£229 Find Cheap Flights from London Heathrow Airport to Thailand

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 Thailand departing on 4/5. 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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Best Thailand Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 72 hours

Bangkok
Bangkok2 stops£304
Phuket City
Phuket City1 stop£421
Ko Samui
Ko Samui2 stops£515
Chiang Mai
Chiang Mai2 stops£416
Krabi
Krabi2 stops£506
Udon Thani
Udon Thani2 stops£671
Chiang Rai
Chiang Rai1 stop£791
Khon Kaen
Khon Kaen2 stops£430
Hat Yai
Hat Yai2 stops£620

Cheap Flight Deals from Heathrow to Thailand (LHR-TH0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Thailand 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 Thailand

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Heathrow to Thailand.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
17:30 - 13:45LHR-BKK
38h 15m2 stops
15:25 - 07:30BKK-LHR
22h 05m1 stop
£304SAUDIA
Find Deal
Sun, 4 May - Sun, 18 May
17:30 - 13:45LHR-BKK
38h 15m2 stops
15:25 - 12:40BKK-LHR
27h 15m2 stops
£308SAUDIA
Find Deal
Sun, 4 May - Sun, 18 May
21:45 - 18:25LHR-HKT
14h 40m1 stop
00:55 - 07:00HKT-LHR
36h 05m1 stop
£562Etihad Airways
Find Deal
Tue, 29 Apr - Mon, 19 May
20:55 - 23:35LHR-HKT
20h 40m1 stop
09:10 - 07:00HKT-LHR
27h 50m1 stop
£566Etihad Airways
Find Deal
Tue, 27 May - Fri, 27 Jun
12:30 - 19:45LHR-KBV
25h 15m1 stop
20:20 - 19:10KBV-LHR
28h 50m1 stop
£725Thai Airways
Find Deal
Mon, 8 Sep - Mon, 15 Sep
12:30 - 19:45LHR-KBV
25h 15m1 stop
09:30 - 19:10KBV-LHR
15h 40m1 stop
£736Thai Airways
Find Deal
Mon, 1 Sep - Mon, 15 Sep
08:05 - 16:50LHR-UTP
26h 45m2 stops
13:00 - 14:05UTP-LHR
31h 05m2 stops
£766Qatar Airways
Find Deal
Wed, 14 May - Wed, 28 May
21:35 - 18:30LHR-USM
14h 55m1 stop
08:45 - 19:20USM-LHR
16h 35m1 stop
£776EVA Air
Find Deal
Sun, 4 May - Sun, 11 May
21:35 - 21:35LHR-USM
18h 00m1 stop
09:15 - 19:20USM-LHR
16h 05m1 stop
£782EVA Air
Find Deal
Mon, 1 Sep - Fri, 5 Sep
09:00 - 10:30LHR-USM
19h 30m2 stops
15:30 - 06:25USM-LHR
20h 55m2 stops
£827Qatar Airways
Find Deal
Tue, 2 Sep - Fri, 12 Sep

KAYAK's insights & trends for Heathrow to Thailand flights

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

What is the cheapest London Heathrow Airport to Thailand flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London Heathrow Airport to Thailand.
The cheapest ticket to Thailand from London Heathrow Airport found in the last 72 hours was to Bangkok, at £616 return. The most popular route is from London Heathrow Airport (LHR) to Bangkok Suvarnabhumi Airport (BKK), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £616.

What is the cheapest time of day to fly to Thailand?

The average price for all round-trip flights from London Heathrow Airport to Thailand depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Thailand is generally in the afternoon, when retur flights cost £868 on average. Morning departures are around 4% cheaper than evening flights, on average. The most expensive time of day to fly to Thailand is generally in the evening, which is peak travel time and where the average cost of a ticket is £1,093.

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

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 £519 on average.

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

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 Thailand, 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 Thailand is May, when tickets cost £634 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is £943 and £943 respectively.

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

The average price of all round-trip flights from London Heathrow Airport to Thailand clicked on KAYAK for each day over the last 12 months.
For London Heathrow Airport to Thailand, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Thailand back to London Heathrow Airport, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

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 Thailand, 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 Thailand, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

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

Low season

August

High season

December

Cheapest flight

£229
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly (24% more expensive on average)
Flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport

FAQs - booking Thailand flights

  • Can I stay at hotels at Thailand Airports?

    If you’re arriving late into Thailand, you might want to use a hotel before continuing your journey. At Bangkok Airport there is the Avagard Capsule Hotel, whilst at Chiang Mai Airport you can use The Residence Hotel. If you’re arriving at Don Mueang Airport there is the Amari Don Muang Airport Bangkok. Whereas at Phuket Airport you can opt for the Oasis Phuket Airport.

  • Where can I find family facilities at Heathrow Airport (LHR)?

    When travelling with kids you’ll be pleased to know there is entertainment at LHR to keep your little ones occupied. You can visit the Stay and Play areas, which are located in all the terminals. Here your kids can use soft play areas and slides, as well as get stuck into some exercise books.

  • Can I find hotels at London Airports?

    If your flight is early in the morning you can stay at a hotel so you’re not in a rush. For example, at Terminal 2 there is an Aerotel, whilst at Terminal 5 there is a Sofitel. These hotels are close to the check-in desks and also offer wake-up calls.

  • How do I travel from Thailand airports to the city centres?

    From Bangkok Airport you can get to the city centre in about 1h 20min using the ARL City Line and changing for the MRT Blue line. If you’re landing at Chiang Mai Airport you can get to the centre on the Ac 10 bus, which takes around 10 minutes. At Don Mueang Airport you can get the 146 – Rapid bus that takes about 1h 13min to Bangkok. Whereas at Phuket Airport you can get to an area like Kamala Beach in about 1h 5min on the Airport to Rawai bus.

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

    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 Thailand.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Thailand 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 Thailand?

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

    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 from London Heathrow Airport to Thailand up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from London Heathrow Airport to Thailand

  • Looking for a cheap flight from London Heathrow Airport to Thailand? 25% of our users found tickets from London Heathrow Airport to Thailand for the following prices or less: Bangkok £395 one-way - £676 round-trip
  • When you get flights from London Heathrow to Thailand you are able to relax at a lounge before take-off. For instance, you can go to the Plaza Premium Lounge in Terminal 2. This costs about £40 and offers a range of food and drink, complimentary Wi-Fi and charging points.
  • Upon landing in Thailand you can get to nearby locations quickly. For instance, from Bangkok Airport (BKK) you can drive to Chon Buri in around 50 minutes. From Phuket Airport (HKT) you can go to Kamala Beach in about 35 minutes. If you're arriving at Don Mueang Airport (DMK) the journey to Nakhon Nayok is approximately 1h 20min. Whereas from Chiang Mai Airport (CNX) you can get to Lamphun in about 32 minutes.
  • If you have a disability or mobility issue when departing from Heathrow Airport (LHR) you are able to get help for your journey through the terminal. It’s suggested that you call up the airline 48 hours in advance so they have time to arrange for assistance.
  • You are able to get to Heathrow easily before take-off. From London Paddington Train Station you can get the Heathrow Express, which takes about 15 minutes. From central London, like Covent Garden, you can get the Piccadilly Line in about 45 minutes. There are also National Express buses you can get from Victoria Coach Station, which take approximately 35 minutes.
  • You can change your currency from British Pound to Thai Bhat when you land. At Bangkok Airport you can use Bangkok Bank Cash Exchange that’s located near to the bus terminal. Whereas at Chiang Mai Airport there is a Siam Commercial Bank next to the Arrivals exit.
See more tips

Top 5 airlines serving from Heathrow to Thailand

Need help choosing which airline to fly with from Heathrow to Thailand? 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.
8.4
EVA AirOverall score based on 1170 reviews
8.3Comfort
8.1Food
8.0Entertainment
8.4Boarding
8.6Crew
Airline reviews

Everything is good staff is polite and helpful flights are on time sub sandwhich for a snack was good with a bottle of water only thing maybe more variety of food like breakfast or dinner depends on the time

8.0 ExcellentAnonymous, Mar 2025SGN - TPE
Read more EVA Air reviews

Everything is good staff is polite and helpful flights are on time sub sandwhich for a snack was good with a bottle of water only thing maybe more variety of food like breakfast or dinner depends on the time

For the price, it was better than other airlines; quality of food and service was very good.

I appreciate the email reminders for online check-in which made my entry to the lines less stressful. The flight was on schedule and on time. The baording staff were proactively helpful and approachable. The airplane inflight food, entertainment and comfies as well as provisions are excellent even in the economy seating. The airline transfer was smooth and easy! Luggage safe and intact! Thank you EVA airline for making my trip a reliable safe and comfortable experience.

Movie selection was not as good as recent flights I've taken (EVA and other airlines).

Very smooth flight. Superb crew, great food and service. Slept most of the way. Excellent airline.

Great but I am not sure why I was placed in zone 4 for boarding despite being an Infinity Member??? Can you explain online. Thanks

I was sleep when they brought the food. They had put a note on my seat. There was no food when I asked for food later. There was just one main meal served in this 14 hours flight. They offered me sandwich with ham which I don’t eat since I am pescatarian. Long story short I had to wait to get to TPE to get something to eat. I am extremely disappointed from the service. I have been flying EVA since I was 1 year old. Perhaps no more EVA for me. Seems EVA glorious day is long gone

Excellent food. Good service. Crammed Premium Economy seats. I Asked to change seats during check in. They told me the flight was fully booked. But on board I saw empty seats where I could have been easily relocated.

The boarding was organized and efficient. The crew was very thoughtful and did not wake me up when meals were served. I was totally exhausted after 2 weeks of vacation with a tour group. So sleep was more important to me. The crew just left me a sticker telling me that food had been served and if I woke up hungry to contact the crew. I did have the last meal scheduled on board. Food was very mediocre. The scrambled egg and minced meat were too salty. The porridge was passable. I was disappointed because I have high expectations of food from Taiwan. I thought EVA being a Taiwan based airline would have served its customers better tasting food.

The food is quite mediocre. I had spaghetti and the tomato based sauce was quite salty and there were no other flavors, no spices used in the sauce.

I give EVA 5 stars in every category. I enjoy this airline and it's great team of employees. I always highly recommend EVA to friends and family and everyone.

The flight was delayed going out of the gate at BKK that made it a difficult challenge to get through immigration transfer at tapei and make it to my departure on time. This appears to be a recurring issue. The flight crew and cabin crew were excellent. The food was very nice.

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.

The setting configuration of the aircraft stinks. Nobody should pay business class fares and be so uncomfortable. The design of facing fellow passengers is a brilliant nincompoop.

Entertainment is limited with a relatively old catalogue. Wi-Fi never works and the cabin and lavatory had evidence of a lot of scuff marks and temporary repairs. Nothing unsafe, but a bit tatty in places.

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

USB charging port was not working at my seat 48K.

I enjoy flying with Thai Airways, however their B788 business class configuration is quite dated. Additionally , while the service is always friendly and efficient, I’m getting tired of the same “usual suspects” when it comes to food choices. Since it was a lunchtime flight, what about some gourmet sandwiches or some type of salad dish for the main course? The entertainment options are also quite limited and this is not unique to TG, so much so that given the short duration of the flight I ended up not bothering with any entertainment. Finally, despite signs around the cabin advising wifi available, I was unable to con-net and in fact I’ve never been able to connect on any TG flight over the last year or so - what’s the go here??

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

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

I was unable to pre purchase sear upgrades or internet. Their online site is not user friendly and poor. I felt singled out in customs. Seats are very small even for a small person.

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

Aircraft was spacious compared to American Airlines, food was great, entertainment was much better with a wide variety of options, and the crew was very polite.

Boston to Doha was great but Doha to Dhaka was the worst experience.

Moved seats, didn't accommodate requests to change seats even though other seats were available.

Wasn’t allowed to continue with the purchased tickets because I hadn’t been able to go on the first scheduled leg.

The rows of seats in economy class are seriously close to one another making eating and resting just about impossible - there is hardly any legroom. Anyone larger than average size would have an incredibly uncomfortable flight. I had to basically share my seat with the lady passenger next to me as she was too big to fit into her allotted seat.

Overall experience was OK. Seats were truly uncomfortable for such a long flight. Food quality was mediocre at best. The staff was great though!

Staff was very friendly. There is no on board entertainment, but it’s such a short flight that it doesn’t matter. We also got a meal which was nice and unexpected due to the length of the flight.

Flight was fine overall. What you would expect from economy seats. I did appreciate the amenities (eyemask, earplugs, small toothbrush and toothpaste, thin socks).

Certainly! Here’s a more concise and refined version of your report, maintaining a polished and professional tone: --- Crew Check-In – Kolkata (CCU) The crew handling check-in in Kolkata was outstanding—efficient, courteous, and highly organized. Flight Segment – CCU to Abu Dhabi (AUH) A standard flight overall. Notably, only one in-flight meal option—a vegetarian curry—was available, which seemed unsuitable for a red-eye journey. The crew offered no alternatives, which was unexpected. Flight Segment – Abu Dhabi to Rome (AUH-FCO) Comfort improved on this leg, but service quality was average, falling short of Etihad’s premium standards. Crew attention was heavily absorbed by a difficult couple in Row 15 (port side), resulting in disproportionate focus. It was concerning that a steward had to personally return to apologize, a task better suited for supervisory staff. This highlights a development opportunity for supervisors Anna and Quashim in managing guest escalation professionally.

Horrible. After paying for seats, I was cramped, my daughters legs kept hitting the seat in front, I had no overhead bin space and no help from stewards on board, the food was served cold, when asked for snacks was told to wait and never received any, the flight was cold with no temperature controls. Entertainment was outdated. I booked this through partnership with American Airlines but will avoid in the future.

Horrible. After paying for my seats, I was cramped, had no overhead bin space, freezing as the flight had no temperature controls, the food was awful and served cold, when asked for snacks was told to wait and then never received any. I booked this flight as a partner through American Airlines but will avoid in the future.

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 flight take time was changed 23 times. The system kept sending messages it will be earlier at 4am and eventually the flight was at 9am I didn’t sleep all night because of that

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.

The seat was like there is no leg space....there were no proper option for food in the airline. It seemed like the airline was at brink of bankruptcy. The crew was helpful except for a few.

Bad. Flight was very uncomfortable with narrow and shallow seats, very little food and water. I will not fly etihad again.

Boarding catastrophic let alone have to claimb the plain rather than using jetway. 5.5 hr delay leaving had to do stop in Lgw for a new crew which further compounded the delay. Connecting flight would not wait and had to pend a night in a hotel. Curiously my seat would not go full flat.

Communication between the captain/crew and the passengers needs to be improved.

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced.

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

We bought premium Economy, thinking it would be more comfortable, but the seat is so narrow ,that my legs and feet are swollen , I can't wear shoes !

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