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Cheap flights from London Heathrow Airport to Bangkok from $406

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 9/4. 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 (LHR-BKK)

Cheap round-trip flights

Air India Logo
12:30 pm - 1:35 pmLHR-BKK
19h 05m1 stop
Air India Logo
8:50 pm - 10:15 amBKK-LHR
19h 25m1 stop
$642Air India
Find Deal
Mon, Sep 29 - Sun, Oct 5
SAUDIA Logo
5:50 pm - 1:45 pmLHR-BKK
37h 55m1 stop
SAUDIA Logo
1:15 am - 12:15 pmBKK-LHR
18h 00m1 stop
$643SAUDIA
Find Deal
Thu, Oct 16 - Wed, Nov 12
China Eastern Logo
9:20 pm - 8:55 pmLHR-BKK
17h 35m1 stop
China Eastern Logo
7:55 pm - 5:30 pmBKK-LHR
28h 35m1 stop
$650China Eastern
Find Deal
Fri, Sep 12 - Mon, Nov 3
Air China Logo
8:25 pm - 12:10 amLHR-BKK
21h 45m1 stop
Air China Logo
7:30 pm - 3:55 pmBKK-LHR
27h 25m1 stop
$664Air China
Find Deal
Thu, Oct 9 - Wed, Oct 29
Oman Air Logo
8:50 pm - 5:45 pmLHR-BKK
14h 55m1 stop
Oman Air Logo
8:05 pm - 5:55 amBKK-LHR
16h 50m1 stop
$675Oman Air
Find Deal
Wed, Sep 24 - Fri, Oct 31
Etihad Airways Logo
2:45 pm - 6:50 pmLHR-BKK
22h 05m1 stop
Etihad Airways Logo
2:55 am - 3:15 pmBKK-LHR
18h 20m1 stop
$677Etihad Airways
Find Deal
Wed, Sep 10 - Tue, Sep 16
Air China Logo
9:35 pm - 4:40 pmLHR-BKK
36h 05m1 stop
Air China Logo
1:30 am - 5:50 pmBKK-LHR
23h 20m1 stop
$680Air China
Find Deal
Sat, Dec 27 - Fri, Jan 23
China Eastern Logo
9:00 pm - 1:20 amLHR-BKK
45h 20m2 stops
China Eastern Logo
6:15 pm - 5:30 pmBKK-LHR
30h 15m2 stops
$683China Eastern
Find Deal
Wed, Nov 12 - Wed, Nov 19
Oman Air Logo
8:05 pm - 6:45 amLHR-BKK
27h 40m1 stop
Oman Air Logo
8:05 pm - 6:25 pmBKK-LHR
29h 20m1 stop
$689Oman Air
Find Deal
Thu, Feb 19 - Mon, Mar 2
Etihad Airways Logo
2:45 pm - 11:55 pmLHR-BKK
27h 10m1 stop
Etihad Airways Logo
2:55 am - 3:15 pmBKK-LHR
18h 20m1 stop
$694Etihad Airways
Find Deal
Sun, Oct 5 - Wed, Oct 15

China Southern flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Our best China Southern deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets
China Southern
Oct 5
LHR10:10 pmLondon Heathrow
32h 40m
1 stop
BKK12:50 pmBangkok Suvarnabhumi
Oct 15
BKK3:00 amBangkok Suvarnabhumi
22h 00m
1 stop
LHR7:00 pmLondon Heathrow
$653
Find similar
China Southern
Sep 24
LHR9:00 pmLondon Heathrow
22h 30m
2 stops
BKK1:30 amBangkok Suvarnabhumi
Oct 5
BKK8:20 pmBangkok Suvarnabhumi
28h 40m
1 stop
LHR7:00 pmLondon Heathrow
$658
Find similar
China Southern
Sep 23
LHR9:00 pmLondon Heathrow
35h 05m
2 stops
BKK2:05 pmBangkok Suvarnabhumi
Oct 20
BKK3:00 amBangkok Suvarnabhumi
22h 00m
1 stop
LHR7:00 pmLondon Heathrow
$659
Find similar

Austrian Airlines flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Our best Austrian Airlines deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets
Austrian Airlines
Dec 4
LHR7:25 pmLondon Heathrow
13h 05m
1 stop
BKK3:30 pmBangkok Suvarnabhumi
Jan 26
BKK2:00 pmBangkok Suvarnabhumi
14h 40m
1 stop
LHR9:40 pmLondon Heathrow
$673
Find similar
Austrian Airlines
Feb 18
LHR7:25 pmLondon Heathrow
13h 05m
1 stop
BKK3:30 pmBangkok Suvarnabhumi
Mar 18
BKK2:00 pmBangkok Suvarnabhumi
14h 40m
1 stop
LHR9:40 pmLondon Heathrow
$678
Find similar
Austrian Airlines
Sep 6
LHR7:30 pmLondon Heathrow
13h 20m
1 stop
BKK2:50 pmBangkok Suvarnabhumi
Sep 14
BKK11:40 pmBangkok Suvarnabhumi
14h 40m
1 stop
LHR8:20 amLondon Heathrow
$698
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 832,500 searches. Data last updated August 28, 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

Mon 9/29

12:30 pm-1:35 pm

1 stop19h 05m

Bangkok Suvarnabhumi

Sun 10/5

8:50 pm-10:15 am

1 stop19h 25m

$642

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 10/16

5:50 pm-1:45 pm

1 stop37h 55m

Bangkok Suvarnabhumi

Wed 11/12

1:15 am-12:15 pm

1 stop18h 00m

$643

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 9/12

9:20 pm-8:55 pm

1 stop17h 35m

Bangkok Suvarnabhumi

Mon 11/3

7:55 pm-5:30 pm

1 stop28h 35m

$650

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 10/9

8:25 pm-12:10 am

1 stop21h 45m

Bangkok Suvarnabhumi

Wed 10/29

7:30 pm-3:55 pm

1 stop27h 25m

$664

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 9/24

8:50 pm-5:45 pm

1 stop14h 55m

Bangkok Suvarnabhumi

Fri 10/31

8:05 pm-5:55 am

1 stop16h 50m

$675

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 9/10

2:45 pm-6:50 pm

1 stop22h 05m

Bangkok Suvarnabhumi

Tue 9/16

2:55 am-3:15 pm

1 stop18h 20m

$677

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 12/27

9:35 pm-4:40 pm

1 stop36h 05m

Bangkok Suvarnabhumi

Fri 1/23

1:30 am-5:50 pm

1 stop23h 20m

$680

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 11/12

9:00 pm-1:20 am

2 stops45h 20m

Bangkok Suvarnabhumi

Wed 11/19

6:15 pm-5:30 pm

2 stops30h 15m

$683

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 2/19

8:05 pm-6:45 am

1 stop27h 40m

Bangkok Suvarnabhumi

Mon 3/2

8:05 pm-6:25 pm

1 stop29h 20m

$689

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 10/5

2:45 pm-11:55 pm

1 stop27h 10m

Bangkok Suvarnabhumi

Wed 10/15

2:55 am-3:15 pm

1 stop18h 20m

$694

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 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 typical price of a round-trip flight between London Heathrow Airport and Bangkok Suvarnabhumi Airport?

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

The month of May is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from London Heathrow Airport, with most prices found around $825. The month of June is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from London Heathrow Airport averaging around $832.

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 Tuesday when prices can be found for as low as $984. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,096.

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

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is in the afternoon. Flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport during this time can be as low as $730. In the evening is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $1,059 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 $945 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 $874 on momondo.

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

There are 4 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.

Can stopping save me money on London Heathrow Airport to Bangkok Suvarnabhumi Airport flights?

You could potentially save up to 2% on your flight if you consider stops on a London Heathrow Airport to Bangkok Suvarnabhumi Airport flight.

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

As of August 2025, prices for London Heathrow Airport to Bangkok Suvarnabhumi Airport flights are approximately 7% 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

Best Price Found

$670

Fastest flight time

11h 25m

Direct flights

Every day
The best one-way flight to Bangkok Suvarnabhumi Airport from London Heathrow Airport in the past 72 hours is $670. The best round-trip flight deal from London Heathrow Airport to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is $927.
The fastest flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport takes 11h 25m
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?

    The straight-line distance from London Heathrow to Bangkok Suvarnabhumi is 5946.7 mi. In terms of flight time, this usually takes a little over 13h 05m.

  • 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 updated daily.

  • 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 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 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
SAUDIAPriceFrom $407Free CancellationRating
7.4
629 reviews
Search SAUDIA flights
Air ChinaPriceFrom $537Free CancellationRating
7.3
95 reviews
Search Air China flights
China EasternPriceFrom $539Free CancellationRating
7.2
164 reviews
Search China Eastern flights
Shenzhen AirlinesPriceFrom $544Free CancellationRating
6.8
16 reviews
Search Shenzhen Airlines flights
Hainan AirlinesPriceFrom $560Free CancellationRating
8.2
45 reviews
Search Hainan Airlines flights
China SouthernPriceFrom $577Free CancellationRating
7.5
109 reviews
Search China Southern flights
Air IndiaPriceFrom $590Free CancellationRating
5.5
2,929 reviews
Search Air India flights
Gulf AirPriceFrom $626Free CancellationRating
7.1
209 reviews
Search Gulf Air flights
Austrian AirlinesPriceFrom $673Free CancellationRating
7.6
836 reviews
Search Austrian Airlines flights
Etihad AirwaysPriceFrom $686Free CancellationRating
7.4
1,241 reviews
Search Etihad Airways flights

Traveling to a place near Bangkok?

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

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?

Flights from London to Bangkok with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

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.

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