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Cheap flights from Thailand to London Heathrow Airport from £171

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 23/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
10 Jan — 17 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 11 December 2025.

Sat 27/1216:25CNX - LHR
2 stops32h 05mChina Eastern
Sun 11/121:00LHR - CNX
2 stops29h 05mChina Eastern
Deal found 10/12£456
Sat 27/1208:50CNX - LHR
1 stop36h 40mMultiple Airlines
Sun 11/121:00LHR - CNX
1 stop34h 20mMultiple Airlines
Deal found 10/12£476
Tue 16/1200:05HKT - LHR
2 stops24h 25mMultiple Airlines
Tue 6/122:10LHR - HKT
1 stop31h 35mMultiple Airlines
Deal found 8/12£494
Sat 27/1211:10BKK - LHR
1 stop37h 45mMultiple Airlines
Fri 9/120:25LHR - BKK
1 stop20h 45mMultiple Airlines
Deal found 10/12£497
Tue 16/1200:05HKT - LHR
2 stops24h 25mMultiple Airlines
Sat 3/121:35LHR - HKT
1 stop32h 15mMultiple Airlines
Deal found 8/12£501
Tue 23/1212:45BKK - LHR
1 stop27h 35mMultiple Airlines
Fri 9/120:25LHR - BKK
1 stop18h 05mMultiple Airlines
Deal found 10/12£502
Thu 18/1212:45BKK - LHR
1 stop15h 55mMultiple Airlines
Fri 9/120:25LHR - BKK
1 stop18h 05mMultiple Airlines
Deal found 10/12£503
Tue 23/1212:45BKK - LHR
1 stop27h 35mMultiple Airlines
Thu 8/120:25LHR - BKK
1 stop18h 05mMultiple Airlines
Deal found 10/12£503
Thu 18/1212:45BKK - LHR
1 stop15h 55mMultiple Airlines
Thu 8/120:25LHR - BKK
1 stop18h 05mMultiple Airlines
Deal found 10/12£504
Wed 17/1209:25BKK - LHR
1 stop15h 45mMultiple Airlines
Wed 31/1219:45LHR - BKK
1 stop31h 20mMultiple Airlines
Deal found 9/12£505
Fri 12/1202:10BKK - LHR
2 stops42h 50mChina Southern
Mon 19/119:35LHR - BKK
1 stop16h 20mChina Southern
Deal found 10/12£506
Sat 20/1212:45BKK - LHR
1 stop27h 35mMultiple Airlines
Thu 8/120:25LHR - BKK
1 stop18h 05mMultiple Airlines
Deal found 10/12£506

Find 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 December 2025.

Round-trip from

£456

One-way from

£171

Popular in

January

Cheapest in

November

Average price

£660

Good round-trip deal

£740 or less

Good one-way deal

£336 or less
China Eastern
  • China Eastern
  • 27/12-11/1
  • 4 total stops
  • 61h 10m total
  • Thailand to London
Search Deals
Scandinavian Airlines
  • Scandinavian Airlines
  • 23/12
  • 1 total stop
  • 27h 35m total
  • Thailand to London
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£12 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 December 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.
Search Deals

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 December 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

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 27/12

16:25-17:30

2 stops32h 05m

London Heathrow

Sun 11/1

21:00-09:05

2 stops29h 05m

£456

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 24/1

08:50-18:10

1 stop16h 20m

London Heathrow

Sat 31/1

21:00-14:20

1 stop34h 20m

£485

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 23/1

16:25-17:30

2 stops32h 05m

London Heathrow

Fri 30/1

21:00-14:20

1 stop34h 20m

£513

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Fri 23/1

14:00-19:40

1 stop36h 40m

London Heathrow

Fri 30/1

21:00-22:45

1 stop18h 45m

£536

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 29/12

23:05-15:55

1 stop23h 50m

London Heathrow

Mon 12/1

21:00-14:20

1 stop34h 20m

£544

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Tue 13/1

22:50-19:20

1 stop27h 30m

London Heathrow

Thu 29/1

07:40-21:05

2 stops30h 25m

£552

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Sat 24/1

09:10-06:35

1 stop28h 25m

London Heathrow

Sat 31/1

21:00-14:35

1 stop34h 35m

£558

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 23/1

23:05-15:55

1 stop23h 50m

London Heathrow

Fri 30/1

21:00-14:20

1 stop34h 20m

£586

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 28/3

14:45-06:30

2 stops22h 45m

London Heathrow

Sat 11/4

13:15-19:20

2 stops24h 05m

£604

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Sat 24/1

22:20-19:20

1 stop28h 00m

London Heathrow

Sat 31/1

21:30-10:00

1 stop29h 30m

£604

Flights are sorted by cheapest return flights first.

Deals found on 9/12

Showing 1-10 of 60 results
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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 £306). Flying from Thailand to London Heathrow Airport in January is currently the most expensive (average of £606). 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 December 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 morning.

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 6 December 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. Thursday 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 11 December 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 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 11 December 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
8.5
Very Good
1,296 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.5
Very Good
1,296 reviews
EVA Air
8.5
Very Good
1,296 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Emirates
8.1
Very Good
3,434 reviews
EVA Air
8.5
Very Good
1,296 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Thai Airways
7.8
Good
366 reviews
EVA Air
8.5
Very Good
1,296 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Qatar Airways
7.4
Good
3,677 reviews
EVA Air
8.5
Very Good
1,296 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Etihad Airways
7.4
Good
1,331 reviews
EVA Air
8.5
Very Good
1,296 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

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 £604, China Eastern can have you in London Heathrow Airport from Thailand in 22h 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 Oman Air, with whom users have recently found tickets for as low as £156. However, be on the lookout for offers from Scandinavian Airlines 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 (86%) or EVA Air (81%) 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 £861 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £330 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £438.

  • 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 £306). Flying from Thailand to London Heathrow Airport in January is currently the most expensive (average of £606). 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
Northampton
Hounslow
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Watford
Hayes
Crawley
Winchester
Swindon
Deal
Bedford
Romford
Chichester

Browse thousands of different options on Cheapflights for your next trip

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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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Mumbai to Gatwick flights
Lahore to Heathrow flights
Manila to Stansted flights
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Singapore to Stansted flights
Hyderabad to Heathrow flights
Manila to Gatwick flights
Incheon Intl to London City flights
Islamabad to Heathrow flights
Manila to London City flights
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Hongqiao Intl to Gatwick flights
Narita to London City flights
Islamabad to Stansted 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 11 December 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£239Average£522FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Oman AirCheapest£289Average£648FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Air IndiaCheapest£366Average£656FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Austrian AirlinesCheapest£456Average£677FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
SAUDIACheapest£490Average£558FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
China EasternCheapest£509Average£600FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Kuwait AirwaysCheapest£515Average£588FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Air ChinaCheapest£515Average£553FlexibilityNo cancel feeOn-time67%
Search Air China flights
Turkish AirlinesCheapest£560Average£589FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Malaysia AirlinesCheapest£563Average£586FlexibilityNo 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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