Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Thailand to London Heathrow Airport from ฿9,842

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
29 Aug — 5 Sep1
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 30 July 2026.

Wed 9/915:20
HKT
-
LHR
1 stop29h 45m
Multiple Airlines
Wed 16/922:40
LHR
-
HKT
1 stop37h 05m
Multiple Airlines
Deal found 30/7฿22,764
Wed 9/903:20
HKT
-
LHR
1 stop17h 45m
Multiple Airlines
Thu 17/922:00
LHR
-
HKT
1 stop32h 50m
Multiple Airlines
Deal found 27/7฿23,132
Tue 27/1009:10
CNX
-
LHR
1 stop28h 30m
Multiple Airlines
Sun 8/1121:00
LHR
-
CNX
1 stop34h 20m
Multiple Airlines
Deal found 28/7฿23,668
Sun 6/915:20
HKT
-
LHR
1 stop29h 45m
Multiple Airlines
Wed 16/922:40
LHR
-
HKT
1 stop37h 05m
Multiple Airlines
Deal found 27/7฿23,701
Fri 31/712:20
HKT
-
LHR
1 stop36h 35m
Multiple Airlines
Mon 31/820:25
LHR
-
HKT
1 stop39h 20m
Multiple Airlines
Deal found 28/7฿24,002
Thu 10/915:20
HKT
-
LHR
1 stop29h 45m
Multiple Airlines
Thu 24/906:40
LHR
-
HKT
2 stops33h 00m
Multiple Airlines
Deal found 27/7฿24,036
Mon 26/1009:10
CNX
-
LHR
1 stop16h 00m
Multiple Airlines
Tue 3/1121:00
LHR
-
CNX
2 stops29h 05m
Multiple Airlines
Deal found 26/7฿24,036
Tue 8/915:20
HKT
-
LHR
1 stop29h 45m
Multiple Airlines
Sat 19/922:00
LHR
-
HKT
1 stop32h 50m
Multiple Airlines
Deal found 27/7฿24,136
Fri 11/903:20
HKT
-
LHR
1 stop21h 25m
Multiple Airlines
Sat 19/922:00
LHR
-
HKT
1 stop32h 50m
Multiple Airlines
Deal found 29/7฿24,170
Sun 13/911:55
CNX
-
LHR
2 stops33h 10m
Multiple Airlines
Sun 20/922:40
LHR
-
CNX
1 stop17h 10m
Multiple Airlines
Deal found 30/7฿24,203
Wed 9/915:20
HKT
-
LHR
1 stop29h 45m
Multiple Airlines
Wed 30/921:20
LHR
-
HKT
1 stop18h 20m
Multiple Airlines
Deal found 26/7฿24,337
Fri 11/920:00
CNX
-
LHR
2 stops28h 45m
Multiple Airlines
Fri 18/922:40
LHR
-
CNX
1 stop17h 10m
Multiple Airlines
Deal found 30/7฿25,241

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 30 July 2026.

Round-trip from

฿22,764

One-way from

฿9,842

Popular in

July

Cheapest in

November

Average price

฿36,455

Good round-trip deal

฿38,176 or less

Good one-way deal

฿17,747 or less
Air China
  • Air China
  • 9/9-16/9
  • 2 total stops
  • 66h 50m total
  • Thailand to London
Search Deals
7/11
  • 7/11
  • 2 total stops
  • 57h 20m total
  • Thailand to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (฿75,900 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿14,821 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 30 July 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

Fri 11/9

03:20-18:45

1 stop21h 25m

London Heathrow

Sat 19/9

22:00-12:50

1 stop32h 50m

฿24,170

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 11/9

10:10-18:45

2 stops38h 35m

London Heathrow

Fri 18/9

22:40-21:50

1 stop17h 10m

฿25,408

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 12/10

23:05-17:40

1 stop24h 35m

London Heathrow

Sun 25/10

20:25-21:50

1 stop18h 25m

฿26,982

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 10/9

14:35-07:00

2 stops22h 25m

London Heathrow

Thu 17/9

21:20-08:10

3 stops28h 50m

฿27,015

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Thu 12/11

15:30-14:30

1 stop30h 00m

London Heathrow

Thu 19/11

06:00-08:00

2 stops19h 00m

฿27,283

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 26/9

09:00-19:10

1 stop16h 10m

London Heathrow

Mon 12/10

20:50-17:45

1 stop14h 55m

฿28,019

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Wed 9/9

09:25-07:00

2 stops27h 35m

London Heathrow

Wed 16/9

21:45-08:45

2 stops29h 00m

฿28,656

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Thu 10/9

09:25-15:05

2 stops35h 40m

London Heathrow

Thu 17/9

21:45-08:45

2 stops29h 00m

฿28,789

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Tue 6/10

09:25-15:05

2 stops35h 40m

London Heathrow

Mon 19/10

14:45-08:45

2 stops36h 00m

฿29,024

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 17/8

03:15-18:40

1 stop21h 25m

London Heathrow

Sat 12/9

21:20-20:55

1 stop17h 35m

฿29,057

Flights are sorted by cheapest return flights first.

Deals found on 28/7

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, November is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of ฿30,363). Flying from Thailand to London Heathrow Airport in August is currently the most expensive (average of ฿38,029). 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 30 July 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 30 July 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 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 58 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 30 July 2026.
Get a feel of what it's like to fly with EVA Air,Emirates, andโอมานแอร์ 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
1,506 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

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
1,506 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

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
3,640 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

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.
โอมานแอร์
8.0
Very Good
135 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

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
412 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

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.
เอทิฮัดแอร์เวย์
7.3
Good
1,499 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.5

Crew

8.7

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?

    There are many flights that can get you from Thailand to London Heathrow Airport in 16h 10m. Fly via Air China, โอมานแอร์, or เอทิฮัดแอร์เวย์ to get the fastest option. The distance between Thailand and London Heathrow Airport is about 9571 km. This flight may include one or multiple stops.

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

    ฿6,501 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 ฿6,913 and ฿7,541, 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 แอร์แคนาดา (85%), TAP ปอร์ตูกัล (85%) and Thai Airways (79%).

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

    While on average a flight from Thailand to London Heathrow Airport is generally ฿55,327, our data shows the cheapest flight currently is ฿13,885. When looking at the most popular route, (Bangkok Suvarnabhumi - London Heathrow), you can expect to pay ฿23,065 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, November is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of ฿30,363). Flying from Thailand to London Heathrow Airport in August is currently the most expensive (average of ฿38,029). 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 30 July 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest฿9,598Average฿25,308FlexibilityNo cancel feeOn-time69%
Search China Southern flights
เอทิฮัดแอร์เวย์Cheapest฿12,201Average฿31,547FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
FinnairCheapest฿19,022Average฿29,726FlexibilityNo cancel feeOn-time76%
Search Finnair flights
โอมานแอร์Cheapest฿21,963Average฿26,844FlexibilityNo cancel feeOn-time76%
Search โอมานแอร์ flights
China EasternCheapest฿24,459Average฿27,436FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest฿28,783Average฿32,314FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿28,905Average฿34,344FlexibilityNo cancel feeOn-time75%
Search Emirates flights
บริติชแอร์เวย์Cheapest฿29,275Average฿37,825FlexibilityNo cancel feeOn-time70%
Search บริติชแอร์เวย์ flights
EVA AirCheapest฿32,689Average฿38,064FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Thai AirwaysCheapest฿36,913Average฿44,392FlexibilityNo cancel feeOn-time77%
Search Thai 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 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.