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Cheap flights from Thailand to London Heathrow Airport from £242

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
16 Jun — 23 Jun1
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 17 May 2026.

Thu 11/603:20
HKT
-
LHR
1 stop15h 25m
Etihad Airways
Sat 27/621:45
LHR
-
HKT
1 stop19h 55m
Etihad Airways
Deal found 14/5£536
Thu 18/615:45
HKT
-
LHR
1 stop21h 15m
Etihad Airways
Mon 6/721:45
LHR
-
HKT
1 stop19h 55m
Etihad Airways
Deal found 14/5£541
Mon 15/602:25
HKT
-
LHR
1 stop18h 40m
Etihad Airways
Tue 30/614:45
LHR
-
HKT
1 stop15h 20m
Etihad Airways
Deal found 14/5£543
Sat 27/602:25
HKT
-
LHR
1 stop18h 40m
Etihad Airways
Sun 5/709:30
LHR
-
HKT
1 stop20h 35m
Etihad Airways
Deal found 14/5£552
Wed 10/603:20
HKT
-
LHR
1 stop15h 25m
Etihad Airways
Thu 18/614:45
LHR
-
HKT
1 stop15h 20m
Etihad Airways
Deal found 13/5£554
Wed 17/602:25
HKT
-
LHR
1 stop16h 20m
Etihad Airways
Sat 4/721:45
LHR
-
HKT
1 stop19h 55m
Etihad Airways
Deal found 14/5£558
Sun 7/619:20
BKK
-
LHR
1 stop30h 10m
Multiple Airlines
Sat 5/921:20
LHR
-
BKK
1 stop21h 20m
Multiple Airlines
Deal found 13/5£572
Thu 4/603:15
BKK
-
LHR
1 stop33h 45m
Etihad Airways
Thu 18/620:50
LHR
-
BKK
1 stop33h 00m
Etihad Airways
Deal found 13/5£573
Sat 6/603:15
BKK
-
LHR
1 stop15h 30m
Multiple Airlines
Mon 7/922:40
LHR
-
BKK
1 stop19h 30m
Multiple Airlines
Deal found 13/5£574
Sun 28/603:15
BKK
-
LHR
1 stop17h 50m
Etihad Airways
Mon 6/721:45
LHR
-
BKK
1 stop20h 05m
Etihad Airways
Deal found 15/5£575
Sun 17/503:15
BKK
-
LHR
1 stop17h 50m
Etihad Airways
Mon 25/514:45
LHR
-
BKK
1 stop27h 05m
Etihad Airways
Deal found 13/5£576
Sun 17/503:15
BKK
-
LHR
1 stop21h 30m
Multiple Airlines
Mon 25/517:05
LHR
-
BKK
1 stop16h 30m
Multiple Airlines
Deal found 17/5£576

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 17 May 2026.

Round-trip from

£536

One-way from

£242

Popular in

January

Cheapest in

November

Average price

£705

Good round-trip deal

£889 or less

Good one-way deal

£487 or less
Etihad Airways
  • Etihad Airways
  • 11/6-27/6
  • 2 total stops
  • 35h 20m total
  • Thailand to London
Search Deals
3/11
  • 3/11
  • 2 total stops
  • 43h 20m total
  • Thailand to London
Search Deals
High demand for flights, 1% potential price rise
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 May 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.
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 17 May 2026.
Use the filters below to find and compare flights from Thailand to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 10/6

14:55-18:40

1 stop33h 45m

London Heathrow

Fri 11/9

22:40-21:50

1 stop17h 10m

£618

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 6/6

10:05-18:40

2 stops38h 35m

London Heathrow

Sun 14/6

21:20-09:15

3 stops29h 55m

£635

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 19/10

02:20-14:45

1 stop18h 25m

London Heathrow

Sun 25/10

10:45-10:05

1 stop16h 20m

£664

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 9/9

03:15-15:05

1 stop17h 50m

London Heathrow

Fri 9/10

14:45-23:50

1 stop27h 05m

£672

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 8/6

11:55-15:20

2 stops33h 25m

London Heathrow

Mon 22/6

10:00-13:45

2 stops21h 45m

£708

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 17/7

19:10-06:30

1 stop17h 20m

London Heathrow

Fri 7/8

08:25-06:50

1 stop16h 25m

£711

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Thu 11/6

14:05-17:45

1 stop33h 40m

London Heathrow

Wed 17/6

20:10-12:50

1 stop34h 40m

£720

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Mon 21/9

23:50-16:10

1 stop22h 20m

London Heathrow

Fri 25/9

20:40-20:45

1 stop18h 05m

£732

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Thu 11/6

09:25-15:20

2 stops35h 55m

London Heathrow

Wed 17/6

09:30-09:00

2 stops17h 30m

£733
Fastest return journey

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 4/7

09:15-17:55

1 stop14h 40m

London Heathrow

Fri 24/7

08:25-06:20

1 stop15h 55m

£734

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Thailand to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Thailand to London Heathrow Airport, you should look to book at least 60 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £173). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of £526). 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 17 May 2026.

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 17 May 2026.

The most flights from TH0 to LHR are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 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 91 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?

Sunday tends to have the lowest number of delays on this route, whereas Thursday 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, Thai Airways have had the lowest number of delays on this route, with just 14% 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 17 May 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
8.5
Very Good
1,449 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!
EVA Air
8.5
Very Good
1,449 reviews
EVA Air
8.5
Very Good
1,449 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!
Emirates
8.1
Very Good
3,571 reviews
EVA Air
8.5
Very Good
1,449 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!
Thai Airways
7.9
Good
401 reviews
EVA Air
8.5
Very Good
1,449 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!
Qatar Airways
7.4
Good
3,723 reviews
EVA Air
8.5
Very Good
1,449 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!
Etihad Airways
7.3
Good
1,439 reviews
EVA Air
8.5
Very Good
1,449 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!

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 £672, China Eastern can have you in London Heathrow Airport from Thailand in 17h 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 Norse Atlantic UK, with whom users have recently found tickets for as low as £129. However, be on the lookout for offers from Scandinavian Airlines and Oman Air, 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 TAP AIR PORTUGAL (100%), Air Canada (87%) or Thai Airways (71%) 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 £1,154 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £436 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £551.

  • 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, February is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £173). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of £526). 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
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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.

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 17 May 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£215Average£525FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Kuwait AirwaysCheapest£270Average£549FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Oman AirCheapest£289Average£573FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Etihad AirwaysCheapest£402Average£667FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
SAUDIACheapest£490Average£558FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Air ChinaCheapest£515Average£553FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£521Average£618FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest£604Average£770FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Gulf AirCheapest£623Average£655FlexibilityNo cancel feeOn-time67%
Search Gulf Air flights
British AirwaysCheapest£636Average£767FlexibilityNo cancel feeOn-time70%
Search British 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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