£255 Find Cheap Flights from Bangkok to London Heathrow Airport – Compare and Save

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 8/11. 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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Everything you should know

Cheapest return fare
£606
Typical prices: £735-£928
China Eastern, Air China
Sun 16/8Sun 13/9
BKK - LHR • 1 stop
Cheapest direct flights
£784
Typical prices: £775-£949
Thai Airways
Tue 28/7Thu 17/9
BKK - LHR • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
EVA Air Premium Economy adds 121º recline and enhanced meals on this long-haul route.
Thai Airways economy stands out with better-than-average meals and calming cabin colours.
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Cheapest • from £615 (return)
Best reviews • 8.5 score
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Direct flights
You can fly direct with EVA Air and Thai Airways. Average duration is 12h 31m
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Cheapest
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Most punctual • 88% on-time
Best time • Fewest delays
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in advance
Our data shows that travellers who book at least 3 weeks in advance save around 17% compared to booking last minute.
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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

Sun, 16 Aug - Sun, 13 Sep
Multiple Airlines Logo
05:05 - 18:40
BKK
-
LHR
19h 35m
1 stop
Multiple Airlines Logo
22:40 - 00:10
LHR
-
BKK
19h 30m
1 stop
£606Multiple Airlines
Mon, 9 Nov - Thu, 3 Dec
Multiple Airlines Logo
11:25 - 18:35
BKK
-
LHR
38h 10m
1 stop
Multiple Airlines Logo
20:25 - 00:10
LHR
-
BKK
20h 45m
1 stop
£607Multiple Airlines
Tue, 28 Jul - Tue, 15 Sep
Multiple Airlines Logo
00:45 - 07:15
BKK
-
LHR
12h 30mdirect
Multiple Airlines Logo
22:40 - 00:10
LHR
-
BKK
19h 30m
1 stop
£608Multiple Airlines
Tue, 14 Jul - Tue, 23 Mar
Multiple Airlines Logo
07:30 - 19:00
BKK
-
LHR
17h 30m
1 stop
Multiple Airlines Logo
07:05 - 08:35
LHR
-
BKK
18h 30m
1 stop
£608Multiple Airlines
Fri, 11 Sep - Thu, 24 Sep
Multiple Airlines Logo
19:10 - 06:30
BKK
-
LHR
17h 20m
1 stop
Multiple Airlines Logo
21:20 - 00:40
LHR
-
BKK
21h 20m
1 stop
£609Multiple Airlines
Sat, 25 Jul - Fri, 2 Oct
Multiple Airlines Logo
07:30 - 19:00
BKK
-
LHR
17h 30m
1 stop
Multiple Airlines Logo
12:35 - 16:40
LHR
-
BKK
22h 05m
1 stop
£610Multiple Airlines
Thu, 20 Aug - Wed, 16 Sep
Multiple Airlines Logo
05:05 - 18:40
BKK
-
LHR
19h 35m
1 stop
Multiple Airlines Logo
22:40 - 00:10
LHR
-
BKK
19h 30m
1 stop
£611Multiple Airlines
Mon, 17 Aug - Mon, 14 Sep
Multiple Airlines Logo
19:10 - 18:40
BKK
-
LHR
29h 30m
1 stop
Multiple Airlines Logo
22:40 - 00:10
LHR
-
BKK
19h 30m
1 stop
£611Multiple Airlines
Sun, 6 Sep - Mon, 5 Oct
Emirates Logo
23:55 - 16:10
DMK
-
LHR
22h 15m
1 stop
Emirates Logo
09:05 - 11:10
LHR
-
DMK
20h 05m
1 stop
£700Emirates
Sun, 27 Sep - Thu, 1 Oct
Emirates Logo
23:50 - 14:25
DMK
-
LHR
20h 35m
1 stop
Emirates Logo
19:50 - 20:45
LHR
-
DMK
18h 55m
1 stop
£718Emirates
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 August.

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 £453 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 £173 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is £515 and £407 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 17% 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£255
Flight from Bangkok Don Mueang Intl to London

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 £255 for a one-way ticket and £606 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 1484 reviews
8.3Comfort
8.7Crew
8.4Boarding
8.1Food
8.0Entertainment
Airline reviews

Service in BKK was very good at answering our question about our canceled flight from Taipei to San Francisco. Did like the lead time about the canceled flight from Taipei to San Francisco and was not given the best options.

8.0 ExcellentAnonymous, Sept 2025
BKK - TPE
Read more EVA Air reviews

Service in BKK was very good at answering our question about our canceled flight from Taipei to San Francisco. Did like the lead time about the canceled flight from Taipei to San Francisco and was not given the best options.

The flight attendants should be nicer, on my first flight I told them I’d prefer a veggie meal sometimes and then she began to lecture me about it, it was a late flight and I wanted an easy digestion meal so that I can sleep quickly. The meals were abit odd, breakfast on my last flight had eggs, oatmeal and fish, did not taste good at all, strange combination. The economy seats are very tight and crowded, not comfortable at all. Overall for the price I paid I thought I was going to get more.

Clean plane, friendly crew, mostly on-time departure. Negativo since there were no snacks offered. Cold drinks only was fine due to turbulence, but nothing to eat? Really?

Except for crying babies all was ok although the movie selection wasn't the best.

Poor food on board, but seats are too small and uncomfortable

1. The entrance to boarding gate G5 (which is at a lower level) is from the walkway (which is at the upper level). That entrance was locked and there was no place for hundreds of people to sit at the upper level, for a long time as the flight was 45 minutes late. 2. The choice of movies on board was extermely limited and poor. 3. The staff was unhelpful and faked politeness.

They didn’t have ice for the drinks and only gave you half a cup of your beverage. Did not have enough water. I got dehydrated

Fast boarding process. Flight was expected for a long haul economy flight

The flight went well. Everything good. Boarding. Meal service. Snack (crackers) & Drinks. Entertainment was good as I watch 4 movies. The need to have milk for hot black tea though as coffee creamer just never makes tea taste nice.

Everything was fantastic! The crew really went above and beyond to make it a great flight. I felt cared for with EVA.

Very bad service and food variety will never come back again

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.

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

Bathrooms were amazing and first class seat was very comfortable. Food was edible but not up to the standards of other first class meals on other airlines. But Caviar was amazing! So much caviar. Dom Perignon 2015 was room temperature. It would have been amazing if it was chilled down a bit more. Slippers were amazing and amenity kit requested was beautiful. Requested Pajamas never came so can’t tell you how nice they were. Loved the design of the seat and personal storage. Suite was much smaller than other airline’s first class and tv screen was tiny and remote difficult to use. I probably wouldn’t pay for this flight again.

Very pleasant.The crews are very helpful.Food are very good.

Everything was superb, only bad point was that the fast track on London Heathrow arrivals was not handed out to me and I had to go back to the gate to collect it.

Superb experience. I hope they bring back the fast track option at Heathrow immigration.

I liked theAVML food. Taste was alright and quantity was enough. Sometimes during the flight I felt that the smell from toilet was coming to the cabin

You can improve in many ways First the crew in general is good, but needs to work with passion to their works not like robots Second, collecting the ear headphones long time before landing is strange The crew should deal with the passengers with respect and descent way not like giving orders

Gate and boarding processes were handled smoothly and efficiently. Both (connecting) flights departed and arrived on time. The cabin crew seemed anxious and a bit stressed/rushed. Food service was OK, but the hot food dishes were poor quality.

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.

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

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.

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

food poor i said chiken i got pack a pow breakfast lousey .job to explain wot it was ...

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.

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

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.

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.

Good staff, good intent, decent entertainment. More seat space would always be of benefit

I had first class service from them. A little late taking off, but no major problem

Not good. Expected a lot more as far as excellence.

Was required to print a boarding pass, which I'd prefer to avoid. Seat (economy x) was comfortable, service was excellent.

Found out we were limited to one carry on item per person as we checked in and weight. This requirement has never happened to us before. Then we get on the plane and it's apparent why. There is barely any space on this plane. I sat in the middle row middle seat and shared a single section of leg room with the stranger next to me. Had to put my backpack in the overhead which barely fit and made it so I didn't want to bother getting my things out of it later like my eye mask. There was an angry man complaining about his seat and demanding to be switched for a good 15 to 20 minutes as we were boarding. To the flight attendants' credit, they didn't give into him (not that they could have), but it definitely made for an unpleasant experience. Also there was a child running up and down the aisle during the flight including takeoff and landing. The crew told the parents but they just smiled and continued letting the kid do this. This was p annoying and not to mention dangerous for the kid

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

excellent, staff and boarding were all seamless and no issues, thank you!

I was charged $604 for a bag that weighed 17 kg. I was given three different prices until they landed on the most expensive one and didn't budge a penny. It's ironic and a bit enraging because the total cost of my ticket was $468. I've traveled the world and never experienced these kind of prices for only one piece of checked luggage.

The WiFi was not compatible on both my phones (Vivo Y30 5g and Samsung Galaxy A32) with up-to-date android software.

Old plane, old entertainment system. It wasn't working throughout the entire flight. I was offered to connect to their system via Wifi to watch on my phone. Crew wasn't very helpful except one lady who turned the experience around.

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.

1st of all on February 27th Abu Dhabi to Delhi flight the seat wasn't comfortable at all, coming back the Lounge at Abu Dhabi didn't have anything. Than the Food in the flight

Eine Toilette der Business Class war gesperrt und somit nicht benutzbar.

I request kosha food all my flight but this flight didn’t imclude my kosha meal.

Nothing was good everthing was hopeless especially your staff at indira gandhi international airport india.Everthing has deteoriated

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

Information on your arrival and departure airports