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Cheap flights from Bangkok to London Heathrow Airport from £245

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
3 Sep — 10 Sep1
1 adult

Cheapflights Tip: The best prices from Bangkok to London Heathrow are usually found in March or May, booked 27 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap 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 29 August 2025.

Round-trip from

£525

One-way from

£245

Popular in

April

Cheapest in

March

Average price

£789
Hainan Airlines
  • Hainan Airlines
  • 12/10-20/10
  • 3 total stops
  • 52h 00m total
  • Bangkok to London
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24/9
  • 24/9
  • 2 total stops
  • 22h 15m total
  • Bangkok to London
Search Deals
High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 0% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Bangkok to Heathrow

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 29 August 2025.

Thu 4/921:55BKK - LHR
1 stop26h 45mChina Eastern
Thu 2/1021:20LHR - BKK
1 stop24h 45mChina Eastern
Deal found 29/8£524
Sun 12/1003:00BKK - LHR
1 stop22h 00mMultiple Airlines
Mon 20/1022:00LHR - BKK
2 stops30h 00mMultiple Airlines
Deal found 28/8£525
Tue 11/1102:10BKK - LHR
1 stop23h 05mMultiple Airlines
Wed 19/1117:40LHR - BKK
1 stop17h 25mMultiple Airlines
Deal found 27/8£526
Mon 29/919:30BKK - LHR
1 stop28h 20mMultiple Airlines
Sat 4/1022:40LHR - BKK
1 stop19h 30mMultiple Airlines
Deal found 28/8£526
Thu 16/1003:00BKK - LHR
1 stop22h 00mChina Southern
Tue 21/1022:10LHR - BKK
1 stop17h 50mChina Southern
Deal found 28/8£528
Sat 6/920:50BKK - LHR
2 stops27h 50mMultiple Airlines
Mon 15/922:05LHR - BKK
1 stop22h 10mMultiple Airlines
Deal found 29/8£528
Fri 10/1003:00BKK - LHR
2 stops43h 15mChina Southern
Tue 28/1022:00LHR - BKK
1 stop33h 30mChina Southern
Deal found 27/8£529
Thu 4/901:30BKK - LHR
1 stop25h 00mAir China
Fri 3/1020:25LHR - BKK
1 stop21h 40mAir China
Deal found 27/8£530
Wed 3/901:30BKK - LHR
1 stop25h 00mAir China
Thu 11/922:40LHR - BKK
1 stop37h 30mAir China
Deal found 28/8£531
Mon 3/1101:55BKK - LHR
1 stop22h 35mChina Eastern
Thu 20/1121:00LHR - BKK
1 stop21h 55mChina Eastern
Deal found 28/8£531
Sun 5/1003:00BKK - LHR
1 stop22h 00mChina Southern
Thu 27/1121:30LHR - BKK
2 stops37h 25mChina Southern
Deal found 28/8£532
Sun 7/919:35BKK - LHR
1 stop30h 55mAir China
Sun 19/1020:25LHR - BKK
1 stop21h 45mAir China
Deal found 28/8£533

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 29 August 2025.
Use the filters below to find and compare flights from Bangkok to London Heathrow Airport that are best for you.

Fly from

Bangkok

Fly to

Heathrow

Route

Depart

Return

Price

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 12/10

03:00-19:00

1 stop22h 00m

London Heathrow

Mon 20/10

22:00-10:00

2 stops30h 00m

£525

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 27/10

11:20-07:15

1 stop26h 55m

London Heathrow

Thu 30/10

21:35-12:30

1 stop31h 55m

£526

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 29/9

19:30-17:50

1 stop28h 20m

London Heathrow

Sat 4/10

22:40-00:10

1 stop19h 30m

£526

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 16/10

03:00-19:00

1 stop22h 00m

London Heathrow

Tue 21/10

22:10-22:00

1 stop17h 50m

£528

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 16/10

15:25-07:30

1 stop22h 05m

London Heathrow

Sun 2/11

22:05-23:30

1 stop18h 25m

£532

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 6/10

20:20-19:00

1 stop28h 40m

London Heathrow

Tue 25/11

21:30-01:05

2 stops20h 35m

£532

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 17/12

19:55-18:15

1 stop29h 20m

London Heathrow

Thu 8/1

22:00-22:30

1 stop17h 30m

£534

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 16/12

12:25-18:15

1 stop36h 50m

London Heathrow

Thu 8/1

22:00-22:30

1 stop17h 30m

£534

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 4/11

18:55-18:15

1 stop30h 20m

London Heathrow

Fri 21/11

17:40-00:10

1 stop23h 30m

£534

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 21/12

18:55-18:15

1 stop30h 20m

London Heathrow

Thu 8/1

22:00-22:30

1 stop17h 30m

£534

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 42 results
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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 22 August 2025.

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 27 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, January is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of £112). Flying from Bangkok to London Heathrow Airport in August is currently the most expensive (average of £164). 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 29 August 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 24% on flights from Bangkok to London Heathrow Airport by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Bangkok to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from Bangkok to Heathrow. Price data was last updated on 24 August 2025.

Travellers seeking maximum savings on their Bangkok to London Heathrow Airport flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 29 August 2025.

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

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 29 August 2025.
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
8.4
Very Good
1,235 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very Good
1,235 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Emirates
8.1
Very Good
3,322 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Thai Airways
7.8
Good
345 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Qatar Airways
7.4
Good
3,611 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
China Eastern
7.2
Good
164 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

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 £528, China Southern can have you in London Heathrow Airport from Bangkok in 22h. The distance from Bangkok to London Heathrow Airport is about 5947 mi.

  • 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 £236 on this airline. Additional options worth looking into are Air India and Air China, starting at £345 and £447 round-trip. These flights start at 68% lower than the current average price 3 months from now.

  • 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 EVA Air (84%), Thai Airways (81%) or Air Canada (75%) 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 £1,188 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 £485.

  • 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, January is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of £112). Flying from Bangkok to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£236Average£514FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest£345Average£653FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Air ChinaCheapest£447Average£519FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£496Average£556FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Kuwait AirwaysCheapest£508Average£584FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Turkish AirlinesCheapest£552Average£581FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
SWISSCheapest£555Average£655FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Etihad AirwaysCheapest£573Average£628FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Austrian AirlinesCheapest£573Average£675FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Vietnam AirlinesCheapest£584Average£589FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

Fly with Cheapflights

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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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