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Cheap flights from Thailand to London Heathrow Airport from £172

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
16 Jul — 23 Jul1
1 adult

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 11 July 2025.

Round-trip from

£509

One-way from

£172

Popular in

January

Cheapest in

October

Average price

£695

Good round-trip deal

£726 or less

Good one-way deal

£288 or less
China Southern
  • China Southern
  • 28/7-13/8
  • 2 total stops
  • 67h 50m total
  • Thailand to London
Search Deals
Oman Air
  • Oman Air
  • 18/9
  • 1 total stop
  • 28h 20m total
  • Thailand to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Thailand to London Heathrow.
Search Deals
Price to beat on a one-way flight from Thailand to London Heathrow.
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Find flight deals from Thailand to Heathrow

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 11 July 2025.

Mon 28/716:40HKT - LHR
1 stop32h 20mChina Southern
Wed 13/822:10LHR - HKT
1 stop35h 30mChina Southern
Deal found 11/7£509
Wed 1/1018:05HKT - LHR
1 stop28h 30mMalaysia Airlines
Wed 8/1021:35LHR - HKT
1 stop30h 10mMalaysia Airlines
Deal found 9/7£529
Mon 15/920:50HKT - LHR
1 stop28h 20mMultiple Airlines
Tue 30/913:15LHR - HKT
1 stop23h 50mMultiple Airlines
Deal found 11/7£556
Thu 30/1007:35BKK - LHR
2 stops31h 05mMultiple Airlines
Sun 23/1121:00LHR - BKK
1 stop32h 20mMultiple Airlines
Deal found 9/7£564
Sun 5/1001:30BKK - LHR
1 stop24h 00mHainan Airlines
Mon 10/1121:00LHR - BKK
1 stop30h 05mHainan Airlines
Deal found 9/7£564
Wed 20/803:00BKK - LHR
1 stop22h 00mChina Southern
Sun 31/821:00LHR - BKK
2 stops22h 30mChina Southern
Deal found 8/7£566
Sun 19/1001:30BKK - LHR
1 stop25h 00mAir China
Sat 1/1121:35LHR - BKK
1 stop31h 55mAir China
Deal found 9/7£567
Wed 23/705:05BKK - LHR
1 stop19h 35mChina Eastern
Mon 4/821:20LHR - BKK
1 stop17h 35mChina Eastern
Deal found 11/7£569
Mon 15/903:25BKK - LHR
1 stop18h 30mKuwait Airways
Wed 17/911:45LHR - BKK
1 stop16h 35mKuwait Airways
Deal found 9/7£580
Fri 18/709:05BKK - LHR
1 stop27h 55mEtihad Airways
Wed 15/1009:30LHR - BKK
1 stop15h 50mEtihad Airways
Deal found 10/7£582
Tue 30/900:55HKT - LHR
1 stop17h 50mEtihad Airways
Wed 8/1021:45LHR - HKT
1 stop27h 55mEtihad Airways
Deal found 9/7£599
Mon 3/1107:00USM - LHR
2 stops33h 35mMultiple Airlines
Sat 15/1106:00LHR - USM
2 stops21h 50mMultiple Airlines
Deal found 10/7£610

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 11 July 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

Mon 28/7

16:40-19:00

1 stop32h 20m

London Heathrow

Wed 13/8

22:10-15:40

1 stop35h 30m

£509

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Wed 1/10

18:05-16:35

1 stop28h 30m

London Heathrow

Wed 8/10

21:35-09:45

1 stop30h 10m

£529

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Mon 15/9

20:50-19:10

1 stop28h 20m

London Heathrow

Tue 30/9

13:15-19:05

1 stop23h 50m

£556

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 30/10

07:35-07:40

2 stops31h 05m

London Heathrow

Sun 23/11

21:00-12:20

1 stop32h 20m

£564

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 5/10

01:30-19:30

1 stop24h 00m

London Heathrow

Mon 10/11

21:00-10:05

1 stop30h 05m

£564

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 20/8

03:00-19:00

1 stop22h 00m

London Heathrow

Sun 31/8

21:00-01:30

2 stops22h 30m

£566

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 19/10

01:30-20:30

1 stop25h 00m

London Heathrow

Sat 1/11

21:35-12:30

1 stop31h 55m

£567

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 23/7

05:05-18:40

1 stop19h 35m

London Heathrow

Mon 4/8

21:20-20:55

1 stop17h 35m

£569

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 15/9

03:25-15:55

1 stop18h 30m

London Heathrow

Fri 19/9

11:45-10:20

1 stop16h 35m

£580

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 19/9

09:30-18:45

1 stop15h 15m

London Heathrow

Sat 27/9

21:45-18:50

1 stop15h 05m

£582

Flights are sorted by cheapest return flights first.

Deals found on 10/7

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, January is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £112). Flying from Thailand 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 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 11 July 2025.

When flying from Thailand 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 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 11 July 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).

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 11 July 2025.
Check out reviews from past customers who have flown with EVA Air, Korean Air, andChina Airlines 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
1,215 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,215 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very Good
1,105 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very Good
744 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Hainan Airlines
8.2
Very Good
41 reviews
EVA Air
8.4
Very Good
1,215 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

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

    The cheapest airline one-way is Oman Air, with whom users have recently found tickets for as low as £172. However, be on the lookout for offers from Etihad Airways and IndiGo, 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 Ko Samui - 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 EVA Air (58%), Thai Airways (58%) or Air Canada (58%) 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 £1,172 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £285 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £456.

  • 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, January is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £112). Flying from Thailand 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 Thailand?

Book flights to Thailand if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Hayes
Ipswich
Folkestone
Southend-on-Sea
Watford
Winchester
Swindon
Maidstone

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.

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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£235Average£483FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest£343Average£649FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Air ChinaCheapest£444Average£525FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£493Average£547FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Kuwait AirwaysCheapest£505Average£587FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Singapore AirlinesCheapest£535Average£607FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Turkish AirlinesCheapest£549Average£578FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Austrian AirlinesCheapest£551Average£668FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
SWISSCheapest£551Average£650FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Malaysia AirlinesCheapest£552Average£578FlexibilityNo 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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