£627 Cheap Flights from London (LHR) to Bangkok (DMK)

View £627 flight on Thu, 14 May 2026Opens in a new window

Flight 1

Popular airlines from Heathrow Airport (LHR) to Don Mueang Intl. Airport (DMK)

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Cheap Flights from London (LHR) to Bangkok (DMK)

Prices were available within the past 7 days and start at £627 for one-way flights and £704 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Emirates
Wed, 27 Jan - Tue, 16 Feb
LHR
London
DMK
Bangkok
£704 Return, just found
£704
Return
just found
Select Emirates flight, departing Wed, 27 Jan from London to Bangkok, returning Tue, 16 Feb, priced at £704 just found
Emirates
Wed, 1 Jul - Wed, 15 Jul
LHR
London
DMK
Bangkok
£708 Return, just found
£708
Return
just found
Select Emirates flight, departing Wed, 1 Jul from London to Bangkok, returning Wed, 15 Jul, priced at £708 just found
Emirates
Mon, 29 Jun - Thu, 30 Jul
LHR
London
DMK
Bangkok
£713 Return, found 7 hours ago
£713
Return
found 7 hours ago
Select Emirates flight, departing Mon, 29 Jun from London to Bangkok, returning Thu, 30 Jul, priced at £713 found 7 hours ago
Emirates
Wed, 30 Sept - Tue, 20 Oct
LHR
London
DMK
Bangkok
£718 Return, found 1 day ago
£718
Return
found 1 day ago
Select Emirates flight, departing Wed, 30 Sept from London to Bangkok, returning Tue, 20 Oct, priced at £718 found 1 day ago
Emirates
Mon, 14 Sept - Tue, 29 Sept
LHR
London
DMK
Bangkok
£719 Return, just found
£719
Return
just found
Select Emirates flight, departing Mon, 14 Sept from London to Bangkok, returning Tue, 29 Sept, priced at £719 just found
Emirates
Sun, 4 Oct - Tue, 17 Nov
LHR
London
DMK
Bangkok
£722 Return, found 6 days ago
£722
Return
found 6 days ago
Select Emirates flight, departing Sun, 4 Oct from London to Bangkok, returning Tue, 17 Nov, priced at £722 found 6 days ago
Emirates
Mon, 14 Sept - Tue, 29 Sept
LHR
London
DMK
Bangkok
£723 Return, just found
£723
Return
just found
Select Emirates flight, departing Mon, 14 Sept from London to Bangkok, returning Tue, 29 Sept, priced at £723 just found
Emirates
Mon, 14 Sept - Mon, 21 Sept
LHR
London
DMK
Bangkok
£723 Return, just found
£723
Return
just found
Select Emirates flight, departing Mon, 14 Sept from London to Bangkok, returning Mon, 21 Sept, priced at £723 just found
Emirates
Thu, 10 Sept - Thu, 24 Sept
LHR
London
DMK
Bangkok
£724 Return, just found
£724
Return
just found
Select Emirates flight, departing Thu, 10 Sept from London to Bangkok, returning Thu, 24 Sept, priced at £724 just found
Emirates
Wed, 1 Jul - Tue, 28 Jul
LHR
London
DMK
Bangkok
£726 Return, just found
£726
Return
just found
Select Emirates flight, departing Wed, 1 Jul from London to Bangkok, returning Tue, 28 Jul, priced at £726 just found

Alternative airports near Bangkok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Suvarnabhumi Intl. BKK. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from £640
BKK
Suvarnabhumi Intl.
Cheapest
Average driving time to city centre23 min
Flights from £640

Frequently asked questions

How do I find cheap flights from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.)?
To find a cheap flight from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.)?
There are approximately 10 connecting flights per day from London (LHR-Heathrow) (LHR) to Bangkok (DMK-Don Mueang Intl.) (DMK). Some common connection points include Dubai Intl. (DXB), Abu Dhabi Intl. (AUH), and Kuala Lumpur Intl. (KUL).
What is the earliest flight from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from LHR to DMK. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.)?
Flights from LHR to DMK with one stop typically take around 23 hours 50 minutes, covering approximately 5,932 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.)?
Select the "Business class" and "First class" filters when looking for LHR to DMK flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.) flight with Expedia?
It's easy to earn miles on a London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Bangkok from Heathrow (LHR)?
From Heathrow (LHR), you can fly directly into Suvarnabhumi Intl. (BKK) to reach Bangkok. Some flights may connect through major hubs like Frankfurt Intl. (FRA), ZRH (ZRH), Franz Josef Strauss Intl. (MUC) before reaching Bangkok. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.) at the last minute?
Typically, booking a last minute flight from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.) flight and hotel package?
Securing a London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.)?
If you booked your London (LHR-Heathrow) to Bangkok (DMK-Don Mueang Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Heathrow
Destination airport
Don Mueang Intl.
Airlines serving
Emirates
Return price
£703
Distance
9490 km

Book with confidence

Compare flights from London to Bangkok easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Bangkok. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Don Mueang Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Don Mueang Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Don Mueang Intl. (DMK)

The easiest way to view the best deals on flights from London to Bangkok today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Don Mueang Intl. start at just £704 and range up to £726.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Bangkok
  • booking your flight during January, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Bangkok flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Don Mueang Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from London to Bangkok easily and book with confidence

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