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Cheap flights from Thailand to London Heathrow Airport from £235

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
29 Jul — 5 Aug1
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 29 June 2026.

Mon 26/1017:20
CNX
-
LHR
2 stops35h 00m
Multiple Airlines
Tue 3/1121:00
LHR
-
CNX
1 stop34h 20m
Multiple Airlines
Deal found 29/6£581
Sat 8/815:20
HKT
-
LHR
1 stop33h 25m
Etihad Airways
Fri 21/814:45
LHR
-
HKT
1 stop27h 10m
Etihad Airways
Deal found 26/6£592
Tue 11/815:20
HKT
-
LHR
1 stop29h 45m
Multiple Airlines
Tue 18/815:25
LHR
-
HKT
2 stops22h 20m
Multiple Airlines
Deal found 27/6£593
Mon 2/1123:10
HKT
-
LHR
2 stops24h 15m
Multiple Airlines
Mon 16/1120:25
LHR
-
HKT
1 stop17h 55m
Multiple Airlines
Deal found 25/6£598
Mon 7/914:35
CNX
-
LHR
2 stops34h 10m
Multiple Airlines
Wed 16/922:40
LHR
-
CNX
1 stop17h 10m
Multiple Airlines
Deal found 27/6£607
Tue 18/820:20
HKT
-
LHR
1 stop28h 50m
Multiple Airlines
Tue 25/815:50
LHR
-
HKT
2 stops20h 30m
Multiple Airlines
Deal found 27/6£611
Sat 8/803:20
HKT
-
LHR
1 stop21h 25m
Multiple Airlines
Sat 22/814:45
LHR
-
HKT
2 stops21h 35m
Multiple Airlines
Deal found 28/6£613
Mon 17/809:40
HKT
-
LHR
1 stop15h 30m
Multiple Airlines
Tue 25/815:50
LHR
-
HKT
2 stops20h 30m
Multiple Airlines
Deal found 28/6£613
Thu 9/703:15
BKK
-
LHR
1 stop21h 30m
Multiple Airlines
Wed 2/1214:15
LHR
-
BKK
2 stops20h 45m
Multiple Airlines
Deal found 28/6£614
Wed 19/821:00
HKT
-
LHR
1 stop28h 10m
Oman Air
Sun 23/820:50
LHR
-
HKT
1 stop30h 25m
Oman Air
Deal found 27/6£615
Fri 11/919:10
BKK
-
LHR
1 stop17h 20m
Multiple Airlines
Sat 19/921:20
LHR
-
BKK
1 stop21h 20m
Multiple Airlines
Deal found 28/6£615
Mon 17/803:15
BKK
-
LHR
1 stop21h 25m
Multiple Airlines
Sun 20/920:25
LHR
-
BKK
1 stop21h 45m
Multiple Airlines
Deal found 26/6£616

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 29 June 2026.

Round-trip from

£592

One-way from

£235

Popular in

July

Cheapest in

November

Average price

£704

Good round-trip deal

£776 or less

Good one-way deal

£424 or less
Etihad Airways
  • Etihad Airways
  • 8/8-21/8
  • 2 total stops
  • 60h 35m total
  • Thailand to London
Search Deals
9/11
  • 9/11
  • 2 total stops
  • 25h 10m total
  • Thailand to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£35 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 29 June 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

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Thu 8/10

20:50-06:30

1 stop15h 40m

London Heathrow

Thu 22/10

20:50-19:55

1 stop17h 05m

£615

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Thu 13/8

10:35-06:30

1 stop25h 55m

London Heathrow

Thu 20/8

20:50-08:30

1 stop29h 40m

£625

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 15/9

15:25-07:30

1 stop22h 05m

London Heathrow

Thu 10/12

22:05-23:30

1 stop18h 25m

£626

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 19/7

15:25-07:30

1 stop22h 05m

London Heathrow

Mon 8/2

10:00-13:40

1 stop20h 40m

£626

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 17/11

19:10-18:25

1 stop30h 15m

London Heathrow

Sat 21/11

20:05-17:15

1 stop14h 10m

£635

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 3/11

08:50-14:30

1 stop36h 40m

London Heathrow

Fri 6/11

20:55-06:05

1 stop26h 10m

£645

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 22/7

02:10-18:40

2 stops22h 30m

London Heathrow

Thu 30/7

21:20-21:55

1 stop18h 35m

£656

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 2/8

03:00-18:40

2 stops21h 40m

London Heathrow

Wed 26/8

21:20-01:10

2 stops21h 50m

£662

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 17/9

09:00-19:10

1 stop16h 10m

London Heathrow

Sun 13/12

20:05-19:55

1 stop16h 50m

£662

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Mon 9/11

02:40-18:10

1 stop22h 30m

London Heathrow

Thu 12/11

13:55-12:00

1 stop15h 05m

£709

Flights are sorted by cheapest return flights first.

Deals found on 25/6

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

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 £174). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of £520). 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 29 June 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 29 June 2026.

The most flights from TH0 to LHR are scheduled on a Monday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).

How often are flights from Thailand to London delayed?

About 12% 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 12% 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 84 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

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 29 June 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
1,482 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.0

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
1,482 reviews
EVA Air
8.5
Very Good
1,482 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.0

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
3,602 reviews
EVA Air
8.5
Very Good
1,482 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.0

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
407 reviews
EVA Air
8.5
Very Good
1,482 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.0

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
3,738 reviews
EVA Air
8.5
Very Good
1,482 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.0

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
1,469 reviews
EVA Air
8.5
Very Good
1,482 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.0

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

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 £615, Oman Air can have you in London Heathrow Airport from Thailand in 15h 40m. 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 Norse Atlantic UK, with whom users have recently found tickets for as low as £130. 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 Air Canada (85%), TAP AIR PORTUGAL (84%) 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 £1,299 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £349 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £543.

  • 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 £174). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of £520). 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
Wembley
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Northampton
Watford
Kingston upon Thames
Swindon
Eastbourne
Poole
Southall
Aylesbury
Romford

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 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£206Average£530FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Oman AirCheapest£291Average£577FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Etihad AirwaysCheapest£406Average£677FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
SAUDIACheapest£483Average£563FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Air ChinaCheapest£520Average£559FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£526Average£624FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest£555Average£777FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Gulf AirCheapest£629Average£660FlexibilityNo cancel feeOn-time67%
Search Gulf Air flights
EmiratesCheapest£660Average£711FlexibilityNo cancel feeOn-time75%
Search Emirates flights
British AirwaysCheapest£708Average£787FlexibilityNo 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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