£171 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 23/12. 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
£483
Typical prices: £668-£852
Air France
Mon 19/1Thu 19/3
BKK - LHR • 1 stop
Cheapest direct flights
£729
Typical prices: £790-£993
EVA Air
Thu 22/1Thu 29/1
BKK - LHR • Direct
Our travellers' advice
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
Video guide: How to find cheap flights to Heathrow
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Top airlines
SAUDIA
Cheapest • from £550 (return)
EVA Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BKK-LHR
Cheapest
BKK-LHR
Most popular
Insights
Insights
Insights
Insights
When to book
7 weeks
in advance
Our data shows that travellers who book at least 7 weeks in advance save around 19% 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

Mon, 19 Jan - Thu, 19 Mar
Air France Logo
11:35 - 21:25
BKK
-
LHR
16h 50m1 stop
Air France Logo
11:30 - 09:15
LHR
-
BKK
14h 45m1 stop
£483Air France
Mon, 19 Jan - Fri, 20 Mar
Air France Logo
09:30 - 21:25
BKK
-
LHR
18h 55m1 stop
Air France Logo
09:00 - 09:15
LHR
-
BKK
17h 15m1 stop
£485Air France
Mon, 19 Jan - Fri, 20 Mar
Air France Logo
09:30 - 21:25
BKK
-
LHR
18h 55m1 stop
Air France Logo
09:00 - 09:15
LHR
-
BKK
17h 15m1 stop
£487Air France
Mon, 22 Dec - Mon, 19 Jan
Air India Logo
17:55 - 11:30
BKK
-
LHR
24h 35m1 stop
Air India Logo
08:45 - 14:10
LHR
-
BKK
22h 25m1 stop
£491Air India
Wed, 11 Mar - Sun, 15 Mar
Air India Logo
20:50 - 11:05
BKK
-
LHR
21h 15m1 stop
Air India Logo
13:00 - 14:10
LHR
-
BKK
18h 10m1 stop
£492Air India
Sun, 21 Dec - Mon, 19 Jan
Multiple Airlines Logo
08:55 - 18:10
BKK
-
LHR
16h 15m1 stop
Multiple Airlines Logo
21:00 - 01:55
LHR
-
BKK
21h 55m1 stop
£493Multiple Airlines
Thu, 25 Dec - Wed, 31 Dec
Multiple Airlines Logo
12:45 - 21:40
BKK
-
LHR
15h 55m1 stop
Multiple Airlines Logo
19:45 - 10:05
LHR
-
BKK
31h 20m1 stop
£494Multiple Airlines
Sat, 7 Feb - Wed, 11 Feb
SAUDIA Logo
15:20 - 14:15
BKK
-
LHR
77h 55m1 stop
SAUDIA Logo
10:00 - 13:40
LHR
-
BKK
20h 40m1 stop
£495SAUDIA
Sun, 21 Dec - Tue, 20 Jan
Multiple Airlines Logo
08:55 - 18:10
BKK
-
LHR
16h 15m1 stop
Multiple Airlines Logo
21:00 - 01:55
LHR
-
BKK
21h 55m1 stop
£496Multiple Airlines
Tue, 2 Jun - Mon, 15 Jun
SAUDIA Logo
15:25 - 07:30
BKK
-
LHR
22h 05m1 stop
SAUDIA Logo
10:00 - 13:45
LHR
-
BKK
21h 45m1 stop
£497SAUDIA
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.

Find cheap flights to London Heathrow Airport
Find cheap flights to London Heathrow Airport

Planning a trip from Bangkok to Heathrow? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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 January.

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 £398 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 Saturday, as it's usually the priciest day. When flying back from London Heathrow Airport, Tuesday 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 November, where tickets cost £675 (return) on average. On the other hand, the most expensive months are April and August, where the average cost of round-trip tickets is £843 and £800 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 7 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 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.
Airlines
EVA Air

Royal Laurel Class offers direct aisle access with a 1-2-1 configuration on 777-300ER and 787 aircraft.


EVA Air’s Premium Economy features a 121º recline and enhanced meals on 777-300ER and 787 aircraft.

Thai Airways

Royal Silk Class offers two full meals on long-haul flights, with Thai and Western options.


Thai Airways economy class features soothing cabin colours and better-than-average in-flight meals.

Airports
BKK

Arrive at BKK early due to potentially longer queues and a transfer to the satellite terminal via an underground train.

LHR

The Heathrow Express offers a quick 15-minute ride to London Paddington. Book tickets in advance for the best rates.

Our travel experts
Robert Schrader

Robert Schrader

Expert on EVA Air and Thai Airways

Robert Schrader

Robert Schrader

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.

Read more
Brandon Schultz

Brandon Schultz

Expert on BKK

Brandon Schultz

Brandon Schultz

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.

Read more
Kirstie Pickering

Kirstie Pickering

Expert on LHR

Kirstie Pickering

Kirstie Pickering

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.

Read more

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

Cheapest flight£171
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 £171 for a one-way ticket and £483 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.
8.4
EVA AirOverall score based on 1296 reviews
8.6Crew
8.1Food
8.4Boarding
8.3Comfort
8.0Entertainment
Airline reviews

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

8.0 ExcellentAnonymous, Dec 2025
CNX - TPE
Read more EVA Air reviews

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.

Seats. there's no way to go to the washroom when you’re seated in the middle without bothering the person beside you.

It was very long way flight but its good I like the food they serve in EVA air its really good!

Flight was canceled was only given only a 8 hour lead time. Had to fight to be put on another airline (United Airlines) that was leaving earlier then the one EVA and rescheduled.

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 crews are very efficient. Other airlines should learn from them when it comes to boarding and departing from the airplane. They also display efficiency in serving meals. They don't keep the aisles blocked for hours like some other airlines. The food is poor. Generally the food was unrecognizable and poorly prepared. The only thing that made it better than US flag carriers is that there was a fresh fruit bowl with each meal.

Staff show very stress with delayed flight more than passenger.

Great experience, comfort and food is delicious. Always great service and one time

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

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.

Crew were excellent and the bar service and chat fantastic. Cheese board delicious. Amenity kit good, very disappointing not getting pyjamas on this leg of the flight and needed to reuse from earlier flight.

No kids provided. Instead we were told to have contacted the airline that we have kids and require kids meals. We were not the only ones who inquired about kids meals. It’s odd. Emirates and other airlines give kids meals as standard and before the adult food comes out. The rice in our meals was gluggy and under cooked. The chicken was also raw. Sadly not the best experience with Finn Air. The hostesses tried to compensate with the snacks and drinks but missed the mark by a long way. Especially when paying Emirates/Qantas prices

Hospitality is good. Should improve on buggage handling because l lost a suitcase. Layover in Dubai was too long , 6 hours

Can’t complain Only downside was the Kiosk passport check and customs clearance at Melbourne. When will they improve that service🤔

Food was excellent. Leg room in economy, not so good; I’m 6’-1”.

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

They should resume the fast track for business / first class passengers

Premium Economy is not worth the extra money you pay. You are neither economy nor business. The seat doesn’t recline enough to relax your legs. Maneuvering while seated is cumbersome. Don’t recommend Premium Economy at all.

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.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

Terrible. It’s like they are stuck in the dark ages. I brought a standard carry on suitcase and a back pack - I was told I could only carry on 7kg per bag - in business class, I was forced to remove articles from the suitcase and put them into my backpack! That’s the most ridiculous thing I’ve ever encountered in all my years of flying. The two bags weighed the same amount but one could not be more than 7kg. Holy cow.

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

It was little disheartening and disappointing. Although flight staff did a good job. But customer service didn’t do anything to resolve my issue.

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.

It never happened. Me flight from Doha to São Paulo was lated and the time of waiting for the luggage arrives when we arrived in São Paulo was about 1 hour and half. So it took a lot of time just waiting the luggage of flight that was already late, consequently we lost the flight to Recife with Latam Airlines and had to go to the Qatar office to arrange another flight to us to Recife, that one with Azul Airlines. It was more 4 hours waiting to this other flight to knows that this other flight was delayed too, total of 5 hours more at the airport to waiting to go home :/

My flight was delayed. I was rebooked twice and even the second flight that was additional connection in London was delayed too, so I ended up spending more than 24 hours flying between four different countries and to be honest I’m not sure whether I ever want to use this airline again. My luggage is still delete. It’s been more than 48 hours now so to be honest, I’m not even sure how to describe the level of frustration I have.

The flight overall was good. The attendants did a good job except that 1 female had too much fragrance on. The other things that made the flight unpleasant were out of the airlines control.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

The flight from Abu Dabhi to Bangalore was terrible. The plane was an order model with no onboard entertainment. The beverage selection were very limited.

excellent, the staff was kind and the boarding process was with no issues or hassle

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

More leg space than other flights, but *maybe* narrower seats

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.

One of your male flight attendant was pushy and a bit of a martinette. Completely unnecessary.

Will never book any flight from Kayak and will never travel ithad airline

In Colombo when I-drop my baggage Sri Lanka air line crew not polite way talk very rude

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

Did not provided with option for class upgrade. Staff at gate was not able and willing to accommodate with class upgrade, eather with plenty empty spots in business and first class.

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

Information on your arrival and departure airports