Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from £275

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
3 Apr — 10 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 Tuesday or Monday and return on a Monday

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 4 March 2026.

Sun 15/321:00
LHR
-
BKK
2 stops21h 15m
China Eastern
Wed 25/305:05
BKK
-
LHR
1 stop19h 25m
China Eastern
Deal found 28/2£424
Sun 8/321:00
LHR
-
BKK
1 stop18h 25m
China Eastern
Mon 23/321:05
BKK
-
LHR
2 stops27h 25m
China Eastern
Deal found 1/3£425
Sat 7/321:00
LHR
-
BKK
2 stops21h 15m
China Eastern
Tue 17/305:05
BKK
-
LHR
1 stop19h 25m
China Eastern
Deal found 27/2£426
Fri 13/321:10
LHR
-
BKK
1 stop31h 00m
Shenzhen Airlines
Tue 24/319:30
BKK
-
LHR
1 stop30h 40m
Shenzhen Airlines
Deal found 28/2£426
Sun 15/321:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Thu 21/519:15
BKK
-
LHR
1 stop30h 45m
Shenzhen Airlines
Deal found 4/3£427
Fri 24/422:05
LHR
-
BKK
1 stop38h 25m
Shenzhen Airlines
Fri 8/512:10
BKK
-
LHR
1 stop37h 40m
Shenzhen Airlines
Deal found 27/2£428
Wed 11/321:10
LHR
-
BKK
1 stop38h 20m
Shenzhen Airlines
Thu 11/603:15
BKK
-
LHR
1 stop22h 45m
Shenzhen Airlines
Deal found 3/3£429
Sat 2/521:20
LHR
-
BKK
1 stop17h 35m
China Eastern
Sun 17/513:35
BKK
-
LHR
1 stop35h 05m
China Eastern
Deal found 3/3£429
Fri 1/516:15
LHR
-
BKK
1 stop15h 30m
SAUDIA
Sun 10/515:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 4/3£430
Tue 5/521:20
LHR
-
BKK
1 stop17h 35m
China Eastern
Sun 17/521:55
BKK
-
LHR
1 stop26h 45m
China Eastern
Deal found 2/3£431
Wed 13/521:20
LHR
-
BKK
1 stop17h 35m
China Eastern
Tue 19/502:10
BKK
-
LHR
1 stop22h 30m
China Eastern
Deal found 2/3£432
Wed 11/321:10
LHR
-
BKK
1 stop38h 20m
Shenzhen Airlines
Thu 7/512:10
BKK
-
LHR
1 stop37h 50m
Shenzhen Airlines
Deal found 2/3£432

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 4 March 2026.

Round-trip from

£424

One-way from

£275

Popular in

July

Cheapest in

May

Average price

£675

Good round-trip deal

£730 or less

Good one-way deal

£488 or less
China Eastern
  • China Eastern
  • 15/3-25/3
  • 3 total stops
  • 40h 40m total
  • London to Bangkok
Air China
  • Air China
  • 20/4
  • 1 total stop
  • 37h 40m total
  • London to Bangkok
Highest demand for flights based on searches. 9% potential increase in price (£54 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in March 2026
Price to beat on a round-trip flight from London Heathrow to Bangkok Suvarnabhumi.
Price to beat on a one-way flight from London Heathrow to Bangkok Suvarnabhumi.

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 4 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

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 26/5

21:20-21:55

1 stop18h 35m

Bangkok Suvarnabhumi

Wed 17/6

02:10-18:40

1 stop22h 30m

£430

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 8/5

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Sun 7/6

03:15-19:50

1 stop22h 35m

£441

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 16/3

21:10-02:15

1 stop22h 05m

Bangkok Suvarnabhumi

Sun 29/3

03:15-19:50

1 stop22h 35m

£441

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 1/5

20:50-13:25

2 stops34h 35m

Bangkok Suvarnabhumi

Sat 16/5

09:00-06:30

1 stop27h 30m

£676

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 14/4

20:50-17:45

1 stop14h 55m

Bangkok Suvarnabhumi

Tue 21/4

19:10-19:10

1 stop30h 00m

£737

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 4/4

21:20-20:55

1 stop17h 35m

Bangkok Suvarnabhumi

Sun 12/4

03:00-18:40

2 stops45h 40m

£745

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 17/3

21:05-11:00

2 stops30h 55m

Bangkok Suvarnabhumi

Sat 28/3

12:45-15:25

2 stops33h 40m

£757

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 15/4

21:35-15:30

Nonstop11h 55m

Bangkok Suvarnabhumi

Mon 11/5

02:40-18:40

1 stop22h 00m

£817

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 5/5

21:35-15:30

Nonstop11h 55m

Bangkok Suvarnabhumi

Thu 21/5

02:40-08:20

1 stop35h 40m

£819

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 15/5

21:35-15:30

Nonstop11h 55m

Bangkok Suvarnabhumi

Sat 6/6

02:40-21:40

1 stop25h 00m

£877

Flights are sorted by cheapest return flights first.

Deals found on 1/3

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
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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 27 February 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 £393). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of £539). 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 4 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.

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 4 March 2026.
Read reviews from past customers who have flown with EVA Air, Oman Air, andThai 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.

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

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.

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

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.

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

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.

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

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.

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

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.

Food

8.1

Entertainment

8.0

Overall

8.4

Crew

8.6

Comfort

8.3

Boarding

8.4

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?

    For as low as £430, China Eastern can have you in Bangkok Suvarnabhumi Airport from London Heathrow Airport in 18h 35m. 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 Scandinavian Airlines is currently your cheapest option to Bangkok Suvarnabhumi Airport, with prices starting at £285. Additional return tickets that might be worth considering are offered by Norse Atlantic UK and Shenzhen Airlines, with the lowest prices starting at £296 and £336, respectively. Scandinavian Airlines is priced at 59% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapet airlines for a one-way flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport are Shenzhen Airlines (£242), Hainan Airlines (£252), and Turkmenistan Airlines (£257).

  • 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 Thai Airways (88%), Air Canada (85%) and EVA Air (85%).

  • 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 £2,324, our data indicates the cheapest price to be £450. The most popular route (London Heathrow - Bangkok Suvarnabhumi), is priced around £388.

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

  • What are some popular things to do or see while on a stopover in Abu Dhabi?

    If you're on a stopover in Abu Dhabi and looking for things to do, consider visiting Etihad Towers, Emirates Palace, or Emirates Park Zoo. Travelers on a layover in Abu Dhabi can visit Etihad Towers, Emirates Palace, and Emirates Park Zoo, by traveling 20.8 mi, 21.1 mi, and 7.9 mi, respectively after landing at Abu Dhabi Zayed Intl. Travellers in need of a car in Abu Dhabi can hire one for about £19 per day.

  • Where are the least popular stopover locations for 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 £393). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of £539). 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
Kanchanaburi
Chonburi
Pak Chong
Ayutthaya
Ko Samet
Sattahip
Ko Lan

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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 4 March 2026.

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 4 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£285Average£689FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Norse Atlantic UKCheapest£296Average£563FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
China AirlinesCheapest£341Average£718FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
ITA AirwaysCheapest£368Average£530FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights
Hainan AirlinesCheapest£378Average£427FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal JordanianCheapest£411Average£733FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
LufthansaCheapest£469Average£724FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Gulf AirCheapest£495Average£671FlexibilityNo cancel feeOn-time67%
Search Gulf Air flights
KLMCheapest£506Average£734FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£508Average£767FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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

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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.

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