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$342+ Cheap flights from Suvarnabhumi (BKK) to Heathrow (LHR)

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Bangkok Suvarnabhumi to London Heathrow are usually found in March or October, booked 70 days in advance, depart on a Friday or Saturday and return on a Monday

Cheap flight deals from Suvarnabhumi to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Suvarnabhumi (BKK) to Heathrow (LHR). 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 July 29, 2025.

Round-trip from

$759
(Kiwi.com)

One-way from

$342
(China Southern)

Popular in

April

Cheapest in

March

Average price

$1,030

Good round-trip deal

$956 or less

Good one-way deal

$394 or less
From Bangkok Suvarnabhumi to London Heathrow
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One-way flight from Bangkok Suvarnabhumi to London Heathrow
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 0% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Bangkok Suvarnabhumi to London Heathrow.
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Price to beat on a one-way flight from Bangkok Suvarnabhumi to London Heathrow.
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Find flight deals from Suvarnabhumi to Heathrow

Cheapest flights from Suvarnabhumi to Heathrow
Explore the most affordable flight options available from Suvarnabhumi to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/283:00 amBKK - LHR
1 stop22h 00mChina Southern
Sun 8/3110:10 pmLHR - BKK
1 stop17h 50mChina Southern
Deal found 7/29$759
This SAUDIA deal was found by Cheapflights users on 7/29. 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 SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/151:15 amBKK - LHR
1 stop22h 40mSAUDIA
Thu 1/157:10 pmLHR - BKK
1 stop21h 25mSAUDIA
Deal found 7/29$760
This Trip.com deal was found by Cheapflights users on 7/28. 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.
Sun 9/73:30 amBKK - LHR
1 stop15h 45mMultiple Airlines
Sun 9/1410:05 pmLHR - BKK
1 stop31h 05mMultiple Airlines
Deal found 7/28$763
This Kuwait Airways deal was found by Cheapflights users on 7/29. 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 Kuwait Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:10 amBKK - LHR
1 stop18h 35mKuwait Airways
Fri 1/1611:45 amLHR - BKK
1 stop15h 20mKuwait Airways
Deal found 7/29$772
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/312:10 amBKK - LHR
1 stop22h 30mChina Eastern
Fri 8/89:20 pmLHR - BKK
1 stop33h 10mChina Eastern
Deal found 7/29$781
This Trip.com deal was found by Cheapflights users on 7/29. 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.
Mon 9/227:40 pmBKK - LHR
1 stop17h 15mGulf Air
Mon 10/610:00 amLHR - BKK
1 stop17h 55mGulf Air
Deal found 7/29$828
This Vietnam Airlines deal was found by Cheapflights users on 7/29. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/227:30 pmBKK - LHR
1 stop28h 20mVietnam Airlines
Wed 11/1211:00 amLHR - BKK
1 stop20h 45mVietnam Airlines
Deal found 7/29$834
This Finnair deal was found by Cheapflights users on 7/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:05 amBKK - LHR
1 stop38h 05mFinnair
Sun 10/121:00 pmLHR - BKK
1 stop34h 30mFinnair
Deal found 7/27$840

Cheapflights Fare Finder

 
Customize your flight search to find flights from Suvarnabhumi to Heathrow 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 July 29, 2025.
Use the filters below to find and compare flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport that are best for you.

Fly from

Suvarnabhumi

Fly to

Heathrow

Route

Depart

Return

Price

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 8/28

3:00 am-7:00 pm

1 stop22h 00m

London Heathrow

Sun 8/31

10:10 pm-10:00 pm

1 stop17h 50m

$759

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 12/15

1:15 am-4:55 pm

1 stop22h 40m

London Heathrow

Sat 1/17

10:00 am-1:40 pm

1 stop20h 40m

$760

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 9/7

3:30 am-1:15 pm

1 stop15h 45m

London Heathrow

Sun 9/14

10:05 pm-11:10 am

1 stop31h 05m

$763

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 12/13

3:10 am-2:45 pm

1 stop18h 35m

London Heathrow

Fri 1/16

11:45 am-10:05 am

1 stop15h 20m

$772

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 8/8

2:10 am-6:40 pm

1 stop22h 30m

London Heathrow

Wed 8/13

9:20 pm-8:55 pm

1 stop17h 35m

$798

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 9/22

7:40 pm-6:55 am

1 stop17h 15m

London Heathrow

Mon 10/6

10:00 am-9:55 am

1 stop17h 55m

$828

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 9/22

7:30 pm-5:50 pm

1 stop28h 20m

London Heathrow

Wed 11/12

11:00 am-11:20 am

1 stop17h 20m

$834

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 10/8

7:05 am-3:10 pm

1 stop38h 05m

London Heathrow

Sun 10/12

1:00 pm-5:30 am

1 stop34h 30m

$840

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 8/10

8:50 pm-10:15 am

1 stop19h 25m

London Heathrow

Wed 8/27

9:05 pm-7:35 pm

1 stop16h 30m

$856

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 8/6

3:00 am-7:00 pm

1 stop22h 00m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 21 results
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The best insider tips for Bangkok Suvarnabhumi Airport to London Heathrow 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 Bangkok Suvarnabhumi Airport to London Heathrow Airport trip
Airports
BKK

Allow at least 90 minutes for security and immigration at BKK, especially during busy periods, to ensure a smooth departure.

Read more about BKKby Robert Schrader
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station for easy city access.

Read more about LHRby Ramsey Qubein
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 Suvarnabhumi to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Suvarnabhumi 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 Bangkok Suvarnabhumi Airport to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Suvarnabhumi to Heathrow. Price data was last updated on July 25, 2025.

The best time to book flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to London Heathrow Airport (average of $661). Flying from Bangkok Suvarnabhumi Airport to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 BKK to LHR?

Find hourly flight availability from Suvarnabhumi to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

It’s optimal to fly from Bangkok Suvarnabhumi Airport to London Heathrow Airport in the afternoon. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Bangkok Suvarnabhumi Airport to London Heathrow Airport

Explore weekly flight availability from Suvarnabhumi to Heathrow. 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 July 29, 2025.

The most flights from BKK to LHR are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Bangkok Suvarnabhumi Airport to London Heathrow Airport?

What’s the top layover airport for flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport?

Share of 1-stop round-trip flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Helsinki (HEL) – chosen by Cheapflights users on 50% of 1-stop itineraries from Bangkok Suvarnabhumi Airport to London Heathrow Airport on Cheapflights.

What’s the cheapest layover airport for flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport?

Average round-trip fare for 1-stop flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Helsinki (HEL) is the most affordable 1-stop option, with an average round-trip price of $775.

What’s the fastest layover option from Bangkok Suvarnabhumi Airport to London Heathrow Airport?

Shortest average travel time for 1-stop one-way flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Munich (MUC) have the shortest average one-way travel time for 1-stop routes: 3h 45m.

Which airport typically offers the quickest layover for flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport?

Average layover duration for 1-stop one-way flights from Bangkok Suvarnabhumi Airport to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Munich (MUC) offer the fastest connection on this route, with an average layover time of 1h 35m.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Hainan Airlines, China Southern, and Finnair from Bangkok Suvarnabhumi Airport to London Heathrow 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.
Hainan Airlines
8.2
Very good
43 reviews

Boarding

8.5

Entertainment

7.4

Comfort

8.0

Crew

8.8

Food

8.4

Overall

8.2

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
8.2
Very good
43 reviews
Hainan Airlines
8.2
Very good
43 reviews

Boarding

8.5

Entertainment

7.4

Comfort

8.0

Crew

8.8

Food

8.4

Overall

8.2

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.
China Southern
7.6
Good
103 reviews
Hainan Airlines
8.2
Very good
43 reviews

Boarding

8.5

Entertainment

7.4

Comfort

8.0

Crew

8.8

Food

8.4

Overall

8.2

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
1,316 reviews
Hainan Airlines
8.2
Very good
43 reviews

Boarding

8.5

Entertainment

7.4

Comfort

8.0

Crew

8.8

Food

8.4

Overall

8.2

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.
Vietnam Airlines
7.5
Good
196 reviews
Hainan Airlines
8.2
Very good
43 reviews

Boarding

8.5

Entertainment

7.4

Comfort

8.0

Crew

8.8

Food

8.4

Overall

8.2

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 Suvarnabhumi to Heathrow. 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 Bangkok Suvarnabhumi Airport to London Heathrow Airport round-trip?

    Our cheapest airline available from Bangkok Suvarnabhumi Airport to London Heathrow Airport is China Southern. Our recent data shows that you can find tickets from as low as $759 on this airline. Additional options worth looking into are SAUDIA and Kuwait Airways, starting at $760 and $772 round-trip. Users have found that China Southern is 25% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Bangkok Suvarnabhumi Airport to London Heathrow Airport are China Southern ($342), Vietnam Airlines ($350), and China Eastern ($355).

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

    No one likes to see their flight delayed. When booking a flight from Bangkok Suvarnabhumi Airport to London Heathrow Airport consider choosing Air Canada (74%), Thai Airways (70%) or EVA Air (68%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Bangkok Suvarnabhumi Airport to London Heathrow Airport? While on average our users pay $1,867, our data indicates the cheapest price to be $390. The most popular route (Bangkok Suvarnabhumi - London Heathrow), is priced around $676.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Suvarnabhumi to Heathrow 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 Bangkok Suvarnabhumi Airport to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to London Heathrow Airport (average of $661). Flying from Bangkok Suvarnabhumi Airport to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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
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Harrow
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Orpington
Watford
Northampton
Gatwick
Borehamwood
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Alternative routes for Suvarnabhumi to Heathrow

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

Top 9 airlines flying from Suvarnabhumi to Heathrow

Discover the top 9 airlines that operate flights from Suvarnabhumi to Heathrow. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$678Average$779FlexibilityNo cancel feeOn-time62%
Etihad AirwaysCheapest$723Average$793FlexibilityNo cancel feeOn-time75%
FinnairCheapest$777Average$904FlexibilityNo cancel feeOn-time76%
SWISSCheapest$808Average$957FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$817Average$951FlexibilityNo cancel feeOn-time78%
EmiratesCheapest$860Average$1,038FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$882Average$980FlexibilityNo cancel feeOn-time68%
EVA AirCheapest$959Average$1,075FlexibilityNo cancel feeOn-time74%
Thai AirwaysCheapest$1,008Average$1,267FlexibilityNo cancel feeOn-time77%

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