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Suvarnabhumi

$390+ Cheap flights from Heathrow (LHR) to Suvarnabhumi (BKK)

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 6/20. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Bangkok Suvarnabhumi are usually found in May or June, booked 81 days in advance, depart on a Monday or Wednesday and return on a Friday

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 June 12, 2025.

Round-trip from

$564
(Booking.com)

One-way from

$390
(FlightHub)

Popular in

July

Cheapest in

May

Average price

$836

Good round-trip deal

$902 or less

Good one-way deal

$516 or less
From London Heathrow to Bangkok Suvarnabhumi
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One-way flight from London Heathrow to Bangkok Suvarnabhumi
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Highest demand for flights based on searches. 8% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from London Heathrow to Bangkok Suvarnabhumi.
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Price to beat on a one-way flight from London Heathrow to Bangkok Suvarnabhumi.
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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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/810:00 pmLHR - BKK
2 stops30h 00mHainan Airlines
Thu 10/27:20 pmBKK - LHR
2 stops30h 10mHainan Airlines
Deal found 6/10$564
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:10 pmLHR - BKK
1 stop21h 40mShenzhen Airlines
Sat 11/293:05 amBKK - LHR
1 stop23h 05mShenzhen Airlines
Deal found 6/11$576
This Gotogate deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/169:20 pmLHR - BKK
1 stop21h 20mChina Eastern
Mon 10/132:10 amBKK - LHR
1 stop22h 30mChina Eastern
Deal found 6/11$616
This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1610:40 pmLHR - BKK
1 stop19h 30mAir China
Wed 7/21:30 amBKK - LHR
1 stop25h 00mAir China
Deal found 6/10$621
This China Southern deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:00 pmLHR - BKK
1 stop29h 10mChina Southern
Mon 12/12:10 amBKK - LHR
1 stop23h 05mChina Southern
Deal found 6/12$627
This SWISS deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:00 amLHR - BKK
1 stop21h 45mSWISS
Wed 9/2412:35 pmBKK - LHR
1 stop36h 45mSWISS
Deal found 6/11$656
This Expedia deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/247:30 pmLHR - BKK
1 stop13h 20mMultiple Airlines
Tue 7/112:50 pmBKK - LHR
1 stop14h 55mMultiple Airlines
Deal found 6/12$674
This Austrian Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/246:00 amLHR - BKK
1 stop26h 50mAustrian Airlines
Mon 7/2111:40 pmBKK - LHR
1 stop15h 05mAustrian Airlines
Deal found 6/12$677
This Trip.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/199:05 pmLHR - BKK
1 stop16h 30mAir India
Sun 6/298:50 pmBKK - LHR
1 stop19h 25mAir India
Deal found 6/12$699
This Lufthansa deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/251:45 pmLHR - BKK
2 stops19h 05mLufthansa
Mon 7/711:00 pmBKK - LHR
1 stop15h 15mLufthansa
Deal found 6/11$700
This KLM deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/158:40 amLHR - BKK
1 stop18h 50mKLM
Sun 6/2912:05 pmBKK - LHR
1 stop25h 35mKLM
Deal found 6/10$715
This Oman Air deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Oman Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/118:50 pmLHR - BKK
1 stop14h 55mOman Air
Sun 6/157:10 pmBKK - LHR
1 stop30h 00mOman Air
Deal found 6/11$730

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 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

Mon 9/8

10:00 pm-10:00 am

2 stops30h 00m

Bangkok Suvarnabhumi

Thu 10/2

7:20 pm-7:30 pm

2 stops30h 10m

$564

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 11/21

9:10 pm-1:50 am

1 stop21h 40m

Bangkok Suvarnabhumi

Sat 11/29

3:05 am-7:10 pm

1 stop23h 05m

$576

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 9/16

9:20 pm-12:40 am

1 stop21h 20m

Bangkok Suvarnabhumi

Mon 10/13

2:10 am-6:40 pm

1 stop22h 30m

$616

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 11/18

10:00 pm-10:10 am

1 stop29h 10m

Bangkok Suvarnabhumi

Tue 12/2

11:25 am-6:15 pm

1 stop37h 50m

$627

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 11/3

8:25 pm-6:05 pm

1 stop38h 40m

Bangkok Suvarnabhumi

Wed 12/10

1:50 pm-7:40 pm

1 stop36h 50m

$628

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 8/24

6:00 am-9:45 am

1 stop21h 45m

Bangkok Suvarnabhumi

Wed 9/24

12:35 pm-7:20 pm

1 stop36h 45m

$656

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 6/24

7:30 pm-2:50 pm

1 stop13h 20m

Bangkok Suvarnabhumi

Tue 7/1

12:50 pm-9:45 pm

1 stop14h 55m

$674

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 6/24

7:30 pm-2:50 pm

1 stop13h 20m

Bangkok Suvarnabhumi

Sun 7/13

11:40 pm-6:40 pm

1 stop25h 00m

$677

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 6/25

1:45 pm-2:50 pm

2 stops19h 05m

Bangkok Suvarnabhumi

Mon 7/7

11:00 pm-8:15 am

1 stop15h 15m

$700

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 8/28

8:50 pm-5:45 pm

1 stop14h 55m

Bangkok Suvarnabhumi

Sun 9/14

7:10 pm-7:10 pm

1 stop30h 00m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 28 results
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The best insider tips for London Heathrow Airport to Bangkok Suvarnabhumi Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Bangkok Suvarnabhumi Airport trip
Airports
LHR

For a smooth departure, ensure all liquids are in one small bag to avoid long security checks at Heathrow.

Read more about LHRby Ramsey Qubein
BKK

Use the Airport Rail Link for a quick 20-minute ride from BKK to Bangkok's city center, connecting to MRT or BTS.

Read more about BKKby Robert Schrader
Our travel experts
Robert Schrader

Robert Schrader

Expert on BKK

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 round-trip 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 round-trip flight from Heathrow to Suvarnabhumi. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of $953). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $1,574). 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 June 12, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 25% on flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport by exploring options for tickets 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 round-trip from Heathrow to Suvarnabhumi. Price data was last updated on June 8, 2025.

Travelers 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. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Explore weekly flight availability from Heathrow to Suvarnabhumi. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from LHR to BKK are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Suvarnabhumi by month

Plan your trip to Suvarnabhumi by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bangkok Suvarnabhumi Airport ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Bangkok Suvarnabhumi Airport when rainfall is around 0.4 in.

Temperature in Suvarnabhumi by month

Plan your trip to Suvarnabhumi by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bangkok Suvarnabhumi Airport, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

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 June 12, 2025.
See what other customers who have flown with Hainan Airlines, KLM and Austrian Airlines from London to Bangkok have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Hainan Airlines
8.1
Very good
39 reviews

Boarding

8.6

Comfort

8.1

Food

8.5

Overall

8.1

Entertainment

7.7

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Hainan Airlines
8.1
Very good
39 reviews
Hainan Airlines
8.1
Very good
39 reviews

Boarding

8.6

Comfort

8.1

Food

8.5

Overall

8.1

Entertainment

7.7

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
KLM
7.8
Good
1,358 reviews
Hainan Airlines
8.1
Very good
39 reviews

Boarding

8.6

Comfort

8.1

Food

8.5

Overall

8.1

Entertainment

7.7

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Austrian Airlines
7.6
Good
802 reviews
Hainan Airlines
8.1
Very good
39 reviews

Boarding

8.6

Comfort

8.1

Food

8.5

Overall

8.1

Entertainment

7.7

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Finnair
7.6
Good
1,290 reviews
Hainan Airlines
8.1
Very good
39 reviews

Boarding

8.6

Comfort

8.1

Food

8.5

Overall

8.1

Entertainment

7.7

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.

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.

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

    According to our current data, Hainan Airlines ($564), Shenzhen Airlines ($602), and China Eastern ($618) offers the cheapest pricing from London Heathrow Airport to Bangkok Suvarnabhumi Airport. Users have found that Hainan Airlines is 40% cheaper than the other options available to this destination.

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

    One-way options have recently been found by users for as low as $390 on Hainan Airlines. Other airlines that offer cheap prices include China Southern from $401 and Oman Air from $427 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, check out the most reliable airlines to get you to your destination on time: Thai Airways (62%), EVA Air (59%), Air Canada( 57%).

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

    While on average a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport is generally $2,425, our data shows the cheapest flight currently is $486. When looking at the most popular route, (London Heathrow - Bangkok Suvarnabhumi), you can expect to pay $572 for that flight.

  • 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 vacation 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, March is the cheapest month in which you can book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport (average of $953). Flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $1,574). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Sattahip
Chonburi
Kanchanaburi
Cha-am
Ko Samet
Phetchaburi
Pak Chong
Ko Lan

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Alternative routes for Heathrow to Suvarnabhumi

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Suvarnabhumi flights

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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapest$407Average$810FlexibilityNo cancel feeOn-time86%
Shenzhen AirlinesCheapest$537Average$565FlexibilityNo cancel feeOn-time63%
Air ChinaCheapest$537Average$614FlexibilityNo cancel feeOn-time67%
China EasternCheapest$539Average$635FlexibilityNo cancel feeOn-time62%
Hainan AirlinesCheapest$560Average$636FlexibilityNo cancel feeOn-time61%
China SouthernCheapest$577Average$653FlexibilityNo cancel feeOn-time69%
Air IndiaCheapest$590Average$848FlexibilityNo cancel feeOn-timeN/A
Gulf AirCheapest$626Average$689FlexibilityNo cancel feeOn-time67%
Oman AirCheapest$683Average$752FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$684Average$914FlexibilityNo cancel feeOn-time81%

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