Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Bangkok from $408

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 11/11. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
China Southern Logo
10:00 pm - 1:05 amLHR-BKK
20h 05m1 stop
China Southern Logo
7:55 pm - 6:35 pmBKK-LHR
29h 40m1 stop
$604China Southern
Find Deal
Tue, Feb 17 - Tue, Mar 3
Multiple Airlines Logo
9:00 pm - 10:05 amLHR-BKK
30h 05m2 stops
Multiple Airlines Logo
5:25 pm - 4:25 pmBKK-LHR
30h 00m2 stops
$605Multiple Airlines
Find Deal
Fri, Dec 5 - Tue, Dec 9
Air China Logo
9:35 pm - 4:40 pmLHR-BKK
36h 05m1 stop
Air China Logo
1:50 pm - 7:40 pmBKK-LHR
36h 50m1 stop
$607Air China
Find Deal
Sat, Dec 27 - Fri, Jan 23
Air China Logo
5:40 pm - 12:10 amLHR-BKK
23h 30m1 stop
Air China Logo
7:30 pm - 3:55 pmBKK-LHR
27h 25m1 stop
$608Air China
Find Deal
Mon, Nov 17 - Sun, Nov 30
China Southern Logo
10:00 pm - 11:25 amLHR-BKK
30h 25m1 stop
China Southern Logo
6:55 pm - 6:35 pmBKK-LHR
30h 40m1 stop
$609China Southern
Find Deal
Sun, Jan 18 - Tue, Feb 24
SWISS Logo
1:45 pm - 10:45 amLHR-BKK
14h 00m1 stop
SWISS Logo
1:15 pm - 9:40 pmBKK-LHR
15h 25m1 stop
$614SWISS
Find Deal
Fri, Dec 5 - Mon, Dec 22
Shenzhen Airlines Logo
9:10 pm - 2:15 amLHR-BKK
22h 05m1 stop
Shenzhen Airlines Logo
12:10 pm - 7:10 pmBKK-LHR
38h 00m1 stop
$619Shenzhen Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 19
Shenzhen Airlines Logo
9:10 pm - 6:30 pmLHR-BKK
38h 20m1 stop
Shenzhen Airlines Logo
3:15 am - 7:10 pmBKK-LHR
22h 55m1 stop
$622Shenzhen Airlines
Find Deal
Sat, Nov 29 - Fri, Dec 19
SWISS Logo
12:05 pm - 10:45 amLHR-BKK
15h 40m1 stop
SWISS Logo
1:15 pm - 9:40 pmBKK-LHR
15h 25m1 stop
$627SWISS
Find Deal
Fri, Dec 5 - Thu, Dec 11
China Eastern Logo
9:00 pm - 1:55 amLHR-BKK
21h 55m1 stop
China Eastern Logo
1:55 am - 5:30 pmBKK-LHR
22h 35m1 stop
$644China Eastern
Find Deal
Mon, Nov 24 - Fri, Nov 28

Shenzhen Airlines flights from London Heathrow Airport to Bangkok

Our best Shenzhen Airlines deals on London Heathrow Airport to Bangkok flight tickets
Shenzhen Airlines
Nov 28
LHR9:10 pmLondon Heathrow
22h 05m
1 stop
BKK2:15 amBangkok Suvarnabhumi
Dec 19
BKK12:10 pmBangkok Suvarnabhumi
38h 00m
1 stop
LHR7:10 pmLondon Heathrow
$619
Find similar
Shenzhen Airlines
Nov 14
LHR9:10 pmLondon Heathrow
38h 20m
1 stop
BKK6:30 pmBangkok Suvarnabhumi
Nov 29
BKK7:30 pmBangkok Suvarnabhumi
30h 40m
1 stop
LHR7:10 pmLondon Heathrow
$620
Find similar
Shenzhen Airlines
Nov 29
LHR9:10 pmLondon Heathrow
38h 20m
1 stop
BKK6:30 pmBangkok Suvarnabhumi
Dec 19
BKK3:15 amBangkok Suvarnabhumi
22h 55m
1 stop
LHR7:10 pmLondon Heathrow
$622
Find similar

China Southern flights from London Heathrow Airport to Bangkok

Our best China Southern deals on London Heathrow Airport to Bangkok flight tickets
China Southern
Feb 17
LHR10:00 pmLondon Heathrow
20h 05m
1 stop
BKK1:05 amBangkok Suvarnabhumi
Mar 3
BKK7:55 pmBangkok Suvarnabhumi
29h 40m
1 stop
LHR6:35 pmLondon Heathrow
$604
Find similar
China Southern
Jan 18
LHR10:00 pmLondon Heathrow
30h 25m
1 stop
BKK11:25 amBangkok Suvarnabhumi
Feb 24
BKK6:55 pmBangkok Suvarnabhumi
30h 40m
1 stop
LHR6:35 pmLondon Heathrow
$609
Find similar
China Southern
Nov 12
LHR5:15 pmLondon Heathrow
34h 55m
2 stops
BKK11:10 amBangkok Suvarnabhumi
Nov 22
BKK6:05 pmBangkok Suvarnabhumi
31h 30m
1 stop
LHR6:35 pmLondon Heathrow
$610
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 832,500 searches. Data last updated November 6, 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

Tue 2/17

10:00 pm-1:05 am

1 stop20h 05m

Bangkok Suvarnabhumi

Tue 3/3

7:55 pm-6:35 pm

1 stop29h 40m

$604

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 12/5

9:00 pm-10:05 am

2 stops30h 05m

Bangkok Suvarnabhumi

Tue 12/9

5:25 pm-4:25 pm

2 stops30h 00m

$605

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 12/27

9:35 pm-4:40 pm

1 stop36h 05m

Bangkok Suvarnabhumi

Fri 1/23

1:50 pm-7:40 pm

1 stop36h 50m

$607

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 11/17

5:40 pm-12:10 am

1 stop23h 30m

Bangkok Suvarnabhumi

Sun 11/30

7:30 pm-3:55 pm

1 stop27h 25m

$608

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 1/18

10:00 pm-11:25 am

1 stop30h 25m

Bangkok Suvarnabhumi

Tue 2/24

6:55 pm-6:35 pm

1 stop30h 40m

$609

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 12/5

1:45 pm-10:45 am

1 stop14h 00m

Bangkok Suvarnabhumi

Mon 12/22

1:15 pm-9:40 pm

1 stop15h 25m

$614

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 11/28

9:10 pm-2:15 am

1 stop22h 05m

Bangkok Suvarnabhumi

Fri 12/19

12:10 pm-7:10 pm

1 stop38h 00m

$619

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 11/29

9:10 pm-6:30 pm

1 stop38h 20m

Bangkok Suvarnabhumi

Fri 12/19

3:15 am-7:10 pm

1 stop22h 55m

$622

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 12/5

12:05 pm-10:45 am

1 stop15h 40m

Bangkok Suvarnabhumi

Thu 12/11

1:15 pm-9:40 pm

1 stop15h 25m

$627

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 11/24

9:00 pm-1:55 am

1 stop21h 55m

Bangkok Suvarnabhumi

Fri 11/28

1:55 am-5:30 pm

1 stop22h 35m

$644

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

If you aren’t able to travel during the month of September, then book flights to Bangkok from London Heathrow Airport during May instead. Flights to Bangkok in May, while not as cheap as those in September, still average around $824.

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

On average, the least expensive day to fly to Bangkok from London Heathrow Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $961. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London Heathrow Airport to Bangkok on a Saturday will generally be more expensive and average around $1,069. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Bangkok is in the afternoon. momondo users have found flights departing from London Heathrow Airport to Bangkok in the afternoon for as low as $746. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $1,046. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $944 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 $871 on momondo.

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

There are 4 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)
Search flight deals

  • How far is London Heathrow to Bangkok by plane?

    Bangkok is 5934.0 mi away from London Heathrow. 14h 00m is a normal flight duration for this route.

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

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

  • 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?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Bangkok.

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

    The necessary travel and health documents for your Bangkok trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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
SAUDIAPriceFrom $407Free CancellationRating
7.4
639 reviews
Search SAUDIA flights
China EasternPriceFrom $539Free CancellationRating
7.2
174 reviews
Search China Eastern flights
Shenzhen AirlinesPriceFrom $544Free CancellationRating
7.5
20 reviews
Search Shenzhen Airlines flights
Air ChinaPriceFrom $556Free CancellationRating
7.1
122 reviews
Search Air China flights
Hainan AirlinesPriceFrom $560Free CancellationRating
8.1
52 reviews
Search Hainan Airlines flights
China SouthernPriceFrom $577Free CancellationRating
7.5
119 reviews
Search China Southern flights
Air IndiaPriceFrom $600Free CancellationRating
5.5
2,941 reviews
Search Air India flights
Gulf AirPriceFrom $621Free CancellationRating
7.2
218 reviews
Search Gulf Air flights
Austrian AirlinesPriceFrom $641Free CancellationRating
7.6
865 reviews
Search Austrian Airlines flights
Oman AirPriceFrom $683Free CancellationRating
8.1
100 reviews
Search Oman Air flights

Why use momondo?

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

Finding the right flight to Bangkok from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bangkok quick and easy, saving you time and money.

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

All flight searches from London to Bangkok on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for London to Bangkok flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for London to Bangkok flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Bangkok trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 12/6
Sat 12/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 15.4 mi from Bangkok
Bangkok Suvarnabhumi Airport
Bangkok Don Mueang Intl Airport