and ultra soft polite charming crew

The trip with Air India was better than expected starting with the check-in and the Lounge. The flight was comfortable for a 1 hour flight.

Good experience, comfortable seats. Entertainment did not work but vista wifi and entertainment worked great.

The aircraft interiors are falling apart. Felt like a waste paying for business class as it was indistinguishable from economy in any way.

Food a little spicy for me, but I’m not a vegan. I would fly Air India again.

Mediocre staff, crappy food selections and no entertainment for a 14 hour flight. The only good thing was that it was a direct flight.

Flight got delayed by 3 hours but no compensation or anything

Nothing was good. Cabin was stinking, seat wouldn't recline, USB phone charges weren't working.

The flight was on time and boarding was fine. The entertainment system didn't work for the row I was in. The part that I really disliked is that the air hostesses WILL wake you up (I had an eye mask and neck pillow) for ALL of the food services, even if they're bringing water/snacks. I would rather be left alone after the initial and final food services but this didn't deter them.

Very old flight So much out side sound Tv is off

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

Information on your arrival and departure airports