LON - DMK

£303 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 13/2. 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 Don Mueang Intl 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
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Flight Deals

Cheap Flights from London to Bangkok (LON-DMK)

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

Wed, 3 Dec - Tue, 16 Dec
Multiple Airlines Logo
13:50 - 04:25LGW-DMK
31h 35m3 stops
Multiple Airlines Logo
06:30 - 08:35DMK-LGW
33h 05m2 stops
£461Multiple Airlines
Find Deal
Tue, 2 Dec - Thu, 11 Dec
Multiple Airlines Logo
13:05 - 04:25LGW-DMK
32h 20m3 stops
Multiple Airlines Logo
18:40 - 23:55DMK-LGW
36h 15m3 stops
£462Multiple Airlines
Find Deal
Wed, 3 Dec - Wed, 17 Dec
Multiple Airlines Logo
13:50 - 04:25LGW-DMK
31h 35m3 stops
Multiple Airlines Logo
07:15 - 23:55DMK-LGW
47h 40m3 stops
£468Multiple Airlines
Find Deal
Sun, 30 Nov - Sat, 13 Dec
Multiple Airlines Logo
06:25 - 13:00LGW-DMK
23h 35m3 stops
Multiple Airlines Logo
18:40 - 23:40DMK-LGW
36h 00m3 stops
£470Multiple Airlines
Find Deal
Sun, 30 Nov - Sat, 20 Dec
Multiple Airlines Logo
06:25 - 13:00LGW-DMK
23h 35m3 stops
Multiple Airlines Logo
17:25 - 23:40DMK-LGW
37h 15m3 stops
£471Multiple Airlines
Find Deal
Tue, 25 Nov - Mon, 15 Dec
Multiple Airlines Logo
13:05 - 04:25LGW-DMK
32h 20m3 stops
Multiple Airlines Logo
17:15 - 23:40DMK-LGW
37h 25m3 stops
£473Multiple Airlines
Find Deal
Wed, 3 Dec - Wed, 17 Dec
Multiple Airlines Logo
14:00 - 04:25LTN-DMK
31h 25m3 stops
Multiple Airlines Logo
19:55 - 14:45DMK-LTN
25h 50m3 stops
£473Multiple Airlines
Find Deal
Tue, 25 Nov - Mon, 22 Dec
Multiple Airlines Logo
13:05 - 04:25LGW-DMK
32h 20m3 stops
Multiple Airlines Logo
17:25 - 23:40DMK-LGW
37h 15m3 stops
£474Multiple Airlines
Find Deal
Tue, 25 Nov - Mon, 22 Dec
Multiple Airlines Logo
14:00 - 04:25LTN-DMK
31h 25m3 stops
Multiple Airlines Logo
17:25 - 23:10DMK-LTN
36h 45m3 stops
£474Multiple Airlines
Find Deal
Wed, 3 Dec - Fri, 19 Dec
Multiple Airlines Logo
13:50 - 04:25LGW-DMK
31h 35m3 stops
Multiple Airlines Logo
17:50 - 23:55DMK-LGW
37h 05m3 stops
£477Multiple Airlines
Find Deal

Everything you should know

When to travel
September
Cheapest • 35% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£461
Multiple Airlines
Wed 3/12Tue 16/12
LGW - DMK • 3 stops
Cheapest one-way flight
£303
Multiple Airlines
Fri 13/2
LGW - DMK • 3 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Bangkok!
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 to Bangkok Don Mueang Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Bangkok Don Mueang Intl 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 to Bangkok Don Mueang Intl Airport is September, where tickets cost £542 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,256 and £1,180 respectively.

Good to know - Cheap tickets from London to Bangkok

Low seasonAugust
Cheapest flight£303
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from London Gatwick Airport 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 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 London to Bangkok flights

  • What is the cheapest flight from London to Bangkok Don Mueang Intl Airport?

    In the last 3 days, the lowest price for a flight from London to Bangkok Don Mueang Intl Airport was £303 for a one-way ticket and £461 for a return.

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

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

  • Which airline alliances offer flights from London to Bangkok?

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

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

    The two airlines most popular with KAYAK users for flights from London to Bangkok are Thai Airways and Cathay Pacific. With an average price for the route of £688 and an overall rating of 7.8, Thai Airways is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of £932 and an overall rating of 7.6.

  • 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 return 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.

Reviews of the top 3 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.
7.8
Thai AirwaysOverall score based on 361 reviews
8.3Crew
7.8Boarding
7.6Comfort
7.3Food
6.9Entertainment
Airline reviews

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.

6.0 GoodPeerapat, Oct 2025KIX - BKK
Read more Thai Airways reviews

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.

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

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

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

Close to excellent. The only problem is when I try to charge my phone on the USB in front of my seat, the battery level is decreasing rather than increasing. Why?

Seats in the absolute back row of the plane even though we booked ages ago :( Crew was awesome though

My connecting flight was canceled or never existed. My stopover went from 1 hour and a half to 10 hours. It was a long day that I wasn't prepared for and it would have been nice to know that ahead of time. Cathay is great though. Great staff, entertainment and food.

I was only given 2 meals, and my screen showed that there were 3 meals. Second meal was 1-2 hours late according to the screen.

Paid a premium a have a shorter transit time in Hong Kong, but Cathay pacific rebooked me and ended up waiting for 10 hrs in Hong Hong airport.

Great. Efficient boarding process with the face recognition. Plenty of cabin space for luggage.

Cabin crew is very helpful and nice, it is another level of service compared to Air Canada

As before, my only problem was not being able to download my boarding passes prior to arrival at the airport. Everything else was perfect.

The only problem I had was not being able to download my boarding passes prior to arriving at the airport. Everything else was perfect.

So so, crew was overly professional and lacks human touch. Equipment is very old, especially the HKG-PVG CX366 flight. That plane along with its decor must have twenty years of history, or at least I had that impression.

Same problem place in the middle so small Im 1,85 m so not good 👍

I am a larger than average person and in my opinion i don't think it's fair to allocate a window seat to anyone who is my size or larger, i was seated between 2 large passengers on a full aircraft. The guy in the window seat also occupied a portion of the middle seat (my seat) which made my experience of flying with etihad very cramped and uncomfortable, i was flying from Abu Dhabi to Bangkok. Had this been a airbus 380 it would have been better as the seats are larger but unfortunately it wasn't so i had to endure the 6+hrs unable to get any rest

Boarding was excellent except they did last call 30 minutes earlier .

second leg was more comfortable. Customer service in Abu Dhabi is okay.

Etihad seems to have a very strict luggage enforcement. I am a very light passenger compared to other passengers which are mainly heavier. I do not understood why airlines enforce the weight restriction so strictly. I was overweight luggage of 1.5kg, but am probably 10+kg lighter than the average passenger. Other airlines are far more accommodating. Poor customer service as far as I am concerned. If weight is such an important issue to an airline they should charge passengers by total amount of body weight plus luggage. To me just ridiculous.

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

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

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

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

Took a long time for boarding. The flight was comfortable.

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