Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Thailand to London Heathrow Airport from ฿10,667

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
21 Jun — 28 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 22 May 2026.

Wed 8/720:15
BKK
-
LHR
1 stop25h 05m
Multiple Airlines
Wed 9/922:40
LHR
-
BKK
1 stop19h 30m
Multiple Airlines
Deal found 18/5฿24,954
Thu 18/612:20
HKT
-
LHR
1 stop35h 50m
Multiple Airlines
Tue 7/721:45
LHR
-
HKT
1 stop32h 20m
Multiple Airlines
Deal found 20/5฿24,986
Sun 17/503:15
BKK
-
LHR
1 stop17h 50m
Multiple Airlines
Fri 22/517:05
LHR
-
BKK
1 stop16h 30m
Multiple Airlines
Deal found 17/5฿25,019
Mon 8/620:15
BKK
-
LHR
1 stop25h 05m
Multiple Airlines
Fri 20/1113:55
LHR
-
BKK
1 stop14h 50m
Multiple Airlines
Deal found 18/5฿25,052
Mon 15/620:15
BKK
-
LHR
1 stop16h 40m
กัลฟ์แอร์
Mon 22/610:00
LHR
-
BKK
1 stop17h 45m
กัลฟ์แอร์
Deal found 18/5฿25,084
Fri 12/620:15
BKK
-
LHR
1 stop25h 05m
Multiple Airlines
Fri 19/614:45
LHR
-
BKK
1 stop15h 05m
Multiple Airlines
Deal found 17/5฿25,117
Mon 19/1002:20
BKK
-
LHR
1 stop18h 25m
คูเวตแอร์เวย์
Wed 28/1010:45
LHR
-
BKK
1 stop16h 20m
คูเวตแอร์เวย์
Deal found 16/5฿25,149
Sun 7/611:05
BKK
-
LHR
2 stops38h 25m
Multiple Airlines
Tue 9/621:45
LHR
-
BKK
1 stop20h 05m
Multiple Airlines
Deal found 17/5฿25,247
Tue 8/903:15
BKK
-
LHR
1 stop17h 50m
Multiple Airlines
Tue 22/922:40
LHR
-
BKK
1 stop19h 30m
Multiple Airlines
Deal found 16/5฿25,280
Wed 3/620:15
BKK
-
LHR
1 stop25h 05m
Multiple Airlines
Sun 7/621:45
LHR
-
BKK
1 stop20h 05m
Multiple Airlines
Deal found 20/5฿25,313
Tue 8/903:15
BKK
-
LHR
1 stop17h 50m
Multiple Airlines
Mon 21/922:40
LHR
-
BKK
1 stop19h 30m
Multiple Airlines
Deal found 17/5฿25,345
Thu 18/620:15
BKK
-
LHR
1 stop25h 05m
Multiple Airlines
Mon 22/614:45
LHR
-
BKK
1 stop15h 05m
Multiple Airlines
Deal found 19/5฿25,378

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 22 May 2026.

Round-trip from

฿24,954

One-way from

฿10,667

Popular in

January

Cheapest in

November

Average price

฿30,630

Good round-trip deal

฿43,963 or less

Good one-way deal

฿21,012 or less
Air China
  • Air China
  • 8/7-9/9
  • 2 total stops
  • 44h 35m total
  • Thailand to London
Search Deals
IndiGo
  • IndiGo
  • 10/7
  • 1 total stop
  • 33h 40m 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 (฿9,420 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 22 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

Thu 4/6

11:55-15:20

2 stops33h 25m

London Heathrow

Thu 11/6

21:20-09:15

3 stops29h 55m

฿27,107
Fastest return journey

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Sun 7/6

21:00-06:25

1 stop15h 25m

London Heathrow

Thu 11/6

15:05-14:10

1 stop17h 05m

฿29,129

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 14/6

20:50-18:40

2 stops27h 50m

London Heathrow

Wed 24/6

21:20-01:55

1 stop22h 35m

฿30,858

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 8/6

11:55-15:20

2 stops33h 25m

London Heathrow

Sun 21/6

10:00-13:45

2 stops21h 45m

฿31,184

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Wed 7/10

12:40-07:05

1 stop24h 25m

London Heathrow

Wed 14/10

16:50-20:20

1 stop21h 30m

฿31,412

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 28/6

20:00-08:00

1 stop18h 00m

London Heathrow

Tue 28/7

15:05-12:55

1 stop15h 50m

฿31,673

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 22/9

23:50-14:25

1 stop20h 35m

London Heathrow

Mon 28/9

19:50-20:45

1 stop18h 55m

฿31,739

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Thu 8/10

23:50-16:10

1 stop22h 20m

London Heathrow

Wed 28/10

22:00-20:15

1 stop15h 15m

฿31,739

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 15/9

23:50-14:25

1 stop20h 35m

London Heathrow

Mon 21/9

20:40-20:45

1 stop18h 05m

฿31,771

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 20/10

23:50-12:25

1 stop18h 35m

London Heathrow

Tue 17/11

22:00-20:15

1 stop15h 15m

฿31,771

Flights are sorted by cheapest return flights first.

Deals found on 21/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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 ฿7,502). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of ฿22,866). 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 22 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 22 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.

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 22 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
1,457 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

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
1,457 reviews
EVA Air
8.5
Very Good
1,457 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

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
3,576 reviews
EVA Air
8.5
Very Good
1,457 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

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
400 reviews
EVA Air
8.5
Very Good
1,457 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

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
3,730 reviews
EVA Air
8.5
Very Good
1,457 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

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!
เอทิฮัดแอร์เวย์
7.3
Good
1,442 reviews
EVA Air
8.5
Very Good
1,457 reviews
Check prices

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.7

Overall

8.5

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?

    There are many flights that can get you from Thailand to London Heathrow Airport in 15h 25m. Fly via Qatar Airways, China Eastern, 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?

    ฿6,335 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 ฿6,736 and ฿7,348, respectively.

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

    While some choose either Bangkok Don Mueang Intl - London Heathrow or Phuket City - 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 TAP ปอร์ตูกัล (100%), แอร์แคนาดา (87%) and Thai Airways (71%).

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

    While on average a flight from Thailand to London Heathrow Airport is generally ฿62,662, our data shows the cheapest flight currently is ฿18,446. When looking at the most popular route, (Bangkok Suvarnabhumi - London Heathrow), you can expect to pay ฿24,889 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 ฿7,502). Flying from Thailand to London Heathrow Airport in July is currently the most expensive (average of ฿22,866). 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

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 17,341 searches. Data last updated 22 May 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest฿9,352Average฿23,344FlexibilityNo cancel feeOn-time69%
Search China Southern flights
คูเวตแอร์เวย์Cheapest฿10,969Average฿26,882FlexibilityNo cancel feeOn-time64%
Search คูเวตแอร์เวย์ flights
เอทิฮัดแอร์เวย์Cheapest฿13,134Average฿30,781FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
FinnairCheapest฿18,535Average฿27,949FlexibilityNo cancel feeOn-time76%
Search Finnair flights
โอมานแอร์Cheapest฿21,401Average฿25,014FlexibilityNo cancel feeOn-time76%
Search โอมานแอร์ flights
China EasternCheapest฿23,683Average฿26,903FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest฿26,674Average฿31,487FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
บริติชแอร์เวย์Cheapest฿27,519Average฿30,867FlexibilityNo cancel feeOn-time70%
Search บริติชแอร์เวย์ flights
EmiratesCheapest฿28,062Average฿32,321FlexibilityNo cancel feeOn-time75%
Search Emirates flights
ออสเตรียนแอร์ไลน์Cheapest฿28,265Average฿32,422FlexibilityNo 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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.