£269 Find Cheap Flights from Bangkok to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bangkok to Heathrow departing on 29/6. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bangkok to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bangkok to London.
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Everything you should know

Cheapest return fare
£576
Typical prices: £882-£662
Gulf Air
Thu 4/6Sun 7/6
BKK - LHR • 1 stop
Cheapest direct flights
£831
Typical prices: £999-£765
EVA Air
Fri 19/6Mon 22/6
BKK - LHR • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Thai Airways economy offers soothing cabin colours.
Arrive early at BKK for potential long queues.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from £576 (return)
Best reviews • 8.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with EVA Air and Thai Airways. Average duration is 12h 48m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
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Insights
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
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When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 18% compared to booking last minute.
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Flight Deals

Cheap Flights from Bangkok to Heathrow

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

Thu, 4 Jun - Sun, 7 Jun
Gulf Air Logo
20:15 - 15:20
BKK
-
LHR
25h 05m
1 stop
Gulf Air Logo
10:00 - 09:45
LHR
-
BKK
17h 45m
1 stop
£576Gulf Air
Wed, 3 Jun - Sun, 7 Jun
Multiple Airlines Logo
20:15 - 15:20
BKK
-
LHR
25h 05m
1 stop
Multiple Airlines Logo
21:45 - 23:50
LHR
-
BKK
20h 05m
1 stop
£578Multiple Airlines
Wed, 3 Jun - Thu, 4 Jun
Multiple Airlines Logo
20:15 - 15:20
BKK
-
LHR
25h 05m
1 stop
Multiple Airlines Logo
21:45 - 23:50
LHR
-
BKK
20h 05m
1 stop
£579Multiple Airlines
Tue, 9 Jun - Thu, 11 Jun
Multiple Airlines Logo
20:15 - 15:20
BKK
-
LHR
25h 05m
1 stop
Multiple Airlines Logo
20:45 - 23:50
LHR
-
BKK
21h 05m
1 stop
£580Multiple Airlines
Wed, 3 Jun - Wed, 10 Jun
Gulf Air Logo
20:15 - 15:20
BKK
-
LHR
25h 05m
1 stop
Gulf Air Logo
22:05 - 09:45
LHR
-
BKK
29h 40m
1 stop
£581Gulf Air
Thu, 4 Jun - Sun, 7 Jun
Gulf Air Logo
20:15 - 15:20
BKK
-
LHR
25h 05m
1 stop
Gulf Air Logo
10:00 - 09:45
LHR
-
BKK
17h 45m
1 stop
£582Gulf Air
Fri, 19 Jun - Fri, 26 Jun
Air India Logo
15:15 - 11:30
BKK
-
LHR
26h 15m
1 stop
Air India Logo
12:30 - 19:20
LHR
-
BKK
24h 50m
1 stop
£583Air India
Thu, 18 Jun - Thu, 25 Jun
Air India Logo
07:30 - 20:00
BKK
-
LHR
18h 30m
1 stop
Air India Logo
13:50 - 13:35
LHR
-
BKK
17h 45m
1 stop
£584Air India
Wed, 21 Oct - Tue, 24 Nov
Emirates Logo
23:50 - 14:25
DMK
-
LHR
20h 35m
1 stop
Emirates Logo
20:20 - 20:15
LHR
-
DMK
16h 55m
1 stop
£710Emirates
Thu, 1 Oct - Wed, 21 Oct
Emirates Logo
23:50 - 16:10
DMK
-
LHR
22h 20m
1 stop
Emirates Logo
16:50 - 20:45
LHR
-
DMK
21h 55m
1 stop
£713Emirates
Booking Insights

KAYAK’s insights & trends for Bangkok to Heathrow flights

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

How much is a return flight from Bangkok to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Bangkok to London Heathrow Airport departing in June.

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

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Bangkok to London Heathrow Airport costs £431 on the route between Bangkok Suvarnabhumi Airport (BKK) and London Heathrow Airport (LHR). It is also the most popular route.

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

The average price of all round-trip flights from Bangkok to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Bangkok to London Heathrow Airport, look for departures on Mondays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from London Heathrow Airport, Monday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bangkok to London Heathrow Airport, 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 Bangkok to London Heathrow Airport is February, where tickets cost £171 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is £522 and £505 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bangkok to London Heathrow Airport, 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 Bangkok to London Heathrow Airport, you should book around 3 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Expert advice

Expert advice for your flight from Bangkok to Heathrow

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Robert Schrader

Robert Schrader

Expert on EVA Air and Thai Airways

One of the web's original travel bloggers, Robert launched his first site, Leave Your Daily Hell, in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Brandon Schultz

Brandon Schultz

Expert on BKK

Brandon travels every week and makes friends with stray cats wherever he goes. Dogs, too... he once brought one home to the US from the Amalfi Coast. He’s written 6 books, visited 6 continents (still waiting on Antarctica), and would eat ice cream 6 times a day if he could. He lives in Brooklyn, New York, with his partner and three cats.

Kirstie Pickering

Kirstie Pickering

Expert on LHR

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

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

Cheapest flight£269
Flight from Bangkok Suvarnabhumi Airport to London Heathrow Airport

When to book flights from Bangkok to Heathrow

Are your dates flexible? Find out the best times to travel from Bangkok to Heathrow 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 Bangkok to London Heathrow Airport flights

  • What is the luggage allowance for Thai Airways?

    When flying with Thai Airways, you are allowed to bring the following luggage included in your ticket price. Typically, Economy allows 35 kg, Premium Economy and Royal Silk Class permits 40 kg and Royal First Class has a 50 kg allowance. You are also allowed to buy extra luggage.

  • How soon can I check in online for my flight with Austrian Airlines?

    To save time and get the seat you desire, it is advisable to check in before you arrive at the airport. With Austrian Airlines, you are able to check in online 48 hours before your departure. Make sure you still get to the airport at least 3 hours before your flight.

  • Which airlines offer a highly rated business-class experience?

    If you want to indulge and get top-class business service, choose either Qatar or Emirates. Qatar has been voted as one of the best business-class experiences in the world, and Emirates is not far behind. Business class offers reclining lie-flat seats, fine dining, swivel chairs and private workspaces. You are given dedicated airline staff attention at all times.

  • Which airlines release fewer CO2 emissions?

    If you are an environmentally conscious traveller, then you should book your flight with either KLM or Air France, which typically have smaller carbon footprints. KLM releases roughly 57% less carbon, while Air France emits around 56% less per person per flight. Do your part in helping them improve their sustainability mission for the future.

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

    In the last 3 days, the lowest price for a flight from Bangkok to London Heathrow Airport was £269 for a one-way ticket and £576 for a return.

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

    When flying out of Bangkok you will be using one of these airports: Bangkok Suvarnabhumi or Bangkok Don Mueang Intl. You will be landing at London Heathrow.

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

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

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

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

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

    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 Bangkok to London Heathrow Airport.

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

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

    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 London Heathrow Airport with an airline and back to Bangkok with another airline.

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

    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 London Heathrow Airport from Bangkok 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 Bangkok to London Heathrow Airport

  • If you are going on a family holiday and concerned about the long flight on this route with the kids, don’t stress. Emirates has children’s entertainment at its heart. On board, the kids get coloured headphones for free and can watch as many kids' TV channels as they like. They can also pretend to be a pilot by watching the external airshow cameras when the plane takes off and lands.
  • When you book your flight with Turkish Airways, you are allowed to fly with your guide dog and emotional support animals. These animals are accepted free of charge in the cabin. Make sure you have all your veterinary documents in place for health checks.
  • When you book your flight from Bangkok with British Airways, rest assured your booking process will be streamlined from start to finish with their BA app. Keep all your travel information on hand. Alternatively, simply print out your boarding pass before you leave for the airport.
  • If you have been on a sporting holiday or are a travelling musician, you can travel with your special luggage on British Airways for free if it doesn’t exceed your luggage allowance. If it fits in the cabin you can take it on board, but if not you are able to check it into the main hold. All special luggage must be in a protected hard cover.
  • If you have booked a flight on Air India to London Heathrow Airport (LHR), why not test out their Bid and Upgrade service? If you bid the highest and are successful you get to experience all the benefits of a business- or first-class flight. Simply bid what you think you can afford and see if you are the lucky traveller.

Prefer to fly direct from Bangkok to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Bangkok to London Heathrow.
Find which airlines fly direct from Bangkok to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Bangkok to London Heathrow

Monday

EVA Air,Thai Airways

EVA Air,Thai Airways

Tuesday

EVA Air,Thai Airways

EVA Air,Thai Airways

Wednesday

EVA Air,Thai Airways

EVA Air,Thai Airways

Thursday

EVA Air,Thai Airways

EVA Air,Thai Airways

Friday

EVA Air,Thai Airways

EVA Air,Thai Airways

Saturday

EVA Air,Thai Airways

EVA Air,Thai Airways

Sunday

EVA Air,Thai Airways

EVA Air,Thai Airways

See more direct flights

Direct returns

London Heathrow to Bangkok

Monday

EVA Air,Thai Airways

EVA Air,Thai Airways

Tuesday

EVA Air,Thai Airways

EVA Air,Thai Airways

Wednesday

EVA Air,Thai Airways

EVA Air,Thai Airways

Thursday

EVA Air,Thai Airways

EVA Air,Thai Airways

Friday

EVA Air,Thai Airways

EVA Air,Thai Airways

Saturday

EVA Air,Thai Airways

EVA Air,Thai Airways

Sunday

EVA Air,Thai Airways

EVA Air,Thai Airways

See more direct flights

Reviews of the top 5 airlines flying from Bangkok to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Bangkok to London. 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 Bangkok to Heathrow? 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.
8.5
EVA AirOverall score based on 1457 reviews
8.7Crew
8.1Food
8.4Boarding
8.3Comfort
8.0Entertainment
Airline reviews

I liked that they gave us a couple of meals and drinks but the meal was not good and not many options especially if we are seated in the back of the plane.

6.0 GoodBrandon, Apr 2026
HKT - BKK
Read more EVA Air reviews

I liked that they gave us a couple of meals and drinks but the meal was not good and not many options especially if we are seated in the back of the plane.

The flight from SEA to Taipei was on a Boeing 787-10. Economy seats were unacceptably cramped and the seats themselves were old and lacking cushion. I'm only 5'3" and couldn't cross my legs as my knees were up against the seat in front of me! I could not get WiFi to work most of the time on both flights and crew were invisible except to serve meals. The onboard entertainment also did not work reliably and was very hard to hear through the provided earbuds. The Asian vegetarian meals were interesting. I hope they can provide a fully vegan option though these meals seemed to be already. I appreciate their providing these meals options for vegans. I don't think I'll fly a 787-10 if I can help it. It was the definition of a sardine can in Economy.

This flight was even more crowded that Singapore to Taipei, an extra row of seats and an additional 4th seat in the middle made it extremely crowded. No leg room, no width for room. Terribly uncomfortable flight. The food was disgusting. We will never fly EVA Air again.

Very nice, I feel I got good value for the price.

The soft service on EVA was superb from the quick and attentive flight attendants, to the turn down service, and excellent food. This all made my 11 hour flight very comfortable and relaxing.

Certain flight crew member were rude and short with me when I asked questions.

Flight attendants are polite and pro. Missing of on flight entertainment is a big miss for a ordinary airline.

Excess baggage fees are outrageous ($250 per bag). Flight crew and planes are nice.

We were very impressed with the modern plane its amenities, as well as the services of flight attendants.

Everything was great, however the seats in the back are very small. Not as Comfortable as I would have liked.

Very bad service and food variety will never come back again

Everything was perfect. Staff were informative and professional and flight boarding, flying and de-embarking was smooth. I would certainly travel with Emirates again.

My baby was with me it was really good experience with emirates

Fantastic as ever. Great staff super catering and excellent service.

Flight and entertainment great. Food needs to be improved, only one choice on the menu. Staff worked well throughout.

Everything was great except the boarding experience. After the check in, they "packed us" in a small area, very hot there. It would be nice to be aware of this, I'd wait on the outside area

Chaos at the gate while boarding - no clear signs or announcements

Always enjoyed flying with Emirates, flown with others but they don't really measure up. The others are cheaper without a doubt, but not as good as Emirates

The stewardess took a picture as a gift , if you asked for it. Every thing was very good, Especially the food, big and tasty. The service was good, they served water several times, very frequent.

Warm staff, very responsive service. Well furnished cabin and comfortable seat and amenities. Excellent onboard wifi connection and very large comfortable restrooms.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

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

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

Excellent airline. The plane was clean and the staff were very attentive

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

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

Flight and flight service was great. When a flight is cancelled, publish to all affected with email and txt. Explaining the way forward.

Qatar Airways has gone down over the last few years.

My journey with Qatar Airways from Ahmedabad to Jacksonville on 3rd February 2026 was truly exceptional. The entire experience reflected comfort, care, and world-class service. Complimentary high-quality Wi-Fi throughout the journey was a welcome luxury, especially on a long-haul flight. The vegetarian meals were thoughtfully prepared, delicious, and served with attention to detail, along with a fine selection of snacks and beverages. What truly elevated the experience was the cabin crew — graceful, courteous, and genuinely attentive, delivering outstanding hospitality at every step. This journey perfectly showcased the premium standard Qatar Airways is known for, and it left a lasting impression. I would gladly fly with them again.

The boarding experience did not follow the Zones that were listed on the boarding passes. This was a two-level aircraft with many passengers. Because zones were not called out by the airline staff, there was simply a mob trying to board and it was not a pleasant experience.

All great, because I was given a seat with extra legroom on this part of my trip.

I wish I knew in advance that the connecting flight was by indigo air

Very efficient and professional staff. Food was good and so was entertainment selection.

Plane was good Crew was good Food was just ok Could have had more entertainment options But overall good

Crew and food was good, ok leg room if you don’t have a big box under the seat. And the seats are so narrow (I’m only 70kg), will consider an alternate airline next time

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

Seats were very comfortable and the staff too was very friendly.

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

Limit the number of usage of wine or please arrange our seats. The passenger was drunk on this flight and not on Thiruvananthapuram to Abudhabi.

Flight got canceled due to Middle East conflict. Just fly hasn’t refunded me the money

Food quality and varites were very minimum. Surprised to have no desserts. Business class tickets should have lounge access and seats selection. They should be allowed to board while people with wheel chair, secial assistance and family with childrem.

Good one but just notice that you have to ask several time to get water or coffee .

Early arrival. Good boarding. Deplaning this flight is very slow both coming and going. Baggage arrived quickly for Pearson

Dirty and smelly lavatory and toilets in Wamos Air operated flights

The flight was over 1 hour late taking off ,when I arrived in Abu Dhabi ,I missed my connecting flight to Bangkok so I had to wait almost 6 hours for my flight arriving in Bangkok at 6:30 am ,So I missed a whole day of my vacation and my hotel room sat empty so I paid for hotel days that I was not there. In Abu Dhabi there was a woman that worked the desk at transfers that was so professional, courteous , helpful,and may I say absolutely beautiful .she got me food vouchers for my layover and was a very calming presence. Besides that I will never use Etihad again I will pay the Xtra money . I'm sure they won't read or see this but it's my "2 cents" I'll use an airline that respects me and my hard earned dollars

Kayak and Aran grant issuing business class tickets without lounge access and sometimes 1 or 2 connections in economy class. It’s very disappointing to find out that after buying the ticket. Never buy tickets on kayak and Aran grant again

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

Information on your arrival and departure airports