LHR - BKK

C$ 547 Find Cheap Flights from London to Bangkok

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Bangkok departing on 10/1. 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 Bangkok Suvarnabhumi Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Bangkok, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Bangkok, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
C$ 821
Overall average: C$ 1,235
Shenzhen Airlines
Fri 9/1Sun 18/1
LHR - BKK • 1 stop
Cheapest direct flights
C$ 1,323
Typical prices: C$ 1,246-C$ 1,575
EVA Air
Mon 19/1Mon 26/1
LHR - BKK • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Heathrow's security lines can be long; arrive early.
Use the Airport Rail Link for easy access to Bangkok.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
6 weeks
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 10% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 13% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Bangkok!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from London to Bangkok (LHR-BKK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Bangkok 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 round-trip flight deals from London to Bangkok

Fri, 9 Jan - Sun, 18 Jan
Shenzhen Airlines Logo
9:10 p.m. - 6:30 p.m.
LHR
-
BKK
38h 20m1 stop
Shenzhen Airlines Logo
12:10 p.m. - 7:10 p.m.
BKK
-
LHR
38h 00m1 stop
C$ 821Shenzhen Airlines
Fri, 6 Feb - Thu, 12 Feb
Shenzhen Airlines Logo
9:10 p.m. - 6:30 p.m.
LHR
-
BKK
38h 20m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 7:10 p.m.
BKK
-
LHR
22h 55m1 stop
C$ 889Shenzhen Airlines
Sat, 3 Jan - Fri, 23 Jan
Shenzhen Airlines Logo
9:10 p.m. - 6:30 p.m.
LHR
-
BKK
38h 20m1 stop
Shenzhen Airlines Logo
12:10 p.m. - 7:10 p.m.
BKK
-
LHR
38h 00m1 stop
C$ 891Shenzhen Airlines
Sat, 21 Mar - Tue, 24 Mar
Shenzhen Airlines Logo
9:10 p.m. - 11:10 a.m.
LHR
-
BKK
31h 00m1 stop
Shenzhen Airlines Logo
7:30 p.m. - 7:10 p.m.
BKK
-
LHR
30h 40m1 stop
C$ 907Shenzhen Airlines
Wed, 18 Mar - Tue, 7 Apr
Shenzhen Airlines Logo
9:10 p.m. - 2:15 a.m.
LHR
-
BKK
22h 05m1 stop
Shenzhen Airlines Logo
7:30 p.m. - 8:00 p.m.
BKK
-
LHR
30h 30m1 stop
C$ 940Shenzhen Airlines
Fri, 24 Apr - Sun, 10 May
Shenzhen Airlines Logo
10:05 p.m. - 11:10 a.m.
LHR
-
BKK
31h 05m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 7:50 p.m.
BKK
-
LHR
22h 35m1 stop
C$ 962Shenzhen Airlines
Tue, 26 May - Wed, 27 May
Air India Logo
9:45 p.m. - 8:25 p.m.
LHR
-
BKK
16h 40m1 stop
Air India Logo
10:25 p.m. - 7:00 p.m.
BKK
-
LHR
26h 35m1 stop
C$ 986Air India
Fri, 20 Mar - Tue, 24 Mar
Shenzhen Airlines Logo
9:10 p.m. - 2:15 a.m.
LHR
-
BKK
22h 05m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 7:10 p.m.
BKK
-
LHR
22h 55m1 stop
C$ 990Shenzhen Airlines
Sun, 22 Feb - Thu, 5 Mar
Shenzhen Airlines Logo
9:10 p.m. - 2:15 a.m.
LHR
-
BKK
22h 05m1 stop
Shenzhen Airlines Logo
7:30 p.m. - 7:10 p.m.
BKK
-
LHR
30h 40m1 stop
C$ 995Shenzhen Airlines
Sun, 22 Feb - Tue, 24 Mar
Shenzhen Airlines Logo
9:10 p.m. - 11:10 a.m.
LHR
-
BKK
31h 00m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 7:10 p.m.
BKK
-
LHR
22h 55m1 stop
C$ 997Shenzhen Airlines
Booking Insights

KAYAK's insights & trends for London to Bangkok flights

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

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

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 Bangkok Suvarnabhumi 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 London Heathrow Airport to Bangkok Suvarnabhumi Airport is September, where tickets cost C$ 1,123 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is C$ 1,674 and C$ 1,667 respectively.

Can I save money by flying with a layover from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of C$ 1,394, prices are generally cheapest when you fly direct.

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

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 Bangkok Suvarnabhumi 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 London Heathrow Airport to Bangkok Suvarnabhumi Airport, you should book around 6 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Expert advice

Expert advice for your flight from London to Bangkok

 
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.
Airports
LHR

Heathrow's security lines can be long. Arrive two hours early for carry-on, more if checking bags, especially during peak times.

BKK

For a smooth arrival at BKK, use the Airport Rail Link for a cheap and regular connection to central Bangkok.

Our travel experts
Duncan Madden

Duncan Madden

Expert on BKK and LHR

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more

Good to know

Low seasonJune
Cheapest flightC$ 559
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (29% more expensive on average)
Flight from London to Bangkok

When to book flights from London to Bangkok

Are your dates flexible? Find out the best times to travel from London to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 London to Bangkok flights

  • Can I book a direct flight from London Heathrow (LHR) to Bangkok Suvarnabhumi International Airport (BKK)?

    Thailand’s national airline, Thai Airways and the Taiwanese EVA Air both operate direct flights from LHR to BKK throughout the week. The airline operates out of London Heathrow. There are other, connecting flights operated out of LHR by airlines such as Swiss Air, KLM Royal Dutch Airlines and Lufthansa that may provide more flexibility.

  • Is it possible to exchange currency on arrival into Bangkok Suvarnabhumi International Airport?

    Yes, it is possible. There are currency exchange bureaus, operated by Siam Commercial Bank and Kasikorn Bank, that are located in the Arrivals hall on the second floor and the Meet and Greet area on the third floor of the Main Terminal building. These exchange kiosks are open 24/7. Alternatively, there are non-bank exchange booths that are located next to the Aerolink train platform and these are open from around 06:00 to 00:00.

  • Is there an airport hotel at BKK?

    If your flight from London to Bangkok arrives late in the evening or has been delayed you could always book into the Novotel Suvarnabhumi Airport Hotel, which is located a 3-minute walk from the main airport terminal and can be accessed via an underground walkway. Staying here will save on navigating the traffic into the city at night.

  • How do I get from Bangkok Suvarnabhumi International Airport into the city and beyond?

    There is an Airport Rail Link train into the city which avoids the traffic on the roads. This service costs between ฿15 (around £0.37) and ฿45 (around £1) depending on the length of the journey. The journey into the city will take around 30min. Alternatively you can take advantage of the airport taxi service, booking a taxi at the desk in Terminal 1 before joining the queue for the next available car. This service is slightly more expensive and will be in the region of about ฿240 (around £6).

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport was C$ 559 for a one-way ticket and C$ 820 for a round-trip.

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

    On your way to Bangkok, you’ll fly out from London Heathrow. You’ll be landing at Bangkok Suvarnabhumi.

  • Which airlines offer Wi-Fi service onboard planes from London to Bangkok?

    Only SWISS offers inflight Wi-Fi service on the London to Bangkok flight route.

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

    The Boeing 777-300ER is the aircraft model that flies most regularly on the London to Bangkok flight route.

  • Which airline alliances offer flights from London to Bangkok?

    Star Alliance is the only airline alliance operating flights between London and Bangkok.

  • On which days can I fly direct from London to Bangkok?

    There are direct flights from London to Bangkok on a daily basis.

  • Which is the best airline for flights from London to Bangkok, EVA Air or Thai Airways?

    The two airlines most popular with KAYAK users for flights from London to Bangkok are EVA Air and Thai Airways. With an average price for the route of C$ 1,335 and an overall rating of 8.5, EVA Air is the most popular choice. Thai Airways is also a great choice for the route, with an average price of C$ 1,542 and an overall rating of 7.8.

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

    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 to Bangkok.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bangkok with an airline and back to London with another airline.

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

    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 Bangkok from London 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 London Heathrow Airport to Bangkok Suvarnabhumi Airport

  • The quickest way to get to London Heathrow (LHR) to catch your flight to Bangkok is to use the dedicated Heathrow Express that runs every 15 minutes from London Paddington Station. The journey will take 15min and the cost of tickets starts at around £5.50.
  • If you have to finish off that last piece of work before your flight don’t worry, London Heathrow has Plaza Premium lounges in Level 4, Terminal 2 Departures where you can pay around £30 to enter and then take advantage of the private work pods and Wi-Fi, allowing you to concentrate on sending out those last few emails.
  • For those who need food upon arrival of your flight from LHR to BKK, head to the third floor of the Main Terminal of Bangkok Suvarnabhumi International Airport, which is open to the public, and where there are several restaurants (China Town) and coffee shops (Café Nero and Bakey Chic) where you can grab a bite to eat while you go to your hotel.
  • Travelling with kids – LHR terminals have dedicated play places for the little ones. In T2 these are located in the main terminal departure lounge not far from Gate 16 while in T4 you can find these near gates 1-6. Terminal 5A, near gate A7 also has a Stay and Play area for kids. If you are travelling from T2 on Thai Airways, this recently refurbished terminal has some outstanding views of the airfield where the kids can enjoy the plane activity.
  • Bangkok Suvarnabhumi International Airport acts as the main hub for Thai Airways and the regional carriers THAI Smile and Bangkok Airways so you will easily be able to change from your international to a regional or domestic flight to visit other parts of the country. The domestic terminal of BKK is in the same building as the international terminal, which makes it even easier to change.

Prefer to fly direct from London to Bangkok?

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

Direct departures

London Heathrow to Bangkok Suvarnabhumi

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 nonstop flights

Direct returns

Bangkok Suvarnabhumi 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 nonstop flights

Reviews of the top airlines flying from London to Bangkok

 
See real verified KAYAK customer reviews for airlines flying from London to Bangkok. 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 London to Bangkok? 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 1297 reviews
8.4Boarding
8.0Entertainment
8.3Comfort
8.6Crew
8.1Food
Airline reviews

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

10.0 ExcellentWalter, Nov 2025
TPE - BKK
Read more EVA Air reviews

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

The crew very accommodating and food too is good. Keep up the good work

The EVA air staff at Narita did a terrible job with signage and communication. Despite getting to the airport hours before, they had me queue in line and did not communicate that passengers for Kaohsiung need to step out of line to go to a different line. If you put the flight number at the front of the line, people will think that’s their line. If your staff walk silently down the line with a sign of the flight number, how are we supposed to know you want us to follow unless you speak or write that? I even asked the staff with this sign when we could check our bags and they assumed I was on the later flight to Taipei. Later, Wl only 30 minutes remaining I called for help, and the staff looked at me like I was in the wrong. I had to rush through security and customs and had no time to eat or buy a gift. I’m deeply disappointed in the way they handled it, and it caused unnecessary stress on my vacation.

Very good service and food. Crew was professional and helpful. Cabin and restrooms were kept clean

Flight Attendants could have been nicer and food portions could be bigger.

Excellent service from check in to boarding the crew is so pleasant to asked

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. Oh and the seats were more comfortable, had more ability to lean and the headrest was much better for flight sleeping. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

First time traveling with EVA.. great experience in economy class... Personnel very friendly..

seats are pitched well. you don't feel too tight.

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.

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

Information on your arrival and departure airports