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Cheap flights from Bangkok to London Heathrow Airport from £257

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
12 Aug — 19 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Bangkok to London Heathrow are usually found in November or February, booked 60 days in advance, depart on a Monday or Sunday and return on a Monday

Cheap flight deals from Bangkok to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Heathrow
Explore the most affordable flight options available from Bangkok to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 July 2026.

Sun 4/1015:55
BKK
-
LHR
1 stop32h 50m
Multiple Airlines
Fri 27/1117:40
LHR
-
BKK
1 stop17h 25m
Multiple Airlines
Deal found 12/7£612
Thu 27/818:05
BKK
-
LHR
1 stop31h 15m
Multiple Airlines
Thu 3/920:25
LHR
-
BKK
1 stop35h 10m
Multiple Airlines
Deal found 13/7£613
Sat 10/1007:30
BKK
-
LHR
1 stop17h 30m
Air India
Tue 20/1012:30
LHR
-
BKK
1 stop19h 05m
Air India
Deal found 9/7£614
Fri 21/819:55
BKK
-
LHR
1 stop29h 25m
Multiple Airlines
Sat 5/921:20
LHR
-
BKK
1 stop22h 55m
Multiple Airlines
Deal found 9/7£615
Sun 6/919:10
BKK
-
LHR
1 stop17h 20m
Multiple Airlines
Sat 19/921:20
LHR
-
BKK
1 stop17h 35m
Multiple Airlines
Deal found 9/7£615
Tue 4/808:20
BKK
-
LHR
1 stop17h 00m
Multiple Airlines
Mon 24/813:55
LHR
-
BKK
2 stops25h 00m
Multiple Airlines
Deal found 12/7£616
Mon 20/720:15
BKK
-
LHR
1 stop16h 40m
Gulf Air
Sat 5/922:05
LHR
-
BKK
1 stop29h 40m
Gulf Air
Deal found 10/7£617
Sun 19/719:20
BKK
-
LHR
2 stops30h 10m
Multiple Airlines
Wed 29/706:40
LHR
-
BKK
2 stops35h 30m
Multiple Airlines
Deal found 11/7£618
Thu 24/915:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Wed 28/1010:00
LHR
-
BKK
1 stop20h 40m
SAUDIA
Deal found 9/7£618
Wed 23/920:15
BKK
-
LHR
1 stop27h 55m
Multiple Airlines
Tue 27/1017:40
LHR
-
BKK
1 stop17h 25m
Multiple Airlines
Deal found 9/7£619
Sun 6/919:10
BKK
-
LHR
1 stop17h 20m
Multiple Airlines
Fri 2/1012:35
LHR
-
BKK
1 stop16h 40m
Multiple Airlines
Deal found 13/7£621
Mon 3/820:50
DMK
-
LHR
1 stop28h 05m
Multiple Airlines
Wed 19/820:25
LHR
-
DMK
2 stops21h 40m
Multiple Airlines
Deal found 9/7£663

Find flight deals from Bangkok to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) 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 13 July 2026.

Round-trip from

£612

One-way from

£257

Popular in

August

Cheapest in

November

Average price

£838
Air China
  • Air China
  • 4/10-27/11
  • 2 total stops
  • 50h 15m total
  • Bangkok to London
Search Deals
20/7
  • 20/7
  • 2 total stops
  • 39h 25m total
  • Bangkok to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok 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 858,174 searches. Data last updated 13 July 2026.
Use the filters below to find and compare flights from Bangkok to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 14/10

19:10-19:10

1 stop30h 00m

London Heathrow

Sun 18/10

08:25-06:55

1 stop16h 30m

£644

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 30/11

14:40-14:30

1 stop30h 50m

London Heathrow

Mon 7/12

20:55-11:45

1 stop31h 50m

£644

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 19/11

14:40-12:05

1 stop28h 25m

London Heathrow

Mon 23/11

08:50-11:45

1 stop19h 55m

£647

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 6/8

03:00-18:40

2 stops21h 40m

London Heathrow

Sun 9/8

21:20-21:55

1 stop18h 35m

£654

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Thu 10/9

23:50-14:25

1 stop20h 35m

London Heathrow

Mon 14/9

09:05-11:10

1 stop20h 05m

£723

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 27/10

22:55-13:50

1 stop21h 55m

London Heathrow

Sat 31/10

22:00-20:15

1 stop15h 15m

£732

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 1/11

12:35-14:35

2 stops33h 00m

London Heathrow

Sun 15/11

09:55-10:35

2 stops17h 40m

£758

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Fri 4/9

23:55-16:10

1 stop22h 15m

London Heathrow

Mon 21/9

20:40-11:10

1 stop32h 30m

£762

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Thu 3/9

23:50-18:40

1 stop24h 50m

London Heathrow

Mon 21/9

20:40-11:10

1 stop32h 30m

£774

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 27/10

15:55-17:30

2 stops32h 35m

London Heathrow

Sat 31/10

21:00-15:55

1 stop35h 55m

£781

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Showing 1-10 of 42 resultsSorted by cheapest first
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Best time to book a flight from Bangkok to Heathrow

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

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

Currently, February is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of £172). Flying from Bangkok to London Heathrow Airport in June is currently the most expensive (average of £404). 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 Bangkok 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 13 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok to London Heathrow Airport as you normally would.

Weekly flight availability from Bangkok to London Heathrow Airport

Explore weekly flight availability from Bangkok 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 13 July 2026.

The most flights from TH1 to LHR are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost for a return flight from Bangkok to London Heathrow Airport?

How often are flights from Bangkok to London delayed?

About 11% of weekly flights between Bangkok and London have experienced delays in the past year, with the average delay time being 93 minutes.

What is the most punctual flight time for Bangkok to London flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Bangkok to London flights?

Over the past year, Thai Airways have had the lowest number of delays on this route, with just 10% of flights being delayed.

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

The price you pay for your flight from Bangkok to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 58 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 13 July 2026.
Check out reviews from past customers who have flown with EVA Air,Emirates, andThai Airways from Bangkok to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,498 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
EVA Air
8.5
Very Good
1,498 reviews
EVA Air
8.5
Very Good
1,498 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Emirates
8.1
Very Good
3,617 reviews
EVA Air
8.5
Very Good
1,498 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Thai Airways
7.9
Good
409 reviews
EVA Air
8.5
Very Good
1,498 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Qatar Airways
7.3
Good
3,743 reviews
EVA Air
8.5
Very Good
1,498 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Etihad Airways
7.3
Good
1,477 reviews
EVA Air
8.5
Very Good
1,498 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

Related info for your journey

Find useful and relevant information for your journey from Bangkok to Heathrow. 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 Bangkok to London Heathrow Airport?

    For as low as £654, Oman Air can have you in London Heathrow Airport from Bangkok in 21h 40m. The distance from Bangkok to London Heathrow Airport is about 5947 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Our cheapest airline available from Bangkok to London Heathrow Airport is China Southern. Our recent data shows that you can find tickets from as low as £203 on this airline. Additional options worth looking into are Oman Air and Etihad Airways, starting at £287 and £399 round-trip. These flights start at 73% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Norse Atlantic UK, with whom users have recently found tickets for as low as £128. However, be on the lookout for offers from Scandinavian Airlines and Hainan Airlines, as they are both options that can get you from Bangkok to London Heathrow Airport for a low price.

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

    No one likes to see their flight delayed. When booking a flight from Bangkok to London Heathrow Airport consider choosing Air Canada (87%), TAP AIR PORTUGAL (86%) or Thai Airways (79%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £1,272 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is £291 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £518.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of £172). Flying from Bangkok to London Heathrow Airport in June is currently the most expensive (average of £404). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Watford
Eastbourne
Swindon
Southend-on-Sea
Poole
Kingston upon Thames
Southall
Aylesbury

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.

Top 10 airlines flying from Bangkok to Heathrow

Discover the top 10 airlines that operate flights from Bangkok 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 858,174 searches. Data last updated 13 July 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£203Average£522FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Oman AirCheapest£287Average£569FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Etihad AirwaysCheapest£399Average£629FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
SAUDIACheapest£476Average£531FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
China EasternCheapest£518Average£614FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest£547Average£699FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Gulf AirCheapest£620Average£650FlexibilityNo cancel feeOn-time67%
Search Gulf Air flights
EmiratesCheapest£650Average£714FlexibilityNo cancel feeOn-time75%
Search Emirates flights
British AirwaysCheapest£698Average£775FlexibilityNo cancel feeOn-time70%
Search British Airways flights
EVA AirCheapest£718Average£811FlexibilityNo cancel feeOn-time74%
Search EVA Air 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 Bangkok to Heathrow?

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 Heathrow from Bangkok today with Cheapflights!

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Bangkok.

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

Yes, we can. To see specific flights from Bangkok to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from Bangkok to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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