LHR - DMK

£305 Find Cheap Flights from London Heathrow Airport to Bangkok Don Mueang Intl – Compare and Save

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 1/10. 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

Save 26% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return fare
£643
Typical prices: £670-£810
Multiple Airlines
di 1/9do 1/10
LHR - DMK • 2 stops
Cheapest one-way flight
£305
Multiple Airlines
do 1/10
LHR - DMK • 3 stops
Direct flights
Not available
There are currently no direct flights between Heathrow and Don Mueang Intl. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Shanghai (PVG)
Cheapest • Avg £432 (return)
Doha (DOH)
Shortest trip • 14h 55m (one-way)
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 100% price drop
October
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

di, 1 sep. - do, 1 okt.
Multiple Airlines Logo
21:20 - 16:05
LHR
-
DMK
36h 45m
2 stops
Multiple Airlines Logo
20:50 - 10:15
DMK
-
LHR
19h 25m
1 stop
£643Multiple Airlines
wo, 23 sep. - di, 13 okt.
Multiple Airlines Logo
21:20 - 09:10
LHR
-
DMK
29h 50m
2 stops
Multiple Airlines Logo
20:50 - 10:15
DMK
-
LHR
19h 25m
1 stop
£652Multiple Airlines
do, 1 okt. - za, 31 okt.
Multiple Airlines Logo
22:10 - 04:45
LHR
-
DMK
24h 35m
1 stop
Multiple Airlines Logo
06:25 - 08:55
DMK
-
LHR
33h 30m
2 stops
£654Multiple Airlines
di, 1 sep. - wo, 30 sep.
Multiple Airlines Logo
21:45 - 02:40
LHR
-
DMK
22h 55m
1 stop
Multiple Airlines Logo
16:45 - 07:30
DMK
-
LHR
20h 45m
1 stop
£655Multiple Airlines
ma, 7 sep. - wo, 30 sep.
Multiple Airlines Logo
22:40 - 00:05
LHR
-
DMK
19h 25m
2 stops
Multiple Airlines Logo
20:50 - 11:30
DMK
-
LHR
20h 40m
1 stop
£656Multiple Airlines
wo, 9 sep. - wo, 21 okt.
Emirates Logo
09:05 - 12:30
LHR
-
DMK
21h 25m
1 stop
Emirates Logo
23:50 - 12:25
DMK
-
LHR
18h 35m
1 stop
£656Emirates
ma, 24 aug. - zo, 11 okt.
Multiple Airlines Logo
22:40 - 00:05
LHR
-
DMK
19h 25m
2 stops
Multiple Airlines Logo
20:50 - 10:15
DMK
-
LHR
19h 25m
1 stop
£657Multiple Airlines
do, 27 aug. - di, 8 sep.
Multiple Airlines Logo
14:45 - 15:55
LHR
-
DMK
19h 10m
2 stops
Multiple Airlines Logo
06:30 - 18:45
DMK
-
LHR
18h 15m
2 stops
£658Multiple Airlines
ma, 21 sep. - ma, 5 okt.
Emirates Logo
09:05 - 11:10
LHR
-
DMK
20h 05m
1 stop
Emirates Logo
23:50 - 20:15
DMK
-
LHR
26h 25m
1 stop
£659Emirates
zo, 23 aug. - zo, 11 okt.
Multiple Airlines Logo
22:40 - 00:05
LHR
-
DMK
19h 25m
2 stops
Multiple Airlines Logo
20:50 - 10:15
DMK
-
LHR
19h 25m
1 stop
£661Multiple 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 August, where tickets cost £0 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £910 and £812 respectively.

Find deals

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

Low season

February

Cheapest flight

£305
Best time to beat the crowds (42% less expensive on average)
Most popular time to fly (15% more expensive 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 5 days, the lowest price for a flight from London Heathrow Airport to Bangkok Don Mueang Intl Airport was £305 for a one-way ticket and £643 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.

  • 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 airline 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.
8.1
EmiratesOverall score based on 3629 reviews
8.1Boarding
8.0Comfort
8.2Entertainment
8.4Crew
7.9Food
Airline reviews

The quality of food is going down comparing with old history of excellent food. It was cold and a bad quality. The crew is always excellent and caring.

8.0 ExcellentYaqoob, Jun 2026
LHR - DXB
Read more Emirates reviews

The quality of food is going down comparing with old history of excellent food. It was cold and a bad quality. The crew is always excellent and caring.

Great flight - Clubhouse met our needs, and the staff provided good service. Boarding felt a little chaotic, but given the size of the aircraft, it's always going to be challenging. Whilst the crew were friendly, the number of passengers meant that we received our breakfast items, but had finished breakfast before we were served a drink. Lunch was much better organised, and throughout the flight, the crew were attentive. Found the seats and ICE to be excellent. Disembarkation was fine, and everything possible to expedite the process was being done.

The seating is spaced out nicely, The crew could have offer more drinks.

Excellent comfort and entertainment. Service poor..Food average with little choice.

Comfort good. Service as usual poor. Cabin temperature as usual too cold, about 15 degrees

Fresh energetic and friendly crew, great food, brand new plane and non stop entertainment

The boarding experience was worst ever. Single aerobridge used for boarding and deboarding which led to lot of chaos. Food options were not great. First flight delayed by more than 3 hours which led to missing of the next flight we were stuck at Dubai airport by more than 6 hours

Superb check in, lounge, boarding and flight experience. On time departure and before time arrival. Couldn’t have asked for more

Flights were both delayed. No luggage on arrival for the whole plane and no contact since submitting a PIR.

They had superb boarding (started an hour before flight time). Timely pushback from them gate and an early arrival. Flight and service was very comfortable. I wanted to move my flight to an earlier one, only thing was there was no one at emirates in Heathrow to help. Had to call the call the center and pay to change. There were ample seats on the flight though

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

Information on your arrival and departure airports

London Heathrow Airport (LHR)
Don Mueang Intl (DMK)