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Cheap flights from Thailand to London Heathrow Airport from £187

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
8 Feb — 15 Feb1
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 9 January 2026.

Round-trip from

£447

One-way from

£187

Popular in

January

Cheapest in

November

Average price

£766

Good round-trip deal

£732 or less

Good one-way deal

£385 or less
4/3-12/3
  • 4/3-12/3
  • 2 total stops
  • 44h 45m total
  • Thailand to London
Search Deals
China Eastern
  • China Eastern
  • 5/2
  • 1 total stop
  • 32h 55m total
  • Thailand to London
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£3 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 January 2026
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

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 9 January 2026.

Wed 4/322:50HKT - LHR
1 stop27h 30mMultiple Airlines
Thu 12/306:40LHR - HKT
1 stop17h 15mMultiple Airlines
Deal found 8/1£447
Wed 1/408:40HKT - LHR
1 stop15h 40mMultiple Airlines
Wed 8/421:05LHR - HKT
1 stop27h 05mMultiple Airlines
Deal found 7/1£448
Thu 22/111:10BKK - LHR
2 stops37h 25mMultiple Airlines
Sun 25/121:00LHR - BKK
1 stop18h 25mMultiple Airlines
Deal found 7/1£448
Thu 5/319:10BKK - LHR
2 stops29h 25mMultiple Airlines
Mon 23/313:55LHR - BKK
2 stops18h 30mMultiple Airlines
Deal found 8/1£450
Thu 5/319:10BKK - LHR
2 stops29h 25mHainan Airlines
Fri 20/321:00LHR - BKK
2 stops30h 05mHainan Airlines
Deal found 8/1£451
Thu 5/211:10BKK - LHR
2 stops37h 25mMultiple Airlines
Wed 18/206:35LHR - BKK
2 stops31h 30mMultiple Airlines
Deal found 8/1£453
Tue 10/311:10BKK - LHR
1 stop36h 10mMultiple Airlines
Wed 22/421:20LHR - BKK
1 stop21h 20mMultiple Airlines
Deal found 7/1£455
Thu 29/119:10BKK - LHR
2 stops29h 25mMultiple Airlines
Tue 5/521:20LHR - BKK
1 stop17h 35mMultiple Airlines
Deal found 8/1£456
Thu 5/211:10BKK - LHR
2 stops37h 25mMultiple Airlines
Thu 19/221:00LHR - BKK
1 stop18h 25mMultiple Airlines
Deal found 6/1£457
Thu 22/119:10BKK - LHR
1 stop29h 25mMultiple Airlines
Mon 26/110:00LHR - BKK
1 stop20h 40mMultiple Airlines
Deal found 8/1£460
Tue 10/311:10BKK - LHR
1 stop36h 10mHainan Airlines
Wed 29/422:00LHR - BKK
1 stop30h 00mHainan Airlines
Deal found 7/1£461
Thu 21/511:05BKK - LHR
2 stops38h 25mHainan Airlines
Mon 25/522:00LHR - BKK
2 stops30h 00mHainan Airlines
Deal found 8/1£462

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 9 January 2026.
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 4/3

22:50-19:20

1 stop27h 30m

London Heathrow

Thu 12/3

06:40-06:55

1 stop17h 15m

£447

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Wed 1/4

08:40-18:20

1 stop15h 40m

London Heathrow

Wed 8/4

21:05-06:10

1 stop27h 05m

£448

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 22/1

16:25-17:30

2 stops32h 05m

London Heathrow

Thu 29/1

21:00-09:05

2 stops29h 05m

£534

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Fri 6/2

12:35-17:10

1 stop35h 35m

London Heathrow

Sun 8/2

18:50-22:30

1 stop20h 40m

£535

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Wed 1/4

18:55-18:40

2 stops29h 45m

London Heathrow

Wed 8/4

21:20-22:00

1 stop18h 40m

£539

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 8/2

20:05-05:55

1 stop16h 50m

London Heathrow

Sun 15/2

20:05-17:45

1 stop14h 40m

£550

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 23/2

20:05-18:25

1 stop29h 20m

London Heathrow

Sat 7/3

20:05-17:45

1 stop14h 40m

£550

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 28/1

09:00-18:25

1 stop16h 25m

London Heathrow

Fri 27/2

08:25-06:45

1 stop15h 20m

£550

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Wed 4/2

12:35-14:25

1 stop32h 50m

London Heathrow

Wed 11/2

21:30-21:45

1 stop17h 15m

£556

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Thu 7/5

08:40-18:20

1 stop15h 40m

London Heathrow

Sun 14/6

21:20-22:45

1 stop19h 25m

£565

Flights are sorted by cheapest return flights first.

Deals found on 8/1

Showing 1-10 of 60 results
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2
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6

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 £303). Flying from Thailand to London Heathrow Airport in June is currently the most expensive (average of £562). 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 9 January 2026.

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 21% versus a flight at midday.

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 3 January 2026.

Travellers seeking maximum savings on their Thailand to London Heathrow Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday afternoons 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 9 January 2026.

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 14% 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?

Friday 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 9% 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 9 January 2026.
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
1,314 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

SFO - TPE

It's alright. I wish I was assigned a seat on the isle side. I was not able to pick a seat during booking. So, I was seated in between two guys. For a 14 hours flight, it was barely bearable.
EVA Air
8.4
Very Good
1,314 reviews
EVA Air
8.4
Very Good
1,314 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

SFO - TPE

It's alright. I wish I was assigned a seat on the isle side. I was not able to pick a seat during booking. So, I was seated in between two guys. For a 14 hours flight, it was barely bearable.
Emirates
8.1
Very Good
3,462 reviews
EVA Air
8.4
Very Good
1,314 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

SFO - TPE

It's alright. I wish I was assigned a seat on the isle side. I was not able to pick a seat during booking. So, I was seated in between two guys. For a 14 hours flight, it was barely bearable.
Thai Airways
7.8
Good
376 reviews
EVA Air
8.4
Very Good
1,314 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

SFO - TPE

It's alright. I wish I was assigned a seat on the isle side. I was not able to pick a seat during booking. So, I was seated in between two guys. For a 14 hours flight, it was barely bearable.
Qatar Airways
7.4
Good
3,702 reviews
EVA Air
8.4
Very Good
1,314 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

SFO - TPE

It's alright. I wish I was assigned a seat on the isle side. I was not able to pick a seat during booking. So, I was seated in between two guys. For a 14 hours flight, it was barely bearable.
Etihad Airways
7.3
Good
1,361 reviews
EVA Air
8.4
Very Good
1,314 reviews
Check prices

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

SFO - TPE

It's alright. I wish I was assigned a seat on the isle side. I was not able to pick a seat during booking. So, I was seated in between two guys. For a 14 hours flight, it was barely bearable.

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 £550, China Eastern can have you in London Heathrow Airport from Thailand in 16h 50m. 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 Scandinavian Airlines, with whom users have recently found tickets for as low as £133. However, be on the lookout for offers from Oman Air and Etihad Airways, 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 Chiang Mai - 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 (95%), Thai Airways (93%) or EVA Air (93%) 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 £894 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £338 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £440.

  • 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 £303). Flying from Thailand to London Heathrow Airport in June is currently the most expensive (average of £562). 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
Luton
Croydon
Northampton
Slough
Hounslow
Gatwick
Ilford
Wembley
Brentford
Hayes
Colchester
Watford
Crawley
Swindon
Kingston upon Thames
Bedford
Chelmsford
Eastbourne
Romford

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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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Taiwan Taoyuan Intl to Gatwick flights
Incheon Intl to Gatwick flights
Incheon Intl to Stansted flights
Pu Dong to Heathrow flights
Manila to Stansted flights
Narita to Stansted flights
Don Mueang Intl to Heathrow flights
Manila to Gatwick flights
Taiwan Taoyuan Intl to Stansted flights
Lahore to Heathrow flights
Hyderabad to Heathrow flights
Chennai to Heathrow flights
Incheon Intl to London City flights
Singapore to Luton flights
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Islamabad to Heathrow flights

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 9 January 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£237Average£520FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Oman AirCheapest£286Average£642FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Air IndiaCheapest£363Average£656FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Turkish AirlinesCheapest£380Average£584FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Austrian AirlinesCheapest£452Average£671FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
SAUDIACheapest£486Average£553FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
China EasternCheapest£504Average£595FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Kuwait AirwaysCheapest£511Average£581FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Air ChinaCheapest£511Average£549FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapest£541Average£667FlexibilityNo 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 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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