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Cheap flights from Thailand to London Heathrow Airport from £135

BKK — LHR
25 Nov — 2 Dec1
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

Wed 25/1109:10 -
1 stop16h 00m
Sat 5/1221:10 -
2 stops27h 40m
Deal found 23/10£515
Sat 21/1114:45 -
1 stop27h 20m
Sat 28/1106:30 -
2 stops21h 15m
Deal found 21/10£519
Thu 5/1109:10 -
1 stop16h 00m
Sun 29/1107:50 -
2 stops47h 30m
Deal found 23/10£519
Mon 30/1120:40 -
1 stop21h 25m
Tue 1/1220:30 -
1 stop16h 10m
Deal found 24/10£521
Tue 17/1122:10 -
2 stops27h 00m
Thu 26/1122:30 -
1 stop19h 50m
Deal found 22/10£522
Tue 3/1120:50 -
1 stop28h 20m
Wed 18/1112:30 -
1 stop21h 05m
Deal found 24/10£522
Thu 5/1106:50 -
1 stop20h 40m
Wed 18/1116:50 -
1 stop16h 40m
Deal found 24/10£523
Tue 27/1017:50 -
2 stops25h 15m
Fri 30/1021:00 -
2 stops30h 05m
Deal found 22/10£524
Wed 2/1219:25 -
1 stop32h 05m
Fri 5/208:45 -
1 stop29h 30m
Deal found 21/10£525
Sun 27/1206:50 -
1 stop19h 30m
Wed 6/122:00 -
1 stop16h 15m
Deal found 23/10£525
Tue 24/1109:10 -
1 stop16h 00m
Sat 5/1221:10 -
2 stops30h 45m
Deal found 26/10£525
Wed 2/1206:50 -
1 stop20h 40m
Wed 3/220:30 -
1 stop16h 10m
Deal found 22/10£526

Find flight deals from Thailand to Heathrow

Round-trip from

£489

One-way from

£135

Popular in

July

Cheapest in

February

Average price

£682

Good round-trip deal

£494 or less

Good one-way deal

£360 or less
China Eastern
  • China Eastern
  • 25/11-5/12
  • 2 total stops
  • 34h 50m total
  • Thailand to London
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Etihad Airways
  • Etihad Airways
  • 4/11-31/12
  • 1 total stop
  • 16h 00m total
  • Thailand to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£38 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
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.
Search Deals
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

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 24/11

09:10-12:05

1 stop33h 55m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£139

KrabiLondon

KBV Krabi - LHR London Heathrow

KBVLHR

Krabi

Wed 18/11

08:40-14:30

1 stop36h 50m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£140

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Thu 5/11

12:35-21:20

2 stops39h 45m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£205

KrabiLondon

KBV Krabi - LHR London Heathrow

KBVLHR

Krabi

Wed 9/12

22:55-17:40

1 stop25h 45m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£208

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sat 12/12

22:35-09:35

2 stops42h 00m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£218

KrabiLondon

KBV Krabi - LHR London Heathrow

KBVLHR

Krabi

Tue 23/2

11:50-18:25

2 stops37h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£220

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sat 12/12

09:10-12:05

1 stop33h 55m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£227

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 8/3

20:55-14:30

1 stop24h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£232

Phuket CityLondon

HKT Phuket City - LHR London Heathrow

HKTLHR

Phuket City

Mon 14/12

22:15-14:35

2 stops23h 20m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£241

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Wed 4/11

08:50-18:10

2 stops40h 20m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

£258

Flights are sorted by cheapest return flights first.

Deals found on 26/10

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 £690). Flying from Thailand to London Heathrow Airport in March is currently the most expensive (average of £893). 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.

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 78 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, andOman Air 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
1,551 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.7

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
EVA Air
8.5
Very Good
1,551 reviews
EVA Air
8.5
Very Good
1,551 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.7

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
Emirates
8.1
Very Good
3,689 reviews
EVA Air
8.5
Very Good
1,551 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.7

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
Oman Air
8.0
Very Good
144 reviews
EVA Air
8.5
Very Good
1,551 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.7

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
Thai Airways
7.9
Good
433 reviews
EVA Air
8.5
Very Good
1,551 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.7

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
Etihad Airways
7.3
Good
1,548 reviews
EVA Air
8.5
Very Good
1,551 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.7

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!

Related info for your journey

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

    For as low as £715, Shenzhen Airlines can have you in London Heathrow Airport from Thailand in 22h 10m. Thailand and London Heathrow Airport are separated by a distance of 6149 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 £98. 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 (74%), TAP AIR PORTUGAL (74%) or Thai Airways (64%) 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 £1,085 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 £468.

  • 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 £690). Flying from Thailand to London Heathrow Airport in March is currently the most expensive (average of £893). 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
Luton
Milton Keynes
Slough
Wembley
Gatwick
Ilford
Hayes
Croydon
Northampton
Barnet
Eastbourne
Brentford
Southend-on-Sea
Southall
Enfield
Watford
Kingston upon Thames
Dagenham
Dover

Browse thousands of different options on Cheapflights for your next trip

Top 8 airlines flying from Thailand to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest£273Average£597FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Oman AirCheapest£288Average£560FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Etihad AirwaysCheapest£400Average£670FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Thai AirwaysCheapest£515Average£910FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Qatar AirwaysCheapest£549Average£701FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest£665Average£738FlexibilityNo cancel feeOn-time75%
Search Emirates flights
FinnairCheapest£681Average£752FlexibilityNo cancel feeOn-time76%
Search Finnair flights
EVA AirCheapest£730Average£854FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

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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