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Cheap flights from Thailand to London Heathrow Airport from ฿11,554

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
2 Jun — 9 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 3 May 2026.

Fri 29/520:15
BKK
-
LHR
1 stop16h 40m
Multiple Airlines
Sat 6/622:05
LHR
-
BKK
1 stop38h 10m
Multiple Airlines
Deal found 28/4฿23,238
Thu 11/619:20
BKK
-
LHR
2 stops30h 10m
ไห่หนานแอร์ไลน์
Wed 24/622:00
LHR
-
BKK
1 stop30h 00m
ไห่หนานแอร์ไลน์
Deal found 30/4฿23,303
Tue 5/520:15
BKK
-
LHR
1 stop16h 40m
Multiple Airlines
Tue 9/622:10
LHR
-
BKK
1 stop19h 55m
Multiple Airlines
Deal found 1/5฿23,335
Sat 23/503:20
HKT
-
LHR
1 stop17h 45m
เอทิฮัดแอร์เวย์
Sun 24/521:45
LHR
-
HKT
1 stop20h 10m
เอทิฮัดแอร์เวย์
Deal found 29/4฿23,368
Sun 24/520:15
BKK
-
LHR
1 stop25h 05m
Multiple Airlines
Fri 19/610:00
LHR
-
BKK
1 stop21h 45m
Multiple Airlines
Deal found 29/4฿23,400
Sun 3/520:15
BKK
-
LHR
1 stop16h 40m
Multiple Airlines
Tue 5/522:10
LHR
-
BKK
1 stop19h 55m
Multiple Airlines
Deal found 30/4฿23,465
Wed 27/503:20
HKT
-
LHR
1 stop17h 45m
เอทิฮัดแอร์เวย์
Sat 13/614:45
LHR
-
HKT
1 stop27h 10m
เอทิฮัดแอร์เวย์
Deal found 29/4฿23,497
Thu 28/503:20
HKT
-
LHR
1 stop21h 25m
เอทิฮัดแอร์เวย์
Fri 5/620:45
LHR
-
HKT
1 stop21h 10m
เอทิฮัดแอร์เวย์
Deal found 29/4฿23,626
Fri 12/620:15
BKK
-
LHR
1 stop25h 05m
Multiple Airlines
Fri 19/616:15
LHR
-
BKK
1 stop15h 30m
Multiple Airlines
Deal found 28/4฿23,659
Sun 7/619:20
BKK
-
LHR
2 stops30h 10m
Multiple Airlines
Tue 23/614:45
LHR
-
BKK
1 stop15h 05m
Multiple Airlines
Deal found 1/5฿23,691
Wed 27/503:20
HKT
-
LHR
1 stop15h 25m
เอทิฮัดแอร์เวย์
Thu 4/621:45
LHR
-
HKT
1 stop20h 10m
เอทิฮัดแอร์เวย์
Deal found 30/4฿23,724
Sun 7/620:15
BKK
-
LHR
1 stop16h 40m
Multiple Airlines
Fri 12/616:15
LHR
-
BKK
1 stop15h 30m
Multiple Airlines
Deal found 29/4฿23,724

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 3 May 2026.

Round-trip from

฿23,303

One-way from

฿11,554

Popular in

January

Cheapest in

November

Average price

฿30,067

Good round-trip deal

฿44,475 or less

Good one-way deal

฿21,606 or less
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 11/6-24/6
  • 3 total stops
  • 60h 10m total
  • Thailand to London
Search Deals
18/6
  • 18/6
  • 2 total stops
  • 23h 25m total
  • Thailand to London
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 0% potential price decrease (฿8,813 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 17,341 searches. Data last updated 3 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

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Wed 27/5

03:20-12:45

1 stop15h 25m

London Heathrow

Thu 4/6

21:45-23:55

1 stop20h 10m

฿23,724

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 16/6

02:20-14:45

1 stop18h 25m

London Heathrow

Sun 16/8

22:00-00:50

1 stop20h 50m

฿25,892

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 11/6

20:15-15:20

1 stop25h 05m

London Heathrow

Mon 15/6

22:05-09:45

1 stop29h 40m

฿27,219

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 17/7

20:00-13:15

2 stops23h 15m

London Heathrow

Sun 13/9

20:25-21:50

1 stop19h 25m

฿28,902

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 9/6

02:20-14:45

1 stop18h 25m

London Heathrow

Wed 1/7

11:45-10:20

1 stop16h 35m

฿29,776

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 8/6

09:00-19:10

1 stop16h 10m

London Heathrow

Wed 1/7

20:50-06:55

1 stop28h 05m

฿30,261

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Thu 28/5

14:45-06:55

2 stops22h 10m

London Heathrow

Thu 4/6

14:45-23:55

1 stop27h 10m

฿30,294
Fastest return journey

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 30/6

09:00-19:10

1 stop16h 10m

London Heathrow

Fri 7/8

08:25-06:50

1 stop16h 25m

฿30,326

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 15/6

11:55-19:10

2 stops37h 15m

London Heathrow

Mon 22/6

08:25-11:15

2 stops20h 50m

฿30,391

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Sat 16/5

21:00-08:00

1 stop17h 00m

London Heathrow

Wed 27/5

08:25-14:15

1 stop23h 50m

฿30,488

Flights are sorted by cheapest return flights first.

Deals found on 2/5

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 ฿7,444). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of ฿23,173). 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 3 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Thailand to London Heathrow Airport as you normally would.

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 3 May 2026.

The most flights from TH0 to LHR are scheduled on a Friday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 93 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?

Wednesday 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, EVA Air have had the lowest number of delays on this route, with just 13% 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 3 May 2026.
Get a feel of what it's like to fly with EVA Air,Emirates, andThai Airways from Thailand to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,442 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
EVA Air
8.5
Very Good
1,442 reviews
EVA Air
8.5
Very Good
1,442 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
Emirates
8.1
Very Good
3,568 reviews
EVA Air
8.5
Very Good
1,442 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
Thai Airways
7.9
Good
401 reviews
EVA Air
8.5
Very Good
1,442 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
Qatar Airways
7.4
Good
3,723 reviews
EVA Air
8.5
Very Good
1,442 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
เอทิฮัดแอร์เวย์
7.3
Good
1,433 reviews
EVA Air
8.5
Very Good
1,442 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

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?

    There are many flights that can get you from Thailand to London Heathrow Airport in 15h 25m. Fly via เอทิฮัดแอร์เวย์, คูเวตแอร์เวย์, or กัลฟ์แอร์ to get the fastest option. The distance between Thailand and London Heathrow Airport is about 9896 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Thailand to London Heathrow Airport one-way?

    ฿6,286 is the cheapest one-way deal found within the past few days, from สแกนดอเนเวียนแอร์ไลน์. You may also be able to find cheap deals on เอทิฮัดแอร์เวย์ and ไห่หนานแอร์ไลน์, with prices starting from ฿6,683 and ฿7,291, respectively.

  • What are the most popular routes from Thailand to London Heathrow Airport?

    While some choose either Bangkok Don Mueang Intl - London Heathrow or Ko Samui - London Heathrow, Bangkok Suvarnabhumi - London Heathrow is the most popular route from Thailand to London Heathrow Airport.

  • What are the most reliable airlines from Thailand to London Heathrow Airport?

    The top 3 most reliable airlines when flying from Thailand to London Heathrow Airport are แอร์แคนาดา (84%), Thai Airways (71%) and EVA Air (65%).

  • What are the cheapest flights from Thailand to London Heathrow Airport?

    While on average a flight from Thailand to London Heathrow Airport is generally ฿64,105, our data shows the cheapest flight currently is ฿20,848. When looking at the most popular route, (Bangkok Suvarnabhumi - London Heathrow), you can expect to pay ฿22,008 for that flight.

  • 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 ฿7,444). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of ฿23,173). 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
Brentford

Browse thousands of different options on Cheapflights for your next trip

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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 17,341 searches. Data last updated 3 May 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest฿9,279Average฿23,162FlexibilityNo cancel feeOn-time69%
Search China Southern flights
คูเวตแอร์เวย์Cheapest฿10,884Average฿26,672FlexibilityNo cancel feeOn-time64%
Search คูเวตแอร์เวย์ flights
เอทิฮัดแอร์เวย์Cheapest฿13,032Average฿30,493FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
โอมานแอร์Cheapest฿13,322Average฿24,685FlexibilityNo cancel feeOn-time76%
Search โอมานแอร์ flights
FinnairCheapest฿18,390Average฿27,731FlexibilityNo cancel feeOn-time76%
Search Finnair flights
China EasternCheapest฿23,647Average฿26,693FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest฿26,176Average฿31,469FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
บริติชแอร์เวย์Cheapest฿27,305Average฿30,626FlexibilityNo cancel feeOn-time70%
Search บริติชแอร์เวย์ flights
EmiratesCheapest฿27,843Average฿31,945FlexibilityNo cancel feeOn-time75%
Search Emirates flights
ออสเตรียนแอร์ไลน์Cheapest฿28,045Average฿32,169FlexibilityNo cancel feeOn-time78%
Search ออสเตรียนแอร์ไลน์ 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 makes it easy to find Thailand to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Thailand to Heathrow flexibly with Cheapflights today.

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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