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Cheap flights from London Heathrow Airport to Bangkok from C$ 547

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 30/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from London Heathrow Airport to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
Shenzhen Airlines Logo
9:10 p.m. - 6:30 p.m.
LHR
-
BKK
38h 20m1 stop
Shenzhen Airlines Logo
12:10 p.m. - 7:10 p.m.
BKK
-
LHR
38h 00m1 stop
C$ 821Shenzhen Airlines
Fri, 9 Jan - Sun, 18 Jan
China Southern Logo
10:00 p.m. - 2:05 p.m.
LHR
-
BKK
33h 05m1 stop
China Southern Logo
12:40 p.m. - 4:15 p.m.
BKK
-
LHR
33h 35m2 stops
C$ 833China Southern
Sun, 1 Feb - Sat, 4 Apr
Shenzhen Airlines Logo
9:10 p.m. - 6:30 p.m.
LHR
-
BKK
38h 20m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 7:10 p.m.
BKK
-
LHR
22h 55m1 stop
C$ 889Shenzhen Airlines
Fri, 6 Feb - Tue, 10 Feb
China Eastern Logo
9:00 p.m. - 1:55 a.m.
LHR
-
BKK
21h 55m1 stop
China Eastern Logo
1:35 p.m. - 5:30 p.m.
BKK
-
LHR
34h 55m1 stop
C$ 891China Eastern
Fri, 9 Jan - Fri, 30 Jan
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$ 907Shenzhen Airlines
Sat, 21 Mar - Tue, 24 Mar
Shenzhen Airlines Logo
9:10 p.m. - 11:10 a.m.
LHR
-
BKK
31h 00m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 7:50 p.m.
BKK
-
LHR
22h 35m1 stop
C$ 940Shenzhen Airlines
Wed, 18 Mar - Sun, 5 Apr
Shenzhen Airlines Logo
10:05 p.m. - 11:10 a.m.
LHR
-
BKK
31h 05m1 stop
Shenzhen Airlines Logo
3:15 a.m. - 8:00 p.m.
BKK
-
LHR
22h 45m1 stop
C$ 962Shenzhen Airlines
Fri, 24 Apr - Tue, 12 May
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$ 964Shenzhen Airlines
Fri, 10 Apr - Thu, 7 May
Air India Logo
9:45 p.m. - 8:25 p.m.
LHR
-
BKK
16h 40m1 stop
Air India Logo
10:25 p.m. - 12:05 p.m.
BKK
-
LHR
19h 40m1 stop
C$ 986Air India
Tue, 26 May - Wed, 27 May
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$ 990Shenzhen Airlines
Fri, 20 Mar - Tue, 24 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
9 Jan
LHR9:10 p.m.London Heathrow
38h 20m
1 stop
BKK6:30 p.m.Bangkok Suvarnabhumi
18 Jan
BKK12:10 p.m.Bangkok Suvarnabhumi
38h 00m
1 stop
LHR7:10 p.m.London Heathrow
C$ 820
Find similar
Shenzhen Airlines
6 Feb
LHR9:10 p.m.London Heathrow
38h 20m
1 stop
BKK6:30 p.m.Bangkok Suvarnabhumi
19 Mar
BKK7:30 p.m.Bangkok Suvarnabhumi
30h 40m
1 stop
LHR7:10 p.m.London Heathrow
C$ 889
Find similar
Shenzhen Airlines
21 Mar
LHR9:10 p.m.London Heathrow
31h 00m
1 stop
BKK11:10 a.m.Bangkok Suvarnabhumi
24 Mar
BKK7:30 p.m.Bangkok Suvarnabhumi
30h 40m
1 stop
LHR7:10 p.m.London Heathrow
C$ 907
Find similar

Air India flights from London Heathrow Airport to Bangkok

Our best Air India deals on London Heathrow Airport to Bangkok flight tickets
Air India
26 May
LHR9:45 p.m.London Heathrow
16h 40m
1 stop
BKK8:25 p.m.Bangkok Suvarnabhumi
27 May
BKK10:25 p.m.Bangkok Suvarnabhumi
19h 40m
1 stop
LHR12:05 p.m.London Heathrow
C$ 986
Find similar
Air India
8 May
LHR12:30 p.m.London Heathrow
19h 05m
1 stop
BKK1:35 p.m.Bangkok Suvarnabhumi
29 May
BKK2:45 p.m.Bangkok Suvarnabhumi
25h 30m
1 stop
LHR10:15 a.m.London Heathrow
C$ 1,024
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 16 December 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

Fri 9/1

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

1 stop38h 20m

Bangkok Suvarnabhumi

Sun 18/1

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

1 stop38h 00m

C$ 820

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 1/2

10:00 p.m.-2:05 p.m.

1 stop33h 05m

Bangkok Suvarnabhumi

Sat 4/4

12:40 p.m.-4:15 p.m.

2 stops33h 35m

C$ 833

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 6/2

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

1 stop38h 20m

Bangkok Suvarnabhumi

Tue 10/2

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

1 stop22h 55m

C$ 889

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 9/1

9:00 p.m.-1:55 a.m.

1 stop21h 55m

Bangkok Suvarnabhumi

Fri 30/1

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

1 stop34h 55m

C$ 891

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 21/3

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

1 stop31h 00m

Bangkok Suvarnabhumi

Tue 24/3

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

1 stop22h 55m

C$ 907

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 18/3

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

1 stop31h 00m

Bangkok Suvarnabhumi

Sun 5/4

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

1 stop22h 35m

C$ 940

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 24/4

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

1 stop31h 05m

Bangkok Suvarnabhumi

Tue 12/5

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

1 stop22h 45m

C$ 962

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 10/4

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

1 stop22h 10m

Bangkok Suvarnabhumi

Thu 7/5

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

1 stop22h 45m

C$ 964

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 26/5

9:45 p.m.-8:25 p.m.

1 stop16h 40m

Bangkok Suvarnabhumi

Wed 27/5

10:25 p.m.-12:05 p.m.

1 stop19h 40m

C$ 986

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 20/3

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

1 stop22h 05m

Bangkok Suvarnabhumi

Tue 24/3

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

1 stop30h 40m

C$ 990

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 cheapest month to fly to Bangkok?

The cheapest month to fly to Bangkok from London Heathrow Airport is in September. Flight prices, which tend to average around C$ 1,123, are often lower during this time because this is during the off-season. If you don’t want to visit Bangkok in September, then you should wait until May to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of C$ 1,136.

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$ 1,079. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around C$ 1,574. 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$ 984. 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$ 1,509.

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$ 1,295 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$ 1,206 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 40m

Direct flights

Every day

Airports in Bangkok

2 airports
The fastest flight from London Heathrow Airport to Bangkok takes 11h 40m
Direct flights go from London Heathrow Airport to Bangkok every day.
There are 2 airports in Bangkok. From London Heathrow Airport there are direct flights to Bangkok Suvarnabhumi (BKK).
Search flight deals

  • 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 11h 40m.

  • 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$ 741Free CancellationRating
7.8
366 reviews
Search Thai Airways flights
EVA AirPriceFrom C$ 1,244Free CancellationRating
8.5
1,297 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