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Cheap flights from Thailand to London Heathrow Airport from £141

BKK — LHR
12 Nov — 19 Nov1
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

Thu 5/1109:10 -
1 stop28h 30m
Wed 11/1120:25 -
1 stop18h 25m
Deal found 12/10£504
Wed 4/1108:40 -
1 stop29h 00m
Wed 11/1106:00 -
3 stops22h 15m
Deal found 12/10£508
Sun 20/1220:40 -
1 stop21h 25m
Fri 1/121:10 -
1 stop31h 00m
Deal found 13/10£528
Sun 8/1109:10 -
2 stops32h 20m
Sun 15/1106:20 -
2 stops32h 30m
Deal found 11/10£531
Thu 17/1202:20 -
1 stop23h 50m
Tue 5/122:00 -
1 stop33h 55m
Deal found 9/10£534
Tue 1/1219:30 -
1 stop29h 55m
Wed 9/1221:05 -
1 stop30h 00m
Deal found 12/10£534
Wed 28/1005:05 -
1 stop19h 25m
Mon 30/1121:10 -
1 stop21h 10m
Deal found 8/10£535
Wed 11/1122:10 -
2 stops27h 00m
Sun 23/512:30 -
1 stop19h 05m
Deal found 11/10£536
Wed 28/1018:10 -
1 stop33h 20m
Sat 31/1007:00 -
2 stops22h 20m
Deal found 11/10£537
Thu 19/1119:30 -
2 stops29h 15m
Mon 23/1121:00 -
2 stops30h 05m
Deal found 8/10£538
Mon 12/1022:45 -
1 stop25h 00m
Mon 5/407:05 -
2 stops25h 50m
Deal found 9/10£540
Tue 15/1205:40 -
1 stop22h 55m
Wed 30/1208:50 -
2 stops23h 40m
Deal found 10/10£540

Find flight deals from Thailand to Heathrow

Round-trip from

£504

One-way from

£139

Popular in

July

Cheapest in

February

Average price

£676

Good round-trip deal

£426 or less

Good one-way deal

£365 or less
Air China
  • Air China
  • 5/11-11/11
  • 2 total stops
  • 46h 55m total
  • Thailand to London
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Etihad Airways
  • Etihad Airways
  • 15/11-31/12
  • 1 total stop
  • 36h 50m total
  • Thailand to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£40 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Thailand to London Heathrow.
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Price to beat on a one-way flight from Thailand to London Heathrow.
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Cheapflights Fare Finder

 
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

KrabiLondon

KBV Krabi - LHR London Heathrow

KBVLHR

Krabi

Wed 23/12

22:55-21:35

2 stops29h 40m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£187

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Fri 4/12

09:10-12:05

1 stop33h 55m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£225

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sun 20/12

20:55-14:30

1 stop24h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£230

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sun 18/10

07:10-17:45

2 stops40h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£250

Khon KaenLondon

KKC Khon Kaen - LHR London Heathrow

KKCLHR

Khon Kaen

Wed 13/1

08:40-20:30

2 stops42h 50m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£274

Khon KaenLondon

KKC Khon Kaen - LHR London Heathrow

KKCLHR

Khon Kaen

Fri 15/1

08:40-19:10

2 stops41h 30m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£283

Phuket CityLondon

HKT Phuket City - LHR London Heathrow

HKTLHR

Phuket City

Sat 28/11

10:55-08:55

1 stop29h 00m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£302

Phuket CityLondon

HKT Phuket City - LHR London Heathrow

HKTLHR

Phuket City

Thu 24/12

13:15-19:50

Nonstop13h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£303

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sun 20/12

17:00-09:20

2 stops23h 20m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£304

Phuket CityLondon

HKT Phuket City - LHR London Heathrow

HKTLHR

Phuket City

Mon 19/10

11:45-19:25

Nonstop13h 40m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£331

Flights are sorted by cheapest return flights first.

Deals found on 11/10

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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, February is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £697). Flying from Thailand to London Heathrow Airport in March is currently the most expensive (average of £870). 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?

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

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 11% of weekly flights between Thailand and London have experienced delays in the past year, with the average delay time being 97 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 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 10% of flights being delayed.

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 79 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.

Reviews of airlines servicing Heathrow

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
1,548 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

Reviews

1 / 20
6.0
Good

Jack,Feb 2026

MNL - TPE

Getting a boarding pass and checking baggage in Manila was painful. Two-plus hour long queue to get to the check-in counter. Once there, staff were great. Boarding was a bit chaotic as travelers seemed to ignore the boarding groups. ... Once in the air, EVA and staff were fantastic and the food was pretty good. ... I'd give a higher rating except for the painful boarding process.
EVA Air
8.5
Very Good
1,548 reviews
EVA Air
8.5
Very Good
1,548 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

Reviews

1 / 20
6.0
Good

Jack,Feb 2026

MNL - TPE

Getting a boarding pass and checking baggage in Manila was painful. Two-plus hour long queue to get to the check-in counter. Once there, staff were great. Boarding was a bit chaotic as travelers seemed to ignore the boarding groups. ... Once in the air, EVA and staff were fantastic and the food was pretty good. ... I'd give a higher rating except for the painful boarding process.
Emirates
8.1
Very Good
3,678 reviews
EVA Air
8.5
Very Good
1,548 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

Reviews

1 / 20
6.0
Good

Jack,Feb 2026

MNL - TPE

Getting a boarding pass and checking baggage in Manila was painful. Two-plus hour long queue to get to the check-in counter. Once there, staff were great. Boarding was a bit chaotic as travelers seemed to ignore the boarding groups. ... Once in the air, EVA and staff were fantastic and the food was pretty good. ... I'd give a higher rating except for the painful boarding process.
Thai Airways
7.9
Good
427 reviews
EVA Air
8.5
Very Good
1,548 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

Reviews

1 / 20
6.0
Good

Jack,Feb 2026

MNL - TPE

Getting a boarding pass and checking baggage in Manila was painful. Two-plus hour long queue to get to the check-in counter. Once there, staff were great. Boarding was a bit chaotic as travelers seemed to ignore the boarding groups. ... Once in the air, EVA and staff were fantastic and the food was pretty good. ... I'd give a higher rating except for the painful boarding process.
Qatar Airways
7.3
Good
3,719 reviews
EVA Air
8.5
Very Good
1,548 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

Reviews

1 / 20
6.0
Good

Jack,Feb 2026

MNL - TPE

Getting a boarding pass and checking baggage in Manila was painful. Two-plus hour long queue to get to the check-in counter. Once there, staff were great. Boarding was a bit chaotic as travelers seemed to ignore the boarding groups. ... Once in the air, EVA and staff were fantastic and the food was pretty good. ... I'd give a higher rating except for the painful boarding process.
Etihad Airways
7.3
Good
1,542 reviews
EVA Air
8.5
Very Good
1,548 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

Reviews

1 / 20
6.0
Good

Jack,Feb 2026

MNL - TPE

Getting a boarding pass and checking baggage in Manila was painful. Two-plus hour long queue to get to the check-in counter. Once there, staff were great. Boarding was a bit chaotic as travelers seemed to ignore the boarding groups. ... Once in the air, EVA and staff were fantastic and the food was pretty good. ... I'd give a higher rating except for the painful boarding process.

Related info for your journey

  • How long is the flight from Thailand to London Heathrow Airport?

    For as low as £726, Etihad Airways can have you in London Heathrow Airport from Thailand in 17h 35m. 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 Etihad Airways, with whom users have recently found tickets for as low as £99. However, be on the lookout for offers from Norse Atlantic UK and Scandinavian Airlines, 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 Air Canada (75%), TAP AIR PORTUGAL (75%) or Thai Airways (70%) 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 £1,144 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 £457.

  • 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 £697). Flying from Thailand to London Heathrow Airport in March is currently the most expensive (average of £870). 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
Hounslow
Milton Keynes
Luton
Slough
Gatwick
Wembley
Hayes
Ilford
Croydon
Colchester
Northampton
Eastbourne
Brentford
Southend-on-Sea
Barnet
Enfield
Southall
Watford
Stratford-upon-Avon
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

Top 8 airlines flying from Thailand to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest£276Average£604FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Oman AirCheapest£291Average£567FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Etihad AirwaysCheapest£405Average£678FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Thai AirwaysCheapest£501Average£929FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Qatar AirwaysCheapest£556Average£709FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest£672Average£745FlexibilityNo cancel feeOn-time75%
Search Emirates flights
FinnairCheapest£689Average£761FlexibilityNo cancel feeOn-time76%
Search Finnair flights
EVA AirCheapest£738Average£859FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

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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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