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Cheap flights from Bangkok to London Heathrow Airport from ฿11,142

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
22 Apr — 29 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 Wednesday 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 23 March 2026.

Fri 1/522:45
BKK
-
LHR
1 stop25h 25m
Multiple Airlines
Thu 7/522:10
LHR
-
BKK
1 stop19h 55m
Multiple Airlines
Deal found 21/3฿22,579
Sun 17/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Thu 28/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 20/3฿22,612
Sun 31/511:05
BKK
-
LHR
2 stops38h 25m
ไห่หนานแอร์ไลน์
Fri 12/622:00
LHR
-
BKK
2 stops30h 00m
ไห่หนานแอร์ไลน์
Deal found 20/3฿22,645
Sat 30/522:45
BKK
-
LHR
1 stop25h 25m
Multiple Airlines
Fri 12/622:00
LHR
-
BKK
2 stops30h 00m
Multiple Airlines
Deal found 20/3฿22,678
Tue 5/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Tue 12/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 21/3฿22,711
Mon 4/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Mon 11/516:15
LHR
-
BKK
1 stop15h 30m
Multiple Airlines
Deal found 19/3฿22,744
Wed 20/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Sat 30/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 19/3฿22,776
Sat 2/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Thu 7/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 21/3฿22,809
Sat 2/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Sun 10/522:10
LHR
-
BKK
1 stop19h 55m
Multiple Airlines
Deal found 22/3฿22,842
Sat 2/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Wed 13/516:15
LHR
-
BKK
1 stop15h 30m
Multiple Airlines
Deal found 22/3฿22,875
Fri 1/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Tue 26/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 22/3฿22,908
Wed 6/520:15
BKK
-
LHR
1 stop27h 30m
Multiple Airlines
Sun 17/522:10
LHR
-
BKK
1 stop19h 55m
Multiple Airlines
Deal found 18/3฿22,941

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 23 March 2026.

Round-trip from

฿22,579

One-way from

฿11,142

Popular in

April

Cheapest in

November

Average price

฿34,674
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 1/5-7/5
  • 2 total stops
  • 45h 20m 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 (฿53,621 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (฿10,469 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 17,341 searches. Data last updated 23 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

Sun 17/5

03:00-18:40

2 stops21h 40m

London Heathrow

Wed 27/5

14:45-18:05

2 stops21h 20m

฿26,030

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 3/5

03:15-12:45

1 stop15h 30m

London Heathrow

Mon 11/5

20:45-23:50

1 stop21h 05m

฿27,936

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 20/5

03:15-15:05

1 stop17h 50m

London Heathrow

Mon 25/5

20:45-18:10

1 stop15h 25m

฿28,397

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 9/4

02:15-16:10

1 stop19h 55m

London Heathrow

Mon 27/4

20:40-18:20

1 stop15h 40m

฿31,026

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 2/6

09:00-19:10

1 stop16h 10m

London Heathrow

Mon 15/6

08:25-13:25

2 stops23h 00m

฿32,078

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 11/7

14:20-19:10

1 stop34h 50m

London Heathrow

Sat 9/1

20:05-06:45

1 stop27h 40m

฿32,538

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 2/5

03:15-12:45

1 stop15h 30m

London Heathrow

Sat 1/8

21:45-11:50

1 stop32h 05m

฿32,998

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Thu 2/4

13:45-12:25

2 stops28h 40m

London Heathrow

Sun 5/4

20:40-11:05

2 stops32h 25m

฿34,904

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 18/4

02:15-16:10

1 stop19h 55m

London Heathrow

Sun 26/4

14:20-16:20

2 stops20h 00m

฿34,970
Fastest return journey

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 18/6

12:45-19:20

Nonstop12h 35m

London Heathrow

Mon 22/6

21:35-15:30

Nonstop11h 55m

฿38,749

Flights are sorted by cheapest return flights first.

Deals found on 18/3

Showing 1-10 of 43 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 ฿12,555). Flying from Bangkok to London Heathrow Airport in September is currently the most expensive (average of ฿25,110). 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 23 March 2026.

When flying from Bangkok to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

How often are flights from Bangkok to London delayed?

About 14% of weekly flights between Bangkok and London have experienced delays in the past year, with the average delay time being 92 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?

Sunday 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 12% 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 23 March 2026.
Get a feel of what it's like to fly with EVA Air,Emirates, andThai Airways from Bangkok to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,381 reviews
Check prices

Crew

8.6

Overall

8.5

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

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
1,381 reviews
EVA Air
8.5
Very Good
1,381 reviews
Check prices

Crew

8.6

Overall

8.5

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

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
3,541 reviews
EVA Air
8.5
Very Good
1,381 reviews
Check prices

Crew

8.6

Overall

8.5

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

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
394 reviews
EVA Air
8.5
Very Good
1,381 reviews
Check prices

Crew

8.6

Overall

8.5

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

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.
เอทิฮัดแอร์เวย์
7.3
Good
1,429 reviews
EVA Air
8.5
Very Good
1,381 reviews
Check prices

Crew

8.6

Overall

8.5

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

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.
บริติชแอร์เวย์
6.7
Okay
7,813 reviews
EVA Air
8.5
Very Good
1,381 reviews
Check prices

Crew

8.6

Overall

8.5

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

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?

    There are many flights that can get you from Bangkok to London Heathrow Airport in 15h 30m. Fly via China Eastern, เอทิฮัดแอร์เวย์, or Emirates to get the fastest option. Bangkok and London Heathrow Airport are separated by a distance of 9571 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Cheapflights users have booked flights from Bangkok to London Heathrow Airport return from ฿9,423. Other airlines that can offer you cheap pricing are คูเวตแอร์เวย์, from ฿11,052, and เอทิฮัดแอร์เวย์, from ฿13,234. China Southern is currently priced 71% below the average price you’ll pay for this route.

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

    The cheapet airlines for a one-way flight from Bangkok to London Heathrow Airport are สแกนดอเนเวียนแอร์ไลน์ (฿6,383), เอทิฮัดแอร์เวย์ (฿6,787), and ไห่หนานแอร์ไลน์ (฿7,403).

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

    Before booking your flight to London Heathrow Airport from Bangkok, have a look at the most reliable airlines to get you to your destination on time: แอร์แคนาดา (90%), Thai Airways (78%), EVA Air( 71%).

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

    On average you can expect to pay ฿67,174 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is ฿17,977 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at ฿22,086.

  • 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 ฿12,555). Flying from Bangkok to London Heathrow Airport in September is currently the most expensive (average of ฿25,110). 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
Brentford
Waterlooville

Browse thousands of different options on Cheapflights for your next trip

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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 17,341 searches. Data last updated 23 March 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest฿9,423Average฿24,006FlexibilityNo cancel feeOn-time69%
Search China Southern flights
คูเวตแอร์เวย์Cheapest฿11,052Average฿29,085FlexibilityNo cancel feeOn-time64%
Search คูเวตแอร์เวย์ flights
เอทิฮัดแอร์เวย์Cheapest฿13,234Average฿28,327FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
โอมานแอร์Cheapest฿13,529Average฿25,204FlexibilityNo cancel feeOn-time76%
Search โอมานแอร์ flights
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์Cheapest฿14,766Average฿31,577FlexibilityNo cancel feeOn-time79%
Search สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ flights
Air IndiaCheapest฿15,520Average฿32,369FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
FinnairCheapest฿18,675Average฿28,161FlexibilityNo cancel feeOn-time76%
Search Finnair flights
China EasternCheapest฿23,898Average฿27,107FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
เตอร์กิชแอร์ไลน์Cheapest฿25,138Average฿26,568FlexibilityNo cancel feeOn-time77%
Search เตอร์กิชแอร์ไลน์ flights
Qatar AirwaysCheapest฿26,876Average฿32,626FlexibilityNo cancel feeOn-time68%
Search Qatar Airways 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?

When you search for this flight from Bangkok to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to Heathrow from Bangkok by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Heathrow from Bangkok shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Bangkok to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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