Cheap flights from Thailand to London Heathrow Airport from ฿7,603

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
23 Jul — 30 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 18 July 2025.

Round-trip from

฿22,613

One-way from

฿7,603

Popular in

January

Cheapest in

October

Average price

฿30,833

Good round-trip deal

฿33,116 or less

Good one-way deal

฿13,261 or less
China Southern
  • China Southern
  • 20/8-28/8
  • 2 total stops
  • 61h 00m total
  • Thailand to London
โอมานแอร์
  • โอมานแอร์
  • 18/9
  • 1 total stop
  • 28h 20m total
  • Thailand to London
Highest demand for flights based on searches. 5% potential increase in price (฿61,999 potential increase over avg. return price).
Cheapest flight prices on average. 0% potential price decrease (฿9,870 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Thailand to London Heathrow.
Price to beat on a one-way flight from Thailand to London Heathrow.

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 18 July 2025.

Wed 20/823:30HKT - LHR
1 stop25h 30mChina Southern
Thu 28/822:10LHR - HKT
1 stop35h 30mChina Southern
Deal found 16/7฿22,613
Tue 4/1119:10HKT - LHR
1 stop30h 15mMultiple Airlines
Sun 9/1121:05LHR - HKT
1 stop28h 05mMultiple Airlines
Deal found 17/7฿22,971
Wed 1/1018:05HKT - LHR
1 stop28h 30mMalaysia Airlines
Wed 8/1021:35LHR - HKT
1 stop33h 45mMalaysia Airlines
Deal found 17/7฿23,718
Tue 30/900:55HKT - LHR
1 stop23h 50mเอทิฮัดแอร์เวย์
Mon 1/1219:20LHR - HKT
1 stop21h 15mเอทิฮัดแอร์เวย์
Deal found 17/7฿24,985
Wed 29/1012:15BKK - LHR
1 stop26h 25mเคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
Thu 29/110:00LHR - BKK
1 stop14h 10mเคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
Deal found 18/7฿25,148
Thu 7/801:30BKK - LHR
1 stop24h 00mไห่หนานแอร์ไลน์
Fri 29/822:00LHR - BKK
1 stop30h 00mไห่หนานแอร์ไลน์
Deal found 17/7฿25,180
Wed 20/820:15BKK - LHR
2 stops28h 45mMultiple Airlines
Fri 22/822:05LHR - BKK
1 stop31h 05mMultiple Airlines
Deal found 18/7฿25,213
Thu 13/1115:30DMK - LHR
2 stops23h 35mMultiple Airlines
Wed 19/1117:30LHR - DMK
2 stops21h 35mMultiple Airlines
Deal found 17/7฿25,245
Tue 5/808:20BKK - LHR
1 stop16h 40mChina Southern
Mon 6/1022:10LHR - BKK
1 stop17h 50mChina Southern
Deal found 17/7฿25,245
Sun 14/1201:30BKK - LHR
1 stop23h 20mAir China
Sat 27/1221:35LHR - BKK
1 stop31h 55mAir China
Deal found 18/7฿25,278
Fri 18/701:50BKK - LHR
1 stop16h 50mซาอุเดียแอร์ไลน์
Wed 8/1010:10LHR - BKK
1 stop21h 35mซาอุเดียแอร์ไลน์
Deal found 17/7฿25,440
Sat 13/1203:10BKK - LHR
1 stop18h 35mคูเวตแอร์เวย์
Fri 2/111:45LHR - BKK
1 stop15h 20mคูเวตแอร์เวย์
Deal found 16/7฿25,635

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 17,341 searches. Data last updated 18 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

Wed 20/8

23:30-19:00

1 stop25h 30m

London Heathrow

Thu 28/8

22:10-15:40

1 stop35h 30m

฿22,613

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Tue 4/11

19:10-18:25

1 stop30h 15m

London Heathrow

Sun 9/11

21:05-08:10

1 stop28h 05m

฿22,971

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Wed 1/10

18:05-16:35

1 stop28h 30m

London Heathrow

Wed 8/10

21:35-13:20

1 stop33h 45m

฿23,718

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Tue 30/9

00:55-18:45

1 stop23h 50m

London Heathrow

Mon 1/12

19:20-23:35

1 stop21h 15m

฿24,985

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 29/10

12:15-07:40

1 stop26h 25m

London Heathrow

Thu 29/1

10:00-07:10

1 stop14h 10m

฿25,148

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 7/8

01:30-19:30

1 stop24h 00m

London Heathrow

Fri 29/8

22:00-10:00

1 stop30h 00m

฿25,180

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 20/8

20:15-19:00

2 stops28h 45m

London Heathrow

Fri 22/8

22:05-11:10

1 stop31h 05m

฿25,213

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 5/8

08:20-19:00

1 stop16h 40m

London Heathrow

Mon 6/10

22:10-22:00

1 stop17h 50m

฿25,245

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Thu 13/11

15:30-08:05

2 stops23h 35m

London Heathrow

Wed 19/11

17:30-22:05

2 stops21h 35m

฿25,245

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 14/12

01:30-17:50

1 stop23h 20m

London Heathrow

Sat 27/12

21:35-12:30

1 stop31h 55m

฿25,278

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 59 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, December is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of ฿810). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of ฿1,025). 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 18 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Thailand to London Heathrow Airport as you normally would.

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 18 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 18 July 2025.
Get a feel of what it's like to fly with EVA Air, ไห่หนานแอร์ไลน์, andChina Airlines from Thailand 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.

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

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

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

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

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

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

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

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

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

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?

    ฿7,603 is the cheapest one-way deal found within the past few days, from โอมานแอร์. You may also be able to find cheap deals on Malaysia Airlines and China Southern, with prices starting from ฿10,235 and ฿10,429, respectively.

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

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

    The top 3 most reliable airlines when flying from Thailand to London Heathrow Airport are แอร์แคนาดา (74%), Thai Airways (70%) and EVA Air (68%).

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

    While on average a flight from Thailand to London Heathrow Airport is generally ฿59,469, our data shows the cheapest flight currently is ฿13,177. When looking at the most popular route, (Bangkok Suvarnabhumi - London Heathrow), you can expect to pay ฿20,242 for that flight.

  • 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, December is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of ฿810). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of ฿1,025). 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 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 17,341 searches. Data last updated 18 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest฿19,579Average฿23,049FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest฿21,576Average฿23,468FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest฿22,561Average฿29,102FlexibilityNo cancel feeOn-time67%
Search Air China flights
เอทิฮัดแอร์เวย์Cheapest฿23,345Average฿29,299FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
FinnairCheapest฿23,668Average฿29,605FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Malaysia AirlinesCheapest฿23,908Average฿26,889FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
ลุฟท์ฮันซ่าCheapest฿24,219Average฿28,655FlexibilityNo cancel feeOn-time76%
Search ลุฟท์ฮันซ่า flights
เตอร์กิชแอร์ไลน์Cheapest฿24,423Average฿26,075FlexibilityNo cancel feeOn-time77%
Search เตอร์กิชแอร์ไลน์ flights
คูเวตแอร์เวย์Cheapest฿25,550Average฿26,862FlexibilityNo cancel feeOn-time64%
Search คูเวตแอร์เวย์ flights
Cathay PacificCheapest฿25,723Average฿28,773FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Thailand to Heathrow?

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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.

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