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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.
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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 Suvarnabhumi Airport

Our best Shenzhen Airlines deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport 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 Suvarnabhumi Airport

Our best Air India deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport 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 Suvarnabhumi Airport 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 Suvarnabhumi Airport 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.

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See travel insights to Bangkok from

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

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 Suvarnabhumi Airport?

In general, September is the cheapest month to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 1,123. If you’re not able to fly to Bangkok Suvarnabhumi Airport in September, then May is your next best option. Flight prices from London Heathrow Airport to Bangkok Suvarnabhumi Airport during May average around C$ 1,136.

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

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Wednesday when prices can be found for as low as C$ 1,079. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Bangkok Suvarnabhumi Airport for around C$ 1,574.

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

Our data shows that the cheapest London Heathrow Airport to Bangkok Suvarnabhumi Airport flights are usually those with departure times in the afternoon. Our users have found flights to Bangkok Suvarnabhumi Airport in the afternoon for as low as C$ 984. In the morning is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around C$ 1,509 per ticket.

What is the cheapest London Heathrow to Bangkok Suvarnabhumi flight route?

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

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

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport 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 Suvarnabhumi Airport from London Heathrow Airport for as low as C$ 1,206 on momondo.

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

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

How have London Heathrow Airport to Bangkok Suvarnabhumi Airport flight prices changed over time?

As of December 2025, prices for London Heathrow Airport to Bangkok Suvarnabhumi Airport flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to Bangkok Suvarnabhumi Airport (LHR to BKK) flight deals and tips

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

Fastest flight time

11h 40m

Direct flights

Every day
The fastest flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport takes 11h 40m
Direct flights go from London Heathrow Airport to Bangkok Suvarnabhumi Airport every day.
Search flight deals

  • How far is London Heathrow to Bangkok Suvarnabhumi by plane?

    Bangkok Suvarnabhumi is 9570.2 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 Suvarnabhumi Airport?

    Prices for flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Bangkok Suvarnabhumi Airport.

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

    The required travel and health documents for your Bangkok Suvarnabhumi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bangkok Suvarnabhumi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

  • What is the most popular airline from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Best airlines flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport 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

  • EVA Air Flights From London Heathrow Airport to Bangkok Suvarnabhumi Airport

    The lowest priced EVA Air flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport from the last 72 hours was C$ 1,244. Generally, EVA Air has 14 flights on this route every week with an average price of C$ 1,335. EVA Air is rated 8.5/10 by our users.

  • Thai Airways Flights From London Heathrow Airport to Bangkok Suvarnabhumi Airport

    The best Thai Airways deal for London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets found on momondo in the last 72 hours was C$ 741, round-trip. It should be noted that an average Thai Airways flight deal for this route in this time was higher, at C$ 1,542 round-trip. Thai Airways operates 21 flights out of London Heathrow Airport into Bangkok Suvarnabhumi Airport in an average week, so prices vary by time and availability. 366 Thai Airways reviews by users on momondo have scored the airline at 7.8/10.

Travelling to a place near Bangkok?

Book flights to Bangkok if you plan to visit one of these locations
Pattaya
Ko Samet
Ko Lan
Chonburi
Cha-am
Kanchanaburi

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Bangkok for you.

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

Yes. momondo enables you to select and highlight flights to Bangkok from London with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Bangkok.

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

Price alerts on flights to Bangkok from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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