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Cheap flights from London Heathrow Airport to Bangkok from C$ 617

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Bangkok departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Bangkok

Cheap round-trip flights

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$ 836Shenzhen Airlines
Find Deal
Sun, 2 Nov - Sat, 29 Nov
Shenzhen Airlines Logo
9:10 p.m. - 6:30 p.m.LHR-BKK
38h 20m1 stop
Shenzhen Airlines Logo
7:30 p.m. - 7:10 p.m.BKK-LHR
30h 40m1 stop
C$ 837Shenzhen Airlines
Find Deal
Fri, 7 Nov - Sun, 30 Nov
Shenzhen Airlines Logo
10:05 p.m. - 2:15 a.m.LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
12:10 p.m. - 7:10 p.m.BKK-LHR
38h 00m1 stop
C$ 878Shenzhen Airlines
Find Deal
Fri, 26 Sep - Tue, 11 Nov
Logo
4:40 p.m. - 2:50 p.m.LHR-BKK
15h 10m1 stop
Logo
2:00 p.m. - 9:40 p.m.BKK-LHR
14h 40m1 stop
C$ 883
Find Deal
Sun, 8 Mar - Mon, 23 Mar
Austrian Airlines Logo
9:05 a.m. - 12:20 p.m.LHR-BKK
20h 15m1 stop
Austrian Airlines Logo
11:50 p.m. - 8:20 a.m.BKK-LHR
15h 30m1 stop
C$ 886Austrian Airlines
Find Deal
Fri, 6 Mar - Wed, 18 Mar
Logo
7:25 p.m. - 3:30 p.m.LHR-BKK
13h 05m1 stop
Logo
11:30 p.m. - 10:25 a.m.BKK-LHR
17h 55m1 stop
C$ 890
Find Deal
Sun, 25 Jan - Wed, 18 Feb
Austrian Airlines Logo
1:55 p.m. - 3:30 p.m.LHR-BKK
18h 35m1 stop
Austrian Airlines Logo
2:00 p.m. - 9:40 p.m.BKK-LHR
14h 40m1 stop
C$ 891Austrian Airlines
Find Deal
Sun, 8 Feb - Mon, 16 Feb
Etihad Airways Logo
2:45 p.m. - 11:55 p.m.LHR-BKK
27h 10m1 stop
Etihad Airways Logo
2:55 a.m. - 2:30 p.m.BKK-LHR
18h 35m1 stop
C$ 940Etihad Airways
Find Deal
Mon, 29 Sep - Wed, 5 Nov
Etihad Airways Logo
1:55 p.m. - 11:20 p.m.LHR-BKK
26h 25m1 stop
Etihad Airways Logo
2:55 a.m. - 2:30 p.m.BKK-LHR
18h 35m1 stop
C$ 943Etihad Airways
Find Deal
Thu, 13 Nov - Mon, 9 Mar
Kuwait Airways Logo
10:45 a.m. - 10:05 a.m.LHR-BKK
16h 20m1 stop
Kuwait Airways Logo
3:00 a.m. - 1:45 p.m.BKK-LHR
17h 45m1 stop
C$ 997Kuwait Airways
Find Deal
Fri, 27 Feb - Tue, 17 Mar

Shenzhen Airlines flights from London Heathrow Airport to Bangkok

Our best Shenzhen Airlines deals on London Heathrow Airport to Bangkok flight tickets
Shenzhen Airlines
2 Nov
LHR9:10 p.m.London Heathrow
31h 00m
1 stop
BKK11:10 a.m.Bangkok Suvarnabhumi
29 Nov
BKK3:15 a.m.Bangkok Suvarnabhumi
22h 55m
1 stop
LHR7:10 p.m.London Heathrow
C$ 836
Find similar
Shenzhen Airlines
7 Nov
LHR9:10 p.m.London Heathrow
38h 20m
1 stop
BKK6:30 p.m.Bangkok Suvarnabhumi
30 Nov
BKK7:30 p.m.Bangkok Suvarnabhumi
30h 40m
1 stop
LHR7:10 p.m.London Heathrow
C$ 837
Find similar
Shenzhen Airlines
26 Sep
LHR10:05 p.m.London Heathrow
22h 10m
1 stop
BKK2:15 a.m.Bangkok Suvarnabhumi
11 Nov
BKK12:10 p.m.Bangkok Suvarnabhumi
38h 00m
1 stop
LHR7:10 p.m.London Heathrow
C$ 878
Find similar

Etihad Airways flights from London Heathrow Airport to Bangkok

Our best Etihad Airways deals on London Heathrow Airport to Bangkok flight tickets
Etihad Airways
29 Sep
LHR2:45 p.m.London Heathrow
27h 10m
1 stop
BKK11:55 p.m.Bangkok Suvarnabhumi
5 Nov
BKK2:55 a.m.Bangkok Suvarnabhumi
18h 35m
1 stop
LHR2:30 p.m.London Heathrow
C$ 940
Find similar
Etihad Airways
13 Nov
LHR1:55 p.m.London Heathrow
26h 25m
1 stop
BKK11:20 p.m.Bangkok Suvarnabhumi
9 Mar
BKK2:55 a.m.Bangkok Suvarnabhumi
18h 35m
1 stop
LHR2:30 p.m.London Heathrow
C$ 943
Find similar
Etihad Airways
24 Feb
LHR1:55 p.m.London Heathrow
26h 25m
1 stop
BKK11:20 p.m.Bangkok Suvarnabhumi
9 Mar
BKK2:55 a.m.Bangkok Suvarnabhumi
18h 35m
1 stop
LHR2:30 p.m.London Heathrow
C$ 944
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Bangkok that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 15 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 2/11

9:10 p.m.-11:10 a.m.

1 stop31h 00m

Bangkok Suvarnabhumi

Sat 29/11

3:15 a.m.-7:10 p.m.

1 stop22h 55m

C$ 836

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 7/11

9:10 p.m.-6:30 p.m.

1 stop38h 20m

Bangkok Suvarnabhumi

Sun 30/11

7:30 p.m.-7:10 p.m.

1 stop30h 40m

C$ 837

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 26/9

10:05 p.m.-2:15 a.m.

1 stop22h 10m

Bangkok Suvarnabhumi

Tue 11/11

12:10 p.m.-7:10 p.m.

1 stop38h 00m

C$ 878

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 8/3

4:40 p.m.-2:50 p.m.

1 stop15h 10m

Bangkok Suvarnabhumi

Mon 23/3

2:00 p.m.-9:40 p.m.

1 stop14h 40m

C$ 883

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 6/3

9:05 a.m.-12:20 p.m.

1 stop20h 15m

Bangkok Suvarnabhumi

Wed 18/3

11:50 p.m.-8:20 a.m.

1 stop15h 30m

C$ 886

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 25/1

7:25 p.m.-3:30 p.m.

1 stop13h 05m

Bangkok Suvarnabhumi

Wed 18/2

11:30 p.m.-10:25 a.m.

1 stop17h 55m

C$ 890

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 8/2

1:55 p.m.-3:30 p.m.

1 stop18h 35m

Bangkok Suvarnabhumi

Mon 16/2

2:00 p.m.-9:40 p.m.

1 stop14h 40m

C$ 891

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 29/9

2:45 p.m.-11:55 p.m.

1 stop27h 10m

Bangkok Suvarnabhumi

Wed 5/11

2:55 a.m.-2:30 p.m.

1 stop18h 35m

C$ 940

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 13/11

1:55 p.m.-11:20 p.m.

1 stop26h 25m

Bangkok Suvarnabhumi

Mon 9/3

2:55 a.m.-2:30 p.m.

1 stop18h 35m

C$ 943

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 27/2

10:45 a.m.-10:05 a.m.

1 stop16h 20m

Bangkok Suvarnabhumi

Tue 17/3

3:00 a.m.-1:45 p.m.

1 stop17h 45m

C$ 997

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bangkok from

How to get the cheapest flight ticket from London Heathrow Airport to Bangkok

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and Bangkok?

What is the cheapest month to fly to Bangkok?

The cheapest month to fly to Bangkok from London Heathrow Airport is in May. Flight prices, which tend to average around C$ 1,143, are often lower during this time because this is during the off-season. If you don’t want to visit Bangkok in May, then you should wait until June to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of C$ 1,152.

What is the cheapest day to depart on your flight to Bangkok?

Our data shows that Wednesday is the least expensive day to fly to Bangkok. Tickets to fly out on this day can be as low as C$ 1,085. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around C$ 1,798. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bangkok.

What is the cheapest time of day to depart on your flight to Bangkok?

In the afternoon is the cheapest time of day to fly from London Heathrow Airport to Bangkok when you can find flight prices for as low as C$ 1,000. Flying to Bangkok in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Bangkok is in the morning when prices are around C$ 1,527.

What is the cheapest London Heathrow to Bangkok flight route?

Fly from London Heathrow to Bangkok Suvarnabhumi for the best London Heathrow - Bangkok flight prices

How far in advance should I book a flight to Bangkok?

You are more likely to see cheaper flights to Bangkok from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around C$ 1,308 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from London Heathrow Airport for as low as C$ 1,204 on momondo.

What cabin class options are available on London Heathrow to Bangkok flights?

There are 3 cabin classes available to choose from on London Heathrow to Bangkok flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap London Heathrow Airport to Bangkok flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Bangkok

Fastest flight time

11h 25m

Direct flights

Every day

Airports in Bangkok

1 airport
The fastest flight from London Heathrow Airport to Bangkok takes 11h 25m
Direct flights go from London Heathrow Airport to Bangkok every day.
There is 1 airport near Bangkok: Bangkok Suvarnabhumi (BKK)
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  • How far is London Heathrow to Bangkok by plane?

    Bangkok is 9549.9 km away from London Heathrow. A reasonable flight in good conditions will take 13h 05m.

  • When did momondo last update prices for flights from London Heathrow Airport to Bangkok?

    Prices for flights from London Heathrow Airport to Bangkok refresh daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Bangkok?

  • How old do you have to be to fly from London Heathrow Airport to Bangkok?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Bangkok.

  • What documentation or ID do you need to fly to Bangkok?

    The travel and health documents required for your trip to Bangkok can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bangkok. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from London Heathrow Airport to Bangkok

Compare and see reviews for airlines that fly from London Heathrow Airport to Bangkok with momondo
Airline
Rating
Free Cancellation
Price
Thai AirwaysPriceFrom C$ 745Free CancellationRating
7.8
350 reviews
Search Thai Airways flights
EVA AirPriceFrom C$ 1,251Free CancellationRating
8.4
1,236 reviews
Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Bangkok?

It is quick and easy to find London to Bangkok flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bangkok that suits you.

Can I find flights from London to Bangkok with flexible booking policies on momondo?

momondo does allow users to show only those flights to Bangkok from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Bangkok?

momondo helps you find the best flight between London and Bangkok by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Bangkok right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bangkok, momondo offers a useful price alert feature which will track prices for flights to Bangkok from London and alert you when they change.

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Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 24.8 km from Bangkok
Bangkok Suvarnabhumi Airport
Bangkok Don Mueang Intl Airport