Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Bangkok to London Heathrow Airport from £174

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

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

Find 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 7 November 2025.

Tue 11/1108:20BKK - LHR
1 stop17h 15mChina Southern
Tue 18/1121:30LHR - BKK
2 stops29h 40mChina Southern
Deal found 5/11£517
Tue 11/1101:55BKK - LHR
1 stop22h 35mMultiple Airlines
Fri 21/1120:05LHR - BKK
1 stop14h 40mMultiple Airlines
Deal found 5/11£519
Sun 9/1109:15BKK - LHR
1 stop19h 05mMultiple Airlines
Tue 11/1121:05LHR - BKK
1 stop22h 30mMultiple Airlines
Deal found 5/11£519
Mon 10/1115:20BKK - LHR
1 stop75h 55mSAUDIA
Thu 13/1122:05LHR - BKK
1 stop18h 25mSAUDIA
Deal found 5/11£521
Mon 10/1119:15BKK - LHR
2 stops30h 20mChina Southern
Thu 20/1122:00LHR - BKK
1 stop29h 10mChina Southern
Deal found 5/11£522
Wed 10/1201:15BKK - LHR
1 stop26h 05mSAUDIA
Thu 8/122:05LHR - BKK
1 stop18h 25mSAUDIA
Deal found 6/11£522
Thu 6/1119:10BKK - LHR
2 stops29h 25mHainan Airlines
Sun 9/1121:15LHR - BKK
1 stop29h 50mHainan Airlines
Deal found 5/11£524
Thu 13/1113:55BKK - LHR
1 stop35h 40mChina Southern
Wed 19/1117:15LHR - BKK
2 stops24h 50mChina Southern
Deal found 5/11£525
Sat 8/1111:10BKK - LHR
1 stop37h 45mHainan Airlines
Sun 16/1121:15LHR - BKK
1 stop37h 50mHainan Airlines
Deal found 7/11£525
Fri 7/1119:30BKK - LHR
1 stop29h 20mMultiple Airlines
Mon 10/1121:00LHR - BKK
2 stops30h 05mMultiple Airlines
Deal found 6/11£526
Thu 13/1111:10BKK - LHR
2 stops37h 25mHainan Airlines
Mon 17/1121:00LHR - BKK
2 stops30h 05mHainan Airlines
Deal found 6/11£527
Wed 12/1120:00DMK - LHR
2 stops28h 30mMultiple Airlines
Sun 16/1121:10LHR - DMK
1 stop21h 40mMultiple Airlines
Deal found 6/11£585

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 7 November 2025.

Round-trip from

£518

One-way from

£174

Popular in

April

Cheapest in

November

Average price

£687
SAUDIA
  • SAUDIA
  • 27/1-29/1
  • 2 total stops
  • 41h 35m total
  • Bangkok to London
Search Deals
5/12
  • 5/12
  • 1 total stop
  • 38h 40m total
  • Bangkok to London
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£0 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 November 2025
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 7 November 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

Thu 12/2

15:20-07:30

1 stop23h 10m

London Heathrow

Tue 24/2

14:15-13:40

1 stop16h 25m

£528

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 8/2

15:20-07:30

1 stop23h 10m

London Heathrow

Tue 17/2

22:05-23:30

1 stop18h 25m

£529

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 12/2

15:20-07:30

1 stop23h 10m

London Heathrow

Thu 26/2

14:15-13:40

1 stop16h 25m

£540

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 14/2

15:20-07:30

1 stop23h 10m

London Heathrow

Tue 24/2

14:15-13:40

1 stop16h 25m

£551

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 14/2

15:20-07:30

1 stop23h 10m

London Heathrow

Sun 1/3

22:05-23:30

1 stop18h 25m

£551

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 12/2

15:20-07:30

1 stop23h 10m

London Heathrow

Fri 27/2

10:00-13:40

1 stop20h 40m

£551

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 16/2

01:15-12:15

1 stop18h 00m

London Heathrow

Sun 1/3

22:05-23:30

1 stop18h 25m

£554

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 6/2

01:15-12:15

1 stop18h 00m

London Heathrow

Sun 22/2

17:00-23:30

1 stop23h 30m

£564

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 8/2

20:05-15:25

1 stop26h 20m

London Heathrow

Sat 21/2

21:25-23:10

1 stop18h 45m

£567

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 8/2

20:05-15:25

1 stop26h 20m

London Heathrow

Mon 23/2

21:25-23:10

1 stop18h 45m

£567

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 42 results
1
2
3
...
5

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 31 October 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, March is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of £502). Flying from Bangkok to London Heathrow Airport in January is currently the most expensive (average of £622). 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 7 November 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 23% 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 2 November 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 7 November 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 7 November 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
1,272 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
EVA Air
8.4
Very Good
1,272 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Emirates
8.1
Very Good
3,402 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Thai Airways
7.8
Good
361 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Qatar Airways
7.4
Good
3,661 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Etihad Airways
7.4
Good
1,285 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.

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, SAUDIA can have you in London Heathrow Airport from Bangkok in 23h 10m. 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 £243 on this airline. Additional options worth looking into are Air India and Austrian Airlines, starting at £356 and £465 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 Air Canada (91%), Thai Airways (74%) or EVA Air (65%) 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 £868 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is £337 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £484.

  • 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, March is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of £502). Flying from Bangkok to London Heathrow Airport in January is currently the most expensive (average of £622). 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
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£243Average£532FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest£356Average£667FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Austrian AirlinesCheapest£465Average£685FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
SAUDIACheapest£487Average£568FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
China EasternCheapest£518Average£610FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Kuwait AirwaysCheapest£525Average£602FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Turkish AirlinesCheapest£570Average£600FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
SWISSCheapest£572Average£719FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Malaysia AirlinesCheapest£573Average£597FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£590Average£630FlexibilityNo cancel feeOn-time75%
Search Etihad 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?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.