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Cheap flights from Thailand to London Heathrow Airport from £170

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
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Heathrow

Keep the following information in mind while searching for Thailand to Heathrow flight deals. Data was last updated 27 November 2025.

Round-trip from

£494

One-way from

£170

Popular in

January

Cheapest in

November

Average price

£650

Good round-trip deal

£738 or less

Good one-way deal

£337 or less
Air India
  • Air India
  • 10/3-18/3
  • 2 total stops
  • 42h 40m total
  • Thailand to London
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5/12
  • 5/12
  • 1 total stop
  • 38h 40m total
  • Thailand to London
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Thailand to London Heathrow.
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Price to beat on a one-way flight from Thailand to London Heathrow.
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Find flight deals from Thailand to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Heathrow
Explore the most affordable flight options available from Thailand to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Sun 21/1216:10BKK - LHR
1 stop24h 25mMultiple Airlines
Mon 12/121:00LHR - BKK
1 stop18h 25mMultiple Airlines
Deal found 26/11£495
Tue 16/1202:55BKK - LHR
1 stop16h 10mMultiple Airlines
Mon 12/121:00LHR - BKK
1 stop18h 25mMultiple Airlines
Deal found 26/11£495
Fri 26/1208:55BKK - LHR
1 stop16h 15mMultiple Airlines
Thu 8/106:40LHR - BKK
2 stops20h 10mMultiple Airlines
Deal found 25/11£496
Fri 12/1202:55BKK - LHR
1 stop16h 10mMultiple Airlines
Wed 13/506:50LHR - BKK
2 stops23h 30mMultiple Airlines
Deal found 25/11£497
Thu 11/1208:55BKK - LHR
1 stop16h 15mMultiple Airlines
Fri 15/520:50LHR - BKK
1 stop14h 55mMultiple Airlines
Deal found 25/11£498
Tue 25/1121:05BKK - LHR
2 stops27h 25mChina Eastern
Tue 13/121:00LHR - BKK
2 stops21h 15mChina Eastern
Deal found 25/11£498
Fri 26/1208:55BKK - LHR
1 stop16h 15mMultiple Airlines
Sat 10/108:40LHR - BKK
2 stops18h 10mMultiple Airlines
Deal found 25/11£499
Sun 21/1216:10BKK - LHR
1 stop24h 25mMultiple Airlines
Tue 13/121:00LHR - BKK
1 stop18h 25mMultiple Airlines
Deal found 26/11£501
Mon 22/1202:55BKK - LHR
1 stop16h 10mMultiple Airlines
Mon 2/208:25LHR - BKK
1 stop15h 20mMultiple Airlines
Deal found 25/11£502
Mon 8/1201:55BKK - LHR
1 stop22h 35mMultiple Airlines
Sun 17/520:50LHR - BKK
1 stop14h 55mMultiple Airlines
Deal found 25/11£504
Tue 23/1202:55BKK - LHR
1 stop16h 10mMultiple Airlines
Thu 8/121:00LHR - BKK
1 stop20h 55mMultiple Airlines
Deal found 25/11£505
Sun 21/1216:10BKK - LHR
1 stop24h 25mMultiple Airlines
Wed 14/121:00LHR - BKK
1 stop18h 25mMultiple Airlines
Deal found 26/11£505

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand 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 27 November 2025.
Use the filters below to find and compare flights from Thailand to London Heathrow Airport that are best for you.

Fly from

Thailand

Fly to

Heathrow

Route

Depart

Return

Price

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Tue 23/12

22:05-18:10

2 stops27h 05m

London Heathrow

Tue 30/12

22:10-12:45

1 stop31h 35m

£535

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 13/12

08:50-06:40

1 stop28h 50m

London Heathrow

Thu 19/2

20:55-06:05

1 stop26h 10m

£536

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 14/12

08:50-18:10

1 stop16h 20m

London Heathrow

Thu 19/2

20:55-06:05

1 stop26h 10m

£536

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 25/5

02:55-15:15

1 stop18h 20m

London Heathrow

Thu 28/5

14:45-18:15

1 stop21h 30m

£540

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Wed 14/1

13:35-06:40

2 stops24h 05m

London Heathrow

Wed 21/1

08:50-16:35

2 stops24h 45m

£542

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Fri 23/1

09:10-20:30

1 stop18h 20m

London Heathrow

Fri 6/2

21:00-22:45

1 stop18h 45m

£558

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 23/12

23:00-20:30

2 stops28h 30m

London Heathrow

Tue 30/12

21:05-04:25

2 stops24h 20m

£558

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 15/3

08:50-18:10

1 stop16h 20m

London Heathrow

Wed 24/6

09:30-05:55

1 stop14h 25m

£568

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 13/12

14:30-17:30

3 stops34h 00m

London Heathrow

Thu 19/2

13:55-06:05

1 stop33h 10m

£571

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Tue 24/2

21:15-13:45

2 stops23h 30m

London Heathrow

Tue 10/3

15:45-21:45

2 stops23h 00m

£573

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 60 results
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Best time to book a flight from Thailand to Heathrow

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

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

Currently, March is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £309). Flying from Thailand to London Heathrow Airport in January is currently the most expensive (average of £618). 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 TH to LHR?

Find hourly flight availability from Thailand 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 27 November 2025.

When flying from Thailand to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 12% versus a flight in the evening.

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

Use this chart to determine the cheapest time to fly return from Thailand to Heathrow. Price data was last updated on 25 November 2025.

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

Weekly flight availability from Thailand to London Heathrow Airport

Explore weekly flight availability from Thailand 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 27 November 2025.

The most flights from TH0 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 Thailand to London delayed?

About 15% of weekly flights between Thailand and London have experienced delays in the past year, with the average delay time being 89 minutes.

What is the most punctual flight time for Thailand 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?

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

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

Over the past year, EVA Air have had the lowest number of delays on this route, with just 10% 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 27 November 2025.
Check out reviews from past customers who have flown with EVA Air, Emirates, andThai Airways from Thailand 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
1,284 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

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
1,284 reviews
EVA Air
8.4
Very Good
1,284 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

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
3,421 reviews
EVA Air
8.4
Very Good
1,284 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

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
362 reviews
EVA Air
8.4
Very Good
1,284 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

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
3,675 reviews
EVA Air
8.4
Very Good
1,284 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

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
1,312 reviews
EVA Air
8.4
Very Good
1,284 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

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 Thailand 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 Thailand to London Heathrow Airport?

    For as low as £621, Etihad Airways can have you in London Heathrow Airport from Thailand in 26h 45m. Thailand and London Heathrow Airport are separated by a distance of 5947 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is China Eastern, with whom users have recently found tickets for as low as £182. However, be on the lookout for offers from Etihad Airways and Hainan Airlines, as they are both options that can get you from Thailand to London Heathrow Airport for a low price.

  • What are the most popular routes from Thailand to London Heathrow Airport?

    The most popular flight routes from Thailand to London Heathrow Airport are Bangkok Suvarnabhumi - London Heathrow, Bangkok Don Mueang Intl - London Heathrow and Phuket City - London Heathrow.

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

    No one likes to see their flight delayed. When booking a flight from Thailand to London Heathrow Airport consider choosing Air Canada (92%), Thai Airways (81%) or EVA Air (76%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £865 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £334 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £437.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £309). Flying from Thailand to London Heathrow Airport in January is currently the most expensive (average of £618). 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
Slough
Croydon
Hounslow
Northampton
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Swindon
Crawley
Romford
Chichester
Bedford

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Alternative routes for Thailand to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Thailand to Heathrow

Discover the top 10 airlines that operate flights from Thailand 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£242Average£527FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest£370Average£668FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Austrian AirlinesCheapest£461Average£680FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
SAUDIACheapest£495Average£563FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
China EasternCheapest£514Average£624FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Kuwait AirwaysCheapest£520Average£597FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Air ChinaCheapest£520Average£559FlexibilityNo cancel feeOn-time67%
Search Air China flights
Turkish AirlinesCheapest£565Average£595FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
SWISSCheapest£568Average£713FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Malaysia AirlinesCheapest£569Average£592FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines 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 Thailand to Heathrow?

Cheapflights helps you search for flights from Thailand to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Thailand to Heathrow.

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

Certainly. Search results for flights to Heathrow from Thailand 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 Thailand to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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