Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from £297

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London Heathrow to Bangkok Suvarnabhumi are usually found in May or June, booked 64 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap 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 15 September 2025.

Round-trip from

£438

One-way from

£297

Popular in

December

Cheapest in

May

Average price

£615

Good round-trip deal

£662 or less

Good one-way deal

£483 or less
China Southern
  • China Southern
  • 1/3-19/3
  • 2 total stops
  • 60h 05m total
  • London to Bangkok
Search Deals
Air China
  • Air China
  • 15/11
  • 1 total stop
  • 31h 55m total
  • London to Bangkok
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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

Find flight deals from Heathrow to Suvarnabhumi

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 15 September 2025.

Wed 26/1122:00LHR - BKK
1 stop17h 30mChina Southern
Sat 27/1202:10BKK - LHR
1 stop23h 25mChina Southern
Deal found 13/9£438
Fri 26/922:05LHR - BKK
1 stop22h 10mShenzhen Airlines
Fri 17/1019:30BKK - LHR
1 stop30h 20mShenzhen Airlines
Deal found 13/9£439
Wed 5/1117:40LHR - BKK
1 stop17h 25mAir China
Tue 25/1101:30BKK - LHR
1 stop21h 25mAir China
Deal found 13/9£439
Wed 5/1113:30LHR - BKK
1 stop23h 05mAir India
Sun 30/1120:50BKK - LHR
1 stop21h 15mAir India
Deal found 14/9£440
Sat 15/1121:00LHR - BKK
1 stop20h 55mChina Eastern
Sun 28/1201:55BKK - LHR
1 stop22h 35mChina Eastern
Deal found 14/9£441
Sat 1/1121:10LHR - BKK
1 stop38h 20mShenzhen Airlines
Sat 22/1119:30BKK - LHR
1 stop30h 40mShenzhen Airlines
Deal found 13/9£442
Fri 7/1121:10LHR - BKK
1 stop38h 20mShenzhen Airlines
Fri 21/1112:10BKK - LHR
1 stop38h 00mShenzhen Airlines
Deal found 14/9£442
Thu 2/1021:20LHR - BKK
2 stops35h 35mChina Eastern
Mon 29/1215:05BKK - LHR
2 stops33h 25mChina Eastern
Deal found 13/9£443
Fri 31/1017:40LHR - BKK
1 stop17h 25mAir China
Wed 12/1101:30BKK - LHR
1 stop21h 25mAir China
Deal found 13/9£444
Fri 31/1017:40LHR - BKK
1 stop17h 25mAir China
Sun 9/1101:30BKK - LHR
1 stop21h 25mAir China
Deal found 14/9£445
Mon 3/1121:00LHR - BKK
1 stop18h 25mChina Eastern
Mon 17/1105:05BKK - LHR
1 stop19h 25mChina Eastern
Deal found 13/9£445
Wed 5/1121:10LHR - BKK
1 stop22h 05mShenzhen Airlines
Thu 27/1103:15BKK - LHR
1 stop22h 55mShenzhen Airlines
Deal found 14/9£446

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 858,174 searches. Data last updated 15 September 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

Heathrow

Fly to

Suvarnabhumi

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 29/10

13:55-23:30

2 stops26h 35m

Bangkok Suvarnabhumi

Thu 13/11

02:55-14:30

1 stop18h 35m

£512

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 29/9

21:45-23:55

1 stop20h 10m

Bangkok Suvarnabhumi

Fri 24/10

09:30-18:45

1 stop15h 15m

£515

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 18/2

10:45-10:05

1 stop16h 20m

Bangkok Suvarnabhumi

Tue 24/2

03:00-13:45

1 stop17h 45m

£516

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 23/11

19:20-23:20

1 stop21h 00m

Bangkok Suvarnabhumi

Thu 15/1

02:55-14:30

1 stop18h 35m

£541

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 13/10

20:55-23:55

1 stop21h 00m

Bangkok Suvarnabhumi

Thu 6/11

07:35-14:30

2 stops37h 55m

£552

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 15/10

21:45-07:20

1 stop27h 35m

Bangkok Suvarnabhumi

Tue 11/11

02:55-14:30

1 stop18h 35m

£568

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 15/10

21:45-07:20

1 stop27h 35m

Bangkok Suvarnabhumi

Mon 10/11

02:55-14:30

1 stop18h 35m

£568

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 5/10

20:55-23:55

1 stop21h 00m

Bangkok Suvarnabhumi

Mon 27/10

07:35-06:40

2 stops30h 05m

£596

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 23/11

19:20-23:20

1 stop21h 00m

Bangkok Suvarnabhumi

Sat 21/2

02:55-06:40

1 stop34h 45m

£596

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 30/9

22:10-00:10

1 stop20h 00m

Bangkok Suvarnabhumi

Wed 18/3

01:15-12:15

1 stop18h 00m

£605

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 22 results
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 12 September 2025.

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 64 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 £717). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of £1,123). 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 15 September 2025.

It’s optimal to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport at midday. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Use this chart to determine the cheapest time to fly return from Heathrow to Suvarnabhumi. Price data was last updated on 7 September 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Bangkok Suvarnabhumi Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 15 September 2025.
Read reviews from past customers who have flown with EVA Air, Thai Airways, andQatar Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,236 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very Good
1,236 reviews
EVA Air
8.4
Very Good
1,236 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Thai Airways
7.8
Good
350 reviews
EVA Air
8.4
Very Good
1,236 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Qatar Airways
7.4
Good
3,624 reviews
EVA Air
8.4
Very Good
1,236 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Etihad Airways
7.4
Good
1,250 reviews
EVA Air
8.4
Very Good
1,236 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Air China
7.2
Good
99 reviews
EVA Air
8.4
Very Good
1,236 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

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?

    For as low as £516, Etihad Airways can have you in Bangkok Suvarnabhumi Airport from London Heathrow Airport in 16h 20m. London Heathrow Airport and Bangkok Suvarnabhumi Airport are separated by a distance of 5947 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Flying on SAUDIA is currently your cheapest option to Bangkok Suvarnabhumi Airport, with prices starting at £332. Additional return tickets that might be worth considering are offered by Shenzhen Airlines and Norse Atlantic UK, with the lowest prices starting at £334 and £345, respectively. SAUDIA is priced at 52% lower than the current average price of a flight leaving 3 months from now.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport are EVA Air (82%), Thai Airways (77%) and Air Canada (69%).

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

    Looking for the cheapest flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport? While on average our users pay £2,666, our data indicates the cheapest price to be £408. The most popular route (London Heathrow - Bangkok Suvarnabhumi), is priced around £331.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

    London Heathrow Airport to Bangkok Suvarnabhumi Airport flights have a stopover in Doha most often. Abu Dhabi follows Doha in terms of the most common stopover location on London Heathrow Airport to Bangkok Suvarnabhumi Airport flights. Beijing ranks third in terms of the most popular layover location on London Heathrow Airport to Bangkok Suvarnabhumi Airport flights.

  • What are some popular points of interest to see during a stopover in Abu Dhabi?

    If you're on a stopover in Abu Dhabi and looking for things to do, consider visiting Etihad Towers, Sheikh Zayed Mosque, or Emirates Park Zoo. Those on a layover in Abu Dhabi interested in visiting Etihad Towers, Sheikh Zayed Mosque, or Emirates Park Zoo can do so by travelling 20.8 mi, 11.2 mi, and 7.9 mi, respectively from Abu Dhabi Zayed Intl. Those landing in Abu Dhabi looking to spend some time exploring during their stopover can hire a car for about £16 per day.

  • What are points of interest worth seeing during a stopover in Beijing?

    Beijing travellers tend to visit Summer Palace, Forbidden City, and The Antiquarium of the Palace Museum more than any other attractions. Summer Palace, Forbidden City, and The Antiquarium of the Palace Museum can be accessed by travelling approximately 17.3 mi, 15.1 mi, and 14.9 mi, respectively from Beijing Capital.

  • Where are the least popular stopover locations for London Heathrow Airport to Bangkok Suvarnabhumi Airport flights?

    Of the flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport that have stopovers, the fewest flights stop in Haikou. Zurich is the second least popular location for stopovers on flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport. Paris comes in third to last in terms of the least popular stopover locations on London Heathrow Airport to Bangkok Suvarnabhumi Airport flights.

  • 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 £717). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of £1,123). 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
Cha-am
Chonburi
Ayutthaya
Ko Samet
Ko Lan

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 15 September 2025.
Thai Airways flights from London Heathrow to Bangkok Suvarnabhumi
EVA Air flights from London Heathrow to Bangkok Suvarnabhumi
Etihad 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 858,174 searches. Data last updated 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapest£333Average£552FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Norse Atlantic UKCheapest£345Average£561FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Hainan AirlinesCheapest£374Average£429FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£464Average£538FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
LufthansaCheapest£474Average£862FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£481Average£655FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£481Average£704FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£486Average£722FlexibilityNo cancel feeOn-time77%
Search Air France flights
Turkish AirlinesCheapest£502Average£622FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
FinnairCheapest£526Average£851FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Suvarnabhumi from Heathrow today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Suvarnabhumi by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Suvarnabhumi with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Suvarnabhumi become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Suvarnabhumi on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.