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Cheap flights from Bangkok to London Heathrow Airport from £248

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
16 Apr — 23 Apr1
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 61 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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 17 March 2026.

Thu 7/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Wed 20/522:00
LHR
-
BKK
1 stop30h 00m
Multiple Airlines
Deal found 13/3£513
Tue 28/422:45
BKK
-
LHR
1 stop25h 25m
Multiple Airlines
Tue 5/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 14/3£513
Sun 10/511:05
BKK
-
LHR
2 stops38h 25m
Multiple Airlines
Wed 3/621:20
LHR
-
BKK
1 stop17h 35m
Multiple Airlines
Deal found 14/3£514
Thu 11/611:20
BKK
-
LHR
1 stop38h 00m
Multiple Airlines
Mon 15/622:40
LHR
-
BKK
1 stop37h 40m
Multiple Airlines
Deal found 15/3£515
Tue 28/422:45
BKK
-
LHR
1 stop25h 25m
Multiple Airlines
Tue 26/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 12/3£516
Fri 1/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Wed 20/516:15
LHR
-
BKK
1 stop15h 30m
Multiple Airlines
Deal found 12/3£517
Wed 6/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Thu 14/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 17/3£518
Wed 29/420:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Wed 6/522:40
LHR
-
BKK
1 stop19h 30m
Multiple Airlines
Deal found 15/3£519
Mon 27/422:45
BKK
-
LHR
1 stop25h 25m
Multiple Airlines
Mon 4/516:15
LHR
-
BKK
1 stop15h 30m
Multiple Airlines
Deal found 13/3£519
Thu 7/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Tue 26/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 17/3£521
Mon 11/517:25
DMK
-
LHR
2 stops54h 40m
Multiple Airlines
Sun 24/522:05
LHR
-
DMK
1 stop21h 10m
Multiple Airlines
Deal found 16/3£579
Mon 6/420:50
DMK
-
LHR
2 stops21h 55m
Multiple Airlines
Sun 12/420:45
LHR
-
DMK
2 stops25h 55m
Multiple Airlines
Deal found 12/3£623

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 17 March 2026.

Round-trip from

£513

One-way from

£248

Popular in

April

Cheapest in

November

Average price

£794
Hainan Airlines
  • Hainan Airlines
  • 7/5-20/5
  • 2 total stops
  • 57h 30m total
  • Bangkok to London
Search Deals
21/4
  • 21/4
  • 2 total stops
  • 21h 55m total
  • Bangkok to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 17 March 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 9/9

19:10-19:10

1 stop30h 00m

London Heathrow

Wed 16/9

20:50-06:55

1 stop28h 05m

£567

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 16/5

20:50-18:40

2 stops51h 50m

London Heathrow

Sun 14/6

21:20-12:20

2 stops33h 00m

£580

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 14/5

19:10-06:30

1 stop17h 20m

London Heathrow

Sat 16/5

08:25-06:55

1 stop16h 30m

£603

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 29/3

19:10-06:30

1 stop17h 20m

London Heathrow

Fri 12/6

20:50-13:25

2 stops34h 35m

£675

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 7/8

07:05-09:10

1 stop32h 05m

London Heathrow

Sat 15/8

10:20-05:30

1 stop37h 10m

£683

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Thu 2/4

16:45-07:00

2 stops20h 15m

London Heathrow

Fri 17/4

09:30-13:00

2 stops21h 30m

£684

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 3/7

02:30-22:00

1 stop25h 30m

London Heathrow

Tue 21/7

13:40-13:25

1 stop17h 45m

£684

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 19/5

15:15-07:00

2 stops21h 45m

London Heathrow

Fri 5/6

09:30-16:20

2 stops24h 50m

£688

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 31/5

21:55-18:40

1 stop26h 45m

London Heathrow

Tue 30/6

21:20-22:15

3 stops42h 55m

£703

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 5/4

03:15-18:45

1 stop21h 30m

London Heathrow

Fri 10/4

09:30-12:10

1 stop20h 40m

£712

Flights are sorted by cheapest return flights first.

Deals found on 12/3

Showing 1-10 of 47 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

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

Use this chart to determine the optimal time to book a return flight from Bangkok to Heathrow. Price data was last updated on 13 March 2026.

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 61 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 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 £288). Flying from Bangkok to London Heathrow Airport in September is currently the most expensive (average of £575). 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 17 March 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 17 March 2026.

The most flights from TH1 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 often are flights from Bangkok to London delayed?

About 13% of weekly flights between Bangkok and London have experienced delays in the past year, with the average delay time being 91 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?

Wednesday 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, EVA Air have had the lowest number of delays on this route, with just 11% of flights being delayed.

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 17 March 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
1,376 reviews
Check prices

Food

8.1

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.5

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.
EVA Air
8.5
Very Good
1,376 reviews
EVA Air
8.5
Very Good
1,376 reviews
Check prices

Food

8.1

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.5

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.
Emirates
8.1
Very Good
3,543 reviews
EVA Air
8.5
Very Good
1,376 reviews
Check prices

Food

8.1

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.5

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.
Thai Airways
7.8
Good
392 reviews
EVA Air
8.5
Very Good
1,376 reviews
Check prices

Food

8.1

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.5

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.
Qatar Airways
7.4
Good
3,736 reviews
EVA Air
8.5
Very Good
1,376 reviews
Check prices

Food

8.1

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.5

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.
Etihad Airways
7.3
Good
1,426 reviews
EVA Air
8.5
Very Good
1,376 reviews
Check prices

Food

8.1

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.5

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 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 £567, Oman Air can have you in London Heathrow Airport from Bangkok in 30h. 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 Eastern. Our recent data shows that you can find tickets from as low as £166 on this airline. Additional options worth looking into are China Southern and Kuwait Airways, starting at £215 and £271 round-trip. These flights start at 78% 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 £129. 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 (90%), Thai Airways (78%) or EVA Air (71%) 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 £1,284 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is £394 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £486.

  • 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 £288). Flying from Bangkok to London Heathrow Airport in September is currently the most expensive (average of £575). 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
Milton Keynes
Wembley
Croydon
Northampton
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Romford
Ipswich
Swindon
Bedford

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 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£166Average£605FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£215Average£542FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Kuwait AirwaysCheapest£271Average£551FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Oman AirCheapest£290Average£588FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Austrian AirlinesCheapest£299Average£666FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air IndiaCheapest£336Average£664FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
SAUDIACheapest£492Average£560FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Etihad AirwaysCheapest£554Average£624FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest£597Average£709FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
SWISSCheapest£611Average£733FlexibilityNo cancel feeOn-time79%
Search SWISS 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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