Cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport from £285

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
29 May — 5 Jun1
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 Monday or Tuesday 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 29 April 2026.

Mon 16/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Sun 29/1119:30
BKK
-
LHR
1 stop30h 40m
Shenzhen Airlines
Deal found 25/4£433
Mon 2/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Sun 22/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 27/4£434
Mon 2/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Sun 8/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 28/4£434
Sat 6/610:00
LHR
-
BKK
1 stop21h 45m
SAUDIA
Thu 25/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 28/4£435
Tue 5/522:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Sun 17/515:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 28/4£436
Sun 3/522:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Sun 10/515:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 27/4£437
Mon 15/616:15
LHR
-
BKK
1 stop15h 30m
SAUDIA
Sun 21/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 28/4£437
Tue 28/422:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Fri 8/501:50
BKK
-
LHR
1 stop16h 50m
SAUDIA
Deal found 25/4£438
Mon 1/616:15
LHR
-
BKK
1 stop15h 30m
SAUDIA
Sun 7/615:25
BKK
-
LHR
1 stop28h 50m
SAUDIA
Deal found 28/4£439
Mon 1/616:15
LHR
-
BKK
1 stop15h 30m
SAUDIA
Sun 21/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 28/4£440
Thu 18/614:40
LHR
-
BKK
1 stop17h 00m
SAUDIA
Tue 30/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 25/4£441

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 29 April 2026.

Round-trip from

£433

One-way from

£285

Popular in

July

Cheapest in

May

Average price

£666

Good round-trip deal

£824 or less

Good one-way deal

£529 or less
SAUDIA
  • SAUDIA
  • 31/5-20/6
  • 2 total stops
  • 42h 00m total
  • London to Bangkok
Air China
  • Air China
  • 12/9
  • 1 total stop
  • 37h 40m total
  • London to Bangkok
Highest demand for flights based on searches. 9% potential increase in price (£51 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 April 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 29 April 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

Thu 18/6

22:10-00:05

1 stop19h 55m

Bangkok Suvarnabhumi

Tue 30/6

15:25-07:30

1 stop22h 05m

£501

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 8/9

12:30-13:35

1 stop19h 05m

Bangkok Suvarnabhumi

Wed 7/10

20:20-11:30

1 stop21h 10m

£558

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 24/5

21:45-23:50

1 stop20h 05m

Bangkok Suvarnabhumi

Thu 28/5

03:15-12:45

1 stop15h 30m

£600

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 4/9

22:05-09:45

1 stop29h 40m

Bangkok Suvarnabhumi

Tue 8/12

19:15-14:45

1 stop26h 30m

£642

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 7/6

08:55-09:50

2 stops18h 55m

Bangkok Suvarnabhumi

Mon 22/6

12:50-07:55

1 stop25h 05m

£781

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 2/8

08:25-06:55

1 stop16h 30m

Bangkok Suvarnabhumi

Sat 15/8

14:20-06:30

1 stop22h 10m

£793

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 11/8

21:45-23:50

1 stop20h 05m

Bangkok Suvarnabhumi

Thu 20/8

09:45-18:45

1 stop15h 00m

£798

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 2/8

09:30-11:50

1 stop20h 20m

Bangkok Suvarnabhumi

Sat 15/8

15:05-12:45

1 stop27h 40m

£813

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 24/10

21:20-12:20

1 stop33h 00m

Bangkok Suvarnabhumi

Wed 11/11

07:50-17:30

3 stops40h 40m

£837

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 29/5

14:45-18:05

2 stops21h 20m

Bangkok Suvarnabhumi

Thu 4/6

02:10-18:40

1 stop22h 30m

£877

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 24 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?

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 84 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 £592). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of £884). 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 29 April 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 29 April 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.

Crew

8.6

Entertainment

8.0

Comfort

8.3

Food

8.1

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

Crew

8.6

Entertainment

8.0

Comfort

8.3

Food

8.1

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

Crew

8.6

Entertainment

8.0

Comfort

8.3

Food

8.1

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

Crew

8.6

Entertainment

8.0

Comfort

8.3

Food

8.1

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

Crew

8.6

Entertainment

8.0

Comfort

8.3

Food

8.1

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

Crew

8.6

Entertainment

8.0

Comfort

8.3

Food

8.1

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

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 £558, SAUDIA can have you in Bangkok Suvarnabhumi Airport from London Heathrow Airport in 19h 05m. 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 Norse Atlantic UK is currently your cheapest option to Bangkok Suvarnabhumi Airport, with prices starting at £213. Additional return tickets that might be worth considering are offered by Scandinavian Airlines and Shenzhen Airlines, with the lowest prices starting at £281 and £331, respectively. Norse Atlantic UK is priced at 69% 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 (£239), Hainan Airlines (£253), and Singapore Airlines (£262).

  • 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 (77%), Air Canada (74%) and EVA Air (71%).

  • 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 £1,017, our data indicates the cheapest price to be £498. The most popular route (London Heathrow - Bangkok Suvarnabhumi), is priced around £377.

  • 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 Emirates Palace, Yas Waterworld, or Ferrari World Abu Dhabi. Travelers on a layover in Abu Dhabi can visit Emirates Palace, Yas Waterworld, and Ferrari World Abu Dhabi, by traveling 21.1 mi, 5.0 mi, and 4.5 mi, respectively after landing at Abu Dhabi Zayed Intl. Travellers in need of a car in Abu Dhabi can hire one for about £13 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 £592). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of £884). 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
Pak Chong
Chonburi
Ko Samet
Ayutthaya
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 29 April 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 29 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£213Average£561FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Scandinavian AirlinesCheapest£281Average£635FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
ITA AirwaysCheapest£363Average£530FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights
Turkish AirlinesCheapest£381Average£671FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Royal JordanianCheapest£406Average£715FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
CondorCheapest£447Average£718FlexibilityNo cancel feeOn-time76%
Search Condor flights
LufthansaCheapest£459Average£682FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£503Average£682FlexibilityNo cancel feeOn-time75%
Search KLM flights
IndiGoCheapest£503Average£615FlexibilityNo cancel feeOn-time80%
Search IndiGo flights
Air FranceCheapest£506Average£785FlexibilityNo 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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