LHR - DMK

£270 Find Cheap Flights from London Heathrow Airport to Bangkok Don Mueang Intl

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Don Mueang Intl departing on 11/3. 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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Everything you should know

Cheapest return fare
£529
Overall average: £636
Multiple Airlines
Thu 5/3Tue 31/3
LHR - DMK • 1 stop
Cheapest one-way flight
£270
Multiple Airlines
Wed 11/3
LHR - DMK • 3 stops
When to travel
November
Cheapest • 38% price drop
March
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 Don Mueang Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Don Mueang Intl (LHR-DMK)

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

Thu, 5 Mar - Tue, 31 Mar
Multiple Airlines Logo
21:35 - 22:35
LHR
-
DMK
18h 00m
1 stop
Multiple Airlines Logo
09:55 - 18:05
DMK
-
LHR
38h 10m
2 stops
£529Multiple Airlines
Thu, 5 Mar - Mon, 16 Mar
Multiple Airlines Logo
21:35 - 04:55
LHR
-
DMK
24h 20m
1 stop
Multiple Airlines Logo
21:10 - 19:30
DMK
-
LHR
29h 20m
1 stop
£531Multiple Airlines
Thu, 5 Mar - Wed, 25 Mar
Multiple Airlines Logo
21:35 - 04:55
LHR
-
DMK
24h 20m
1 stop
Multiple Airlines Logo
16:50 - 11:05
DMK
-
LHR
25h 15m
2 stops
£541Multiple Airlines
Thu, 5 Mar - Mon, 16 Mar
Multiple Airlines Logo
21:35 - 22:35
LHR
-
DMK
18h 00m
1 stop
Multiple Airlines Logo
21:10 - 18:10
DMK
-
LHR
28h 00m
2 stops
£543Multiple Airlines
Thu, 5 Mar - Wed, 6 May
Multiple Airlines Logo
21:35 - 22:35
LHR
-
DMK
18h 00m
1 stop
Multiple Airlines Logo
13:40 - 11:30
DMK
-
LHR
27h 50m
2 stops
£543Multiple Airlines
Thu, 5 Mar - Wed, 22 Apr
Multiple Airlines Logo
21:35 - 04:55
LHR
-
DMK
24h 20m
1 stop
Multiple Airlines Logo
22:30 - 19:30
DMK
-
LHR
27h 00m
2 stops
£546Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Multiple Airlines Logo
17:40 - 22:25
LHR
-
DMK
21h 45m
2 stops
Multiple Airlines Logo
20:55 - 11:05
DMK
-
LHR
21h 10m
1 stop
£549Multiple Airlines
Thu, 5 Mar - Thu, 26 Mar
Multiple Airlines Logo
21:35 - 04:55
LHR
-
DMK
24h 20m
1 stop
Multiple Airlines Logo
20:55 - 11:05
DMK
-
LHR
21h 10m
1 stop
£551Multiple Airlines
Thu, 5 Mar - Wed, 6 May
Multiple Airlines Logo
21:35 - 22:35
LHR
-
DMK
18h 00m
1 stop
Multiple Airlines Logo
13:40 - 11:30
DMK
-
LHR
27h 50m
2 stops
£552Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
17:40 - 22:25
LHR
-
DMK
21h 45m
2 stops
Multiple Airlines Logo
20:55 - 11:05
DMK
-
LHR
21h 10m
1 stop
£552Multiple Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Don Mueang Intl flights

Get data-powered insights and trends into flights from Heathrow to Don Mueang Intl 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 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 Heathrow Airport 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 Heathrow Airport to Bangkok Don Mueang Intl Airport is November, where tickets cost £489 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is £1,329 and £1,127 respectively.

Good to know - Cheap tickets from London Heathrow Airport to Bangkok Don Mueang Intl

Low seasonJuly
Cheapest flight£270
Best time to beat the crowds but there is an average 69% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from London Heathrow Airport to Bangkok Don Mueang Intl

When to book flights from Heathrow to Don Mueang Intl

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

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Bangkok Don Mueang Intl Airport was £270 for a one-way ticket and £529 for a return.

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

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

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

    Star Alliance is the only airline alliance operating flights between London Heathrow Airport and Bangkok Don Mueang Intl.

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

    The two airlines most popular with KAYAK users for flights from London to Bangkok are Thai Airways and Etihad Airways. With an average price for the route of £658 and an overall rating of 7.8, Thai Airways is the most popular choice. Etihad Airways is also a great choice for the route, with an average price of £773 and an overall rating of 7.3.

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

    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 Heathrow Airport to Bangkok Don Mueang Intl.

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

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

    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 Don Mueang Intl with an airline and back to London Heathrow Airport with another airline.

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

    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 Don Mueang Intl from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Heathrow to Don Mueang Intl

 
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 Heathrow to Don Mueang Intl? 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 382 reviews
8.4Crew
7.6Comfort
6.8Entertainment
7.4Food
7.9Boarding
Airline reviews

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

10.0 ExcellentZeb, Dec 2025
BKK - DPS
Read more Thai Airways reviews

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

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

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

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

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

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

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

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).

Ethiad wanted to charge me $1100 for 2 checked bags on a ticket that was $550. Nother the airline or airfare assist was willing to help before arriving at the airport. All parties said it was the other responsibility to help. Never flying ethiad or using kayak again.

Good service. But on flight to Kochi no entertainment except in app. And no working outlets to charge phone.

No entertainment except on app. No outlets working to charge. Good service

Good flight. There were a few issues with the flat bed. It was some technical issues. Otherwise everything was good

Nice crew , clean cabin , food was delayed due to problem with the quantity .

On this flight...fine. The one from India to Abu Dahbi, awful.

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

We have paid premium price for a business class Cabinet and we have received the old 777 with the following apart business class that is not to standard. It was very disappointing and it’s a very bad reputation for a premium airline company. This aeroplane should be the commission from being as a business class. We will pass this knowledge to our colleagues because the quality of business class in Etihad is not consistent and it is a lucky dip that sometimes you’re getting a good aeroplane and sometimes you’re getting their 30 years old aeroplane. The crew of the aeroplane have apologise and said that they hate this aeroplane and they have complained about it multiple times as well. Obviously Etihad is putting the economy in front of the Customer Experience. For the future we will not take this risk anymore and will fly with established company like emirates.

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

Very disappointing #1 - You have to pay extra to use the business lounge, or else you sit in the cold airport for 7 hours and fall sick #2 - Did an awful job with boarding, they turned on the "last call" notice on the monitor made the passengers come running to the gate, once the passengers came close the crew would tell them - hey we are not boarding yet, this included passengers with children also, this was happening all the time, it was pitiful to see #3 - Did not have the courtesy for the passengers in the business class, there is a reasons why people choose business class, because they need to get to work, that means sleep is very important for them, in the business class, the crew members would themselves cause so much noise by closing the door in a loud way, once the crew member does it then the other passengers are also doing it, #4 - the food did not smell good, #5 - The Abu Dhabi airport is small, so not a whole lot to do, especially when the layover is 7+ hours. #6 - Did not provide the slippers with pajamas, #7 - also the pajamas also I had to ask, only after asking it was provided. #8- Asked for an extra pillow because the pillow they provided was not tall enough, the crew member said there was no additional pillow and gave me something like a blanket, I tried my best to use that as a pillow, but my head kept on sliding and that messed up my sleep and did not get deep thorough sleep Overall the airlines did not have an understanding of how to care for the passengers, especially the business class ones. Overall it was a bad experience, I would much rather spend the money with Qatar airways, the experience with Qatar is so much better.

Everything you need to know for your flight from Heathrow to Don Mueang Intl

Information on your arrival and departure airports