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Cheap flights from London Heathrow Airport to Bangkok from C$ 454

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 14/9. 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
10:05 p.m. - 2:15 a.m.LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
7:30 p.m. - 7:50 p.m.BKK-LHR
30h 20m1 stop
C$ 661Shenzhen Airlines
Find Deal
Sun, 14 Sep - Sun, 19 Oct
Shenzhen Airlines Logo
10:05 p.m. - 2:15 a.m.LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 7:50 p.m.BKK-LHR
22h 35m1 stop
C$ 662Shenzhen Airlines
Find Deal
Fri, 19 Sep - Sun, 28 Sep
Shenzhen Airlines Logo
10:05 p.m. - 11:10 a.m.LHR-BKK
31h 05m1 stop
Shenzhen Airlines Logo
7:30 p.m. - 7:10 p.m.BKK-LHR
30h 40m1 stop
C$ 665Shenzhen Airlines
Find Deal
Sat, 13 Sep - Sat, 6 Dec
Shenzhen Airlines Logo
10:05 p.m. - 2:15 a.m.LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 8:00 p.m.BKK-LHR
22h 45m1 stop
C$ 741Shenzhen Airlines
Find Deal
Mon, 15 Sep - Tue, 14 Oct
Shenzhen Airlines Logo
9:10 p.m. - 2:15 a.m.LHR-BKK
22h 05m1 stop
Shenzhen Airlines Logo
7:30 p.m. - 7:10 p.m.BKK-LHR
30h 40m1 stop
C$ 818Shenzhen Airlines
Find Deal
Sat, 22 Nov - Sat, 6 Dec
China Eastern Logo
9:00 p.m. - 2:55 p.m.LHR-BKK
34h 55m2 stops
China Eastern Logo
1:35 p.m. - 5:30 p.m.BKK-LHR
34h 55m1 stop
C$ 866China Eastern
Find Deal
Thu, 20 Nov - Fri, 12 Dec
Hainan Airlines Logo
10:00 p.m. - 10:00 a.m.LHR-BKK
30h 00m2 stops
Hainan Airlines Logo
11:05 a.m. - 7:30 p.m.BKK-LHR
38h 25m2 stops
C$ 870Hainan Airlines
Find Deal
Mon, 22 Sep - Thu, 2 Oct
Air China Logo
5:40 p.m. - 6:05 p.m.LHR-BKK
17h 25m1 stop
Air China Logo
1:30 a.m. - 5:50 p.m.BKK-LHR
23h 20m1 stop
C$ 898Air China
Find Deal
Sun, 28 Dec - Sat, 10 Jan
Air India Logo
10:10 p.m. - 7:35 p.m.LHR-BKK
15h 25m1 stop
Air India Logo
8:50 p.m. - 11:30 a.m.BKK-LHR
20h 40m1 stop
C$ 917Air India
Find Deal
Tue, 23 Sep - Wed, 1 Oct
Air India Logo
9:05 p.m. - 7:35 p.m.LHR-BKK
16h 30m1 stop
Air India Logo
2:45 p.m. - 10:15 a.m.BKK-LHR
25h 30m1 stop
C$ 970Air India
Find Deal
Wed, 24 Sep - Tue, 30 Sep

Shenzhen Airlines flights from London Heathrow Airport to Bangkok

Our best Shenzhen Airlines deals on London Heathrow Airport to Bangkok flight tickets
Shenzhen Airlines
14 Sep
LHR10:05 p.m.London Heathrow
22h 10m
1 stop
BKK2:15 a.m.Bangkok Suvarnabhumi
19 Oct
BKK7:30 p.m.Bangkok Suvarnabhumi
30h 20m
1 stop
LHR7:50 p.m.London Heathrow
C$ 661
Find similar
Shenzhen Airlines
19 Sep
LHR10:05 p.m.London Heathrow
22h 10m
1 stop
BKK2:15 a.m.Bangkok Suvarnabhumi
28 Sep
BKK3:15 a.m.Bangkok Suvarnabhumi
22h 35m
1 stop
LHR7:50 p.m.London Heathrow
C$ 662
Find similar
Shenzhen Airlines
13 Sep
LHR10:05 p.m.London Heathrow
31h 05m
1 stop
BKK11:10 a.m.Bangkok Suvarnabhumi
6 Dec
BKK7:30 p.m.Bangkok Suvarnabhumi
30h 40m
1 stop
LHR7:10 p.m.London Heathrow
C$ 665
Find similar

Austrian Airlines flights from London Heathrow Airport to Bangkok

Our best Austrian Airlines deals on London Heathrow Airport to Bangkok flight tickets
Austrian Airlines
21 Aug
LHR6:00 a.m.London Heathrow
26h 50m
1 stop
BKK2:50 p.m.Bangkok Suvarnabhumi
14 Sep
BKK11:40 p.m.Bangkok Suvarnabhumi
15h 20m
1 stop
LHR9:00 a.m.London Heathrow
C$ 939
Find similar
Austrian Airlines
20 Aug
LHR3:05 p.m.London Heathrow
17h 45m
1 stop
BKK2:50 p.m.Bangkok Suvarnabhumi
14 Sep
BKK11:40 p.m.Bangkok Suvarnabhumi
14h 40m
1 stop
LHR8:20 a.m.London Heathrow
C$ 975
Find similar
Austrian Airlines
25 Aug
LHR6:00 a.m.London Heathrow
26h 50m
1 stop
BKK2:50 p.m.Bangkok Suvarnabhumi
10 Sep
BKK11:40 p.m.Bangkok Suvarnabhumi
15h 05m
1 stop
LHR8:45 a.m.London Heathrow
C$ 979
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 31 July 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 14/9

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

1 stop22h 10m

Bangkok Suvarnabhumi

Sun 19/10

7:30 p.m.-7:50 p.m.

1 stop30h 20m

C$ 661

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 19/9

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

1 stop22h 10m

Bangkok Suvarnabhumi

Sun 28/9

3:15 a.m.-7:50 p.m.

1 stop22h 35m

C$ 662

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 13/9

10:05 p.m.-11:10 a.m.

1 stop31h 05m

Bangkok Suvarnabhumi

Sat 6/12

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

1 stop30h 40m

C$ 665

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 15/9

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

1 stop22h 10m

Bangkok Suvarnabhumi

Tue 14/10

3:15 a.m.-8:00 p.m.

1 stop22h 45m

C$ 741

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 22/11

9:10 p.m.-2:15 a.m.

1 stop22h 05m

Bangkok Suvarnabhumi

Sat 6/12

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

1 stop30h 40m

C$ 818

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 20/11

9:00 p.m.-2:55 p.m.

2 stops34h 55m

Bangkok Suvarnabhumi

Fri 12/12

1:35 p.m.-5:30 p.m.

1 stop34h 55m

C$ 866

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 22/9

10:00 p.m.-10:00 a.m.

2 stops30h 00m

Bangkok Suvarnabhumi

Thu 2/10

11:05 a.m.-7:30 p.m.

2 stops38h 25m

C$ 870

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 28/12

5:40 p.m.-6:05 p.m.

1 stop17h 25m

Bangkok Suvarnabhumi

Sat 10/1

1:30 a.m.-5:50 p.m.

1 stop23h 20m

C$ 898

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 23/9

10:10 p.m.-7:35 p.m.

1 stop15h 25m

Bangkok Suvarnabhumi

Wed 1/10

8:50 p.m.-11:30 a.m.

1 stop20h 40m

C$ 917

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 24/9

9:05 p.m.-7:35 p.m.

1 stop16h 30m

Bangkok Suvarnabhumi

Tue 30/9

2:45 p.m.-10:15 a.m.

1 stop25h 30m

C$ 970

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$ 1,139, 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$ 1,148.

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$ 1,210. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around C$ 1,633. 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$ 996. 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$ 1,520.

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$ 1,303 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$ 1,203 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

Best price found

C$ 454

Fastest flight time

14h 20m

Direct flights

Every day

Airports in Bangkok

1 airport
The best one-way flight to Bangkok from London Heathrow Airport in the past 72 hours is C$ 454. The best round-trip flight deal from London Heathrow Airport to Bangkok found on momondo in the last 72 hours is C$ 661.
The fastest flight from London Heathrow Airport to Bangkok takes 14h 20m
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 14h 20m.

  • 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$ 742Free CancellationRating
7.8
340 reviews
Search Thai Airways flights
EVA AirPriceFrom C$ 1,246Free CancellationRating
8.4
1,220 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