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Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from ฿11,760

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Bangkok Suvarnabhumi are usually found in May or September, booked 85 days in advance, depart on a Sunday or Tuesday and return on a Wednesday

Cheap flight deals from Heathrow to Suvarnabhumi

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Suvarnabhumi
Explore the most affordable flight options available from Heathrow to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2026.

Mon 20/422:05
LHR
-
BKK
1 stop22h 10m
Shenzhen Airlines
Tue 5/512:10
BKK
-
LHR
1 stop37h 50m
Shenzhen Airlines
Deal found 6/3฿18,209
Mon 20/410:00
LHR
-
BKK
1 stop21h 45m
ซาอุเดียแอร์ไลน์
Mon 4/515:20
BKK
-
LHR
1 stop27h 20m
ซาอุเดียแอร์ไลน์
Deal found 6/3฿18,241
Mon 20/416:15
LHR
-
BKK
1 stop15h 30m
ซาอุเดียแอร์ไลน์
Tue 5/515:25
BKK
-
LHR
1 stop22h 05m
ซาอุเดียแอร์ไลน์
Deal found 7/3฿18,273
Tue 5/521:20
LHR
-
BKK
1 stop18h 35m
China Eastern
Wed 13/503:00
BKK
-
LHR
2 stops21h 40m
China Eastern
Deal found 10/3฿18,304
Tue 5/521:20
LHR
-
BKK
1 stop18h 35m
China Eastern
Mon 18/503:00
BKK
-
LHR
2 stops21h 40m
China Eastern
Deal found 7/3฿18,336
Fri 20/1121:00
LHR
-
BKK
1 stop20h 55m
China Eastern
Thu 26/1101:55
BKK
-
LHR
1 stop22h 35m
China Eastern
Deal found 6/3฿18,368
Tue 5/521:20
LHR
-
BKK
1 stop21h 20m
China Eastern
Mon 11/503:00
BKK
-
LHR
2 stops21h 40m
China Eastern
Deal found 9/3฿18,399
Tue 5/514:40
LHR
-
BKK
1 stop17h 00m
ซาอุเดียแอร์ไลน์
Thu 9/715:25
BKK
-
LHR
1 stop22h 05m
ซาอุเดียแอร์ไลน์
Deal found 10/3฿18,431
Sat 2/522:00
LHR
-
BKK
1 stop37h 05m
Air China
Mon 18/501:30
BKK
-
LHR
1 stop24h 55m
Air China
Deal found 7/3฿18,462
Sat 13/622:05
LHR
-
BKK
1 stop31h 05m
Shenzhen Airlines
Sat 20/612:10
BKK
-
LHR
1 stop37h 50m
Shenzhen Airlines
Deal found 9/3฿18,494
Fri 1/522:05
LHR
-
BKK
1 stop38h 10m
Shenzhen Airlines
Sat 16/519:15
BKK
-
LHR
1 stop30h 45m
Shenzhen Airlines
Deal found 10/3฿18,526
Sun 31/522:05
LHR
-
BKK
1 stop38h 10m
Shenzhen Airlines
Thu 11/603:15
BKK
-
LHR
1 stop22h 45m
Shenzhen Airlines
Deal found 6/3฿18,557

Find flight deals from Heathrow to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Suvarnabhumi (BKK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 March 2026.

Round-trip from

฿18,209

One-way from

฿11,760

Popular in

July

Cheapest in

May

Average price

฿29,053

Good round-trip deal

฿31,708 or less

Good one-way deal

฿21,355 or less
Shenzhen Airlines
  • Shenzhen Airlines
  • 20/4-5/5
  • 2 total stops
  • 60h 00m total
  • London to Bangkok
Search Deals
Air China
  • Air China
  • 9/6
  • 1 total stop
  • 19h 30m total
  • London to Bangkok
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿97,165 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿24,263 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Bangkok Suvarnabhumi.
Search Deals
Price to beat on a one-way flight from London Heathrow to Bangkok Suvarnabhumi.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Suvarnabhumi 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, Cheapflights users made 17,341 searches. Data last updated 11 March 2026.
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

Cheapest return flight

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 1/6

22:05-18:15

1 stop38h 10m

Bangkok Suvarnabhumi

Sat 20/6

19:15-20:00

1 stop30h 45m

฿18,526

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 21/6

21:05-19:20

1 stop16h 15m

Bangkok Suvarnabhumi

Sat 11/7

08:40-19:00

1 stop16h 20m

฿23,426

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 2/4

21:45-06:45

1 stop27h 00m

Bangkok Suvarnabhumi

Sat 2/5

15:05-15:05

1 stop30h 00m

฿25,923

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 7/4

21:45-23:50

1 stop20h 05m

Bangkok Suvarnabhumi

Wed 15/4

09:45-18:45

1 stop15h 00m

฿31,392

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 4/4

20:50-06:55

1 stop28h 05m

Bangkok Suvarnabhumi

Thu 9/4

19:10-19:10

1 stop30h 00m

฿31,424

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 26/3

20:05-06:45

1 stop27h 40m

Bangkok Suvarnabhumi

Thu 2/4

19:10-19:10

1 stop30h 00m

฿31,550
Fastest return journey

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 4/6

21:35-15:30

Nonstop11h 55m

Bangkok Suvarnabhumi

Mon 8/6

12:45-19:20

Nonstop12h 35m

฿31,740

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 25/4

06:15-00:40

2 stops36h 25m

Bangkok Suvarnabhumi

Fri 5/6

05:05-21:25

2 stops22h 20m

฿32,119

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 12/6

21:35-15:30

Nonstop11h 55m

Bangkok Suvarnabhumi

Tue 23/6

02:40-21:40

1 stop25h 00m

฿34,238

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 11/6

21:35-15:30

Nonstop11h 55m

Bangkok Suvarnabhumi

Tue 23/6

02:40-21:40

1 stop25h 00m

฿34,238

Flights are sorted by cheapest return flights first.

Deals found on 6/3

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport

How far ahead should I book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Use this chart to determine the optimal time to book a return flight from Heathrow to Suvarnabhumi. Price data was last updated on 6 March 2026.

The price you pay for your flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of ฿16,376). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of ฿22,509). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to BKK?

Find hourly flight availability from Heathrow to Suvarnabhumi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport as you normally would.

How much does it cost for a return flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Suvarnabhumi. Reviews last updated 11 March 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport, such as EVA Air,โอมานแอร์, andThai Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,370 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
EVA Air
8.4
Very Good
1,370 reviews
EVA Air
8.4
Very Good
1,370 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
โอมานแอร์
8.1
Very Good
117 reviews
EVA Air
8.4
Very Good
1,370 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Thai Airways
7.8
Good
391 reviews
EVA Air
8.4
Very Good
1,370 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Qatar Airways
7.4
Good
3,744 reviews
EVA Air
8.4
Very Good
1,370 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
เอทิฮัดแอร์เวย์
7.4
Good
1,425 reviews
EVA Air
8.4
Very Good
1,370 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Suvarnabhumi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

    Shenzhen Airlines, Air India, and เอทิฮัดแอร์เวย์ can get you from London Heathrow Airport to Bangkok Suvarnabhumi Airport in just under 16h 15m. Your travel time can differ by up to 21h 55m. The distance from London Heathrow Airport to Bangkok Suvarnabhumi Airport is about 9571 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport round-trip?

    Currently priced at ฿12,033, ไห่หนานแอร์ไลน์ will fly you from London Heathrow Airport to Bangkok Suvarnabhumi Airport and back. In addition to ไห่หนานแอร์ไลน์, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Shenzhen Airlines and China Southern - these airlines can fly you to your destination from ฿15,177 and ฿16,016, respectively. These flights start at 59% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport one-way?

    To fly one-way, consider booking your trip with China Eastern, which is currently one of the cheapest options available, starting at ฿10,170. โอมานแอร์ flights start at ฿12,778 while deals on สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ start at ฿13,980 one-way.

  • What are the most reliable airlines from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

    Before booking your flight to Bangkok Suvarnabhumi Airport from London Heathrow Airport, have a look at the most reliable airlines to get you to your destination on time: Thai Airways (88%), แอร์แคนาดา (85%), EVA Air( 85%).

  • What are the cheapest flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

    Looking at all options, your cheapest flight can be booked for ฿19,196. While the most popular route (London Heathrow - Bangkok Suvarnabhumi) can be booked for ฿15,996 on average, our data indicates ฿28,288 when flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport.

  • Can I find deals for flights from Heathrow to Suvarnabhumi that include hotel bookings?

    Yes. In addition to deals on Heathrow to Suvarnabhumi flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Suvarnabhumi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Suvarnabhumi.

  • Can I find deals for business class flights from Heathrow to Suvarnabhumi?

    Yes. Cheapflights offers flight deals from Heathrow to Suvarnabhumi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of ฿16,376). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of ฿22,509). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Bangkok Suvarnabhumi Airport?

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

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Suvarnabhumi on these airlines

Choose from the following airlines for your flight from Heathrow to Suvarnabhumi. Flights are based on user searches made on Cheapflights and were last updated on 11 March 2026.
EVA Air flights from London Heathrow to Bangkok Suvarnabhumi
Thai Airways flights from London Heathrow to Bangkok Suvarnabhumi

Top 10 airlines flying from Heathrow to Suvarnabhumi

Discover the top 10 airlines that operate flights from Heathrow to Suvarnabhumi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 11 March 2026.
AirlineCheapestAverageFlexibilityOn-time
ไห่หนานแอร์ไลน์Cheapest฿12,033Average฿18,135FlexibilityNo cancel feeOn-time61%
Search ไห่หนานแอร์ไลน์ flights
Shenzhen AirlinesCheapest฿15,177Average฿18,690FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest฿16,016Average฿19,513FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest฿16,981Average฿18,986FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest฿17,765Average฿21,119FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
เอทิฮัดแอร์เวย์Cheapest฿21,195Average฿24,745FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
โอมานแอร์Cheapest฿21,664Average฿24,312FlexibilityNo cancel feeOn-time76%
Search โอมานแอร์ flights
Qatar AirwaysCheapest฿22,304Average฿25,765FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Thai AirwaysCheapest฿28,073Average฿33,956FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
EmiratesCheapest฿28,798Average฿43,128FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Suvarnabhumi?

Cheapflights helps you search for flights from Heathrow to Suvarnabhumi via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Suvarnabhumi?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Suvarnabhumi for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to Suvarnabhumi with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Suvarnabhumi flexibly with Cheapflights today.

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Of course! You can now track prices for flights from Heathrow to Suvarnabhumi and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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