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

For as low as £522, SAUDIA can have you in London Heathrow Airport from Thailand in 23h 10m. Thailand and London Heathrow Airport are separated by a distance of 5947 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 Oman Air, with whom users have recently found tickets for as low as £186. However, be on the lookout for offers from Air China and Malaysia Airlines, as they are both options that can get you from Thailand to London Heathrow Airport for a low price.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 cheapest flights from Thailand to London Heathrow Airport?

On average you can expect to pay £1,091 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £361 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £511.

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 EVA Air (84%), Thai Airways (83%) or Air Canada (83%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Thailand to London Heathrow Airport?

The most popular airlines flying from Thailand to London Heathrow Airport are Air India, Finnair and British Airways. Something to consider prior to booking your 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.

£186+ Flights from Thailand to London Heathrow Airport

Cheap flight deals from Thailand to Heathrow

Round-trip from	£516
One-way from	£186
Popular in	January
Cheapest in	October
Average price	£668
Good round-trip deal	£643 or less
Good one-way deal	£379 or less

Hainan Airlines
27/10-24/11
3 total stops
63h 25m total
Thailand to London

Search Deals

Oman Air
16/10
1 total stop
28h 20m total
Thailand to London

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£21 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

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

Find flight deals from Thailand to Heathrow

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 18 September 2025.

Mon 27/1017:55BKK - LHR

1 stop33h 20mMultiple Airlines

Mon 24/1121:00LHR - BKK

2 stops30h 05mMultiple Airlines

Deal found 17/9£516

Sat 18/1021:55BKK - LHR

1 stop26h 45mMultiple Airlines

Sat 1/1120:25LHR - BKK

1 stop20h 45mMultiple Airlines

Deal found 16/9£517

Tue 18/1115:20BKK - LHR

1 stop23h 10mSAUDIA

Tue 9/1222:05LHR - BKK

1 stop18h 25mSAUDIA

Deal found 17/9£519

Wed 5/1101:15BKK - LHR

1 stop18h 00mSAUDIA

Wed 12/1110:00LHR - BKK

1 stop20h 40mSAUDIA

Deal found 18/9£519

Fri 19/1219:10HKT - LHR

1 stop17h 45mMultiple Airlines

Wed 14/106:35LHR - HKT

2 stops31h 45mMultiple Airlines

Deal found 16/9£521

Mon 20/1005:05BKK - LHR

1 stop19h 35mMultiple Airlines

Mon 17/1121:00LHR - BKK

2 stops30h 05mMultiple Airlines

Deal found 16/9£521

Sun 23/1115:20BKK - LHR

1 stop23h 10mSAUDIA

Thu 8/122:05LHR - BKK

1 stop18h 25mSAUDIA

Deal found 17/9£522

Sun 19/1002:10BKK - LHR

1 stop22h 30mMultiple Airlines

Sun 26/1021:10LHR - BKK

1 stop31h 00mMultiple Airlines

Deal found 18/9£523

Thu 16/1020:50HKT - LHR

1 stop28h 20mMultiple Airlines

Tue 28/1013:55LHR - HKT

1 stop26h 40mMultiple Airlines

Deal found 16/9£526

Tue 21/1015:25BKK - LHR

1 stop22h 05mSAUDIA

Wed 29/1010:00LHR - BKK

1 stop20h 40mSAUDIA

Deal found 17/9£526

Thu 30/1001:35BKK - LHR

2 stops23h 00mHainan Airlines

Fri 7/1121:00LHR - BKK

2 stops30h 05mHainan Airlines

Deal found 16/9£527

Wed 17/1222:35HKT - LHR

1 stop24h 20mAir China

Fri 16/117:40LHR - HKT

1 stop20h 40mAir China

Deal found 16/9£560

Best flights from Thailand to Heathrow
Discover carefully curated flight deals from Thailand to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Sun 23/1115:20BKK - LHR

1 stop23h 10mSAUDIA

Sun 11/122:05LHR - BKK

1 stop18h 25mSAUDIA

Deal found 17/9£522

Tue 16/1218:25HKT - LHR

1 stop28h 30mAir China

Thu 15/120:25LHR - HKT

1 stop17h 55mAir China

Deal found 16/9£560

Tue 3/314:50CNX - LHR

1 stop31h 35mMalaysia Airlines

Fri 13/310:25LHR - CNX

1 stop20h 25mMalaysia Airlines

Deal found 17/9£569

Sat 22/1120:20DMK - LHR

2 stops25h 35mMultiple Airlines

Thu 8/121:05LHR - DMK

1 stop25h 50mMultiple Airlines

Deal found 17/9£577

Thu 30/1001:35BKK - LHR

2 stops23h 00mHainan Airlines

Fri 7/1121:00LHR - BKK

2 stops30h 05mHainan Airlines

Deal found 17/9£585

Tue 17/203:00BKK - LHR

1 stop17h 45mKuwait Airways

Sun 22/210:45LHR - BKK

1 stop16h 20mKuwait Airways

Deal found 16/9£610

Sun 28/920:50BKK - LHR

1 stop19h 25mAir India

Sun 5/1012:30LHR - BKK

1 stop19h 05mAir India

Deal found 17/9£624

Fri 31/1008:05BKK - LHR

1 stop19h 35mFinnair

Fri 7/1116:15LHR - BKK

1 stop38h 00mFinnair

Deal found 17/9£638

Wed 1/1020:55HKT - LHR

1 stop24h 20mEtihad Airways

Wed 8/1014:45LHR - HKT

1 stop26h 50mEtihad Airways

Deal found 17/9£649

Sun 9/1109:35USM - LHR

2 stops19h 05mSWISS

Fri 28/1109:00LHR - USM

2 stops18h 40mSWISS

Deal found 16/9£742

Tue 3/312:10CNX - LHR

2 stops33h 35mGulf Air

Fri 13/321:50LHR - CNX

2 stops32h 55mGulf Air

Deal found 16/9£751

Thu 5/314:25CEI - LHR

1 stop23h 15mThai Airways

Sat 7/311:50LHR - CEI

1 stop19h 05mThai Airways

Deal found 15/9£977

Thu 5/318:55CEI - LHR

2 stops27h 55mLufthansa

Sat 7/320:15LHR - CEI

2 stops39h 05mLufthansa

Deal found 15/9£1,016

Tue 3/215:20BKK - LHR

1 stop23h 10mSAUDIA

Mon 9/210:00LHR - BKK

1 stop20h 40mSAUDIA

Deal found 17/9£522

Mon 22/1218:25HKT - LHR

1 stop28h 30mAir China

Sat 17/117:40LHR - HKT

1 stop20h 40mAir China

Deal found 16/9£560

Thu 12/318:20HKT - LHR

1 stop28h 05mMalaysia Airlines

Mon 16/310:25LHR - HKT

1 stop24h 10mMalaysia Airlines

Deal found 15/9£577

Sun 16/1115:20BKK - LHR

1 stop23h 10mSAUDIA

Tue 9/1222:05LHR - BKK

1 stop18h 25mSAUDIA

Deal found 17/9£545

Mon 20/1021:20DMK - LHR

2 stops24h 35mMultiple Airlines

Thu 6/1121:35LHR - DMK

1 stop18h 00mMultiple Airlines

Deal found 16/9£604

Mon 22/1222:35HKT - LHR

1 stop24h 20mAir China

Wed 14/120:25LHR - HKT

1 stop17h 55mAir China

Deal found 16/9£560

Thu 5/314:50CNX - LHR

1 stop31h 35mMalaysia Airlines

Sat 7/310:25LHR - CNX

1 stop18h 00mMalaysia Airlines

Deal found 17/9£584

Mon 15/1203:10HKT - LHR

1 stop22h 00mEtihad Airways

Fri 16/113:55LHR - HKT

1 stop26h 40mEtihad Airways

Deal found 16/9£659

Wed 19/1101:15BKK - LHR

1 stop18h 00mSAUDIA

Wed 10/1210:00LHR - BKK

1 stop20h 40mSAUDIA

Deal found 17/9£545

Wed 17/1222:35HKT - LHR

1 stop24h 20mAir China

Thu 15/120:25LHR - HKT

1 stop17h 55mAir China

Deal found 16/9£560

Sun 28/920:50BKK - LHR

1 stop28h 40mMultiple Airlines

Tue 30/914:45LHR - BKK

1 stop34h 35mMultiple Airlines

Deal found 17/9£624

Tue 16/1203:10HKT - LHR

1 stop18h 20mEtihad Airways

Sat 17/113:55LHR - HKT

1 stop26h 40mEtihad Airways

Deal found 16/9£661

Thu 18/1218:25HKT - LHR

1 stop28h 30mAir China

Sat 17/117:40LHR - HKT

1 stop20h 40mAir China

Deal found 16/9£560

Tue 11/1110:00USM - LHR

2 stops29h 05mSWISS

Thu 27/1113:45LHR - USM

2 stops18h 10mSWISS

Deal found 16/9£764

Fri 17/1020:35DMK - LHR

2 stops22h 10mMultiple Airlines

Mon 27/1021:05LHR - DMK

1 stop24h 05mMultiple Airlines

Deal found 16/9£635

Tue 18/1115:20BKK - LHR

1 stop23h 10mSAUDIA

Fri 12/1210:00LHR - BKK

1 stop20h 40mSAUDIA

Deal found 17/9£582

Thu 30/1020:15DMK - LHR

1 stop30h 15mMultiple Airlines

Mon 3/1120:30LHR - DMK

1 stop26h 35mMultiple Airlines

Deal found 15/9£638

Direct flights from Thailand to Heathrow
Explore direct flight options from Thailand to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2025.

Tue 4/1112:40BKK - LHR

Nonstop13h 25mEVA Air

Fri 21/1121:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 16/9£715

Mon 27/1012:40BKK - LHR

Nonstop13h 25mEVA Air

Wed 29/1021:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 15/9£717

Mon 6/1012:20BKK - LHR

Nonstop13h 00mEVA Air

Thu 4/1221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 16/9£718

Tue 30/912:45BKK - LHR

Nonstop12h 35mEVA Air

Tue 7/1021:35LHR - BKK

Nonstop11h 55mEVA Air

Deal found 16/9£727

Mon 29/912:45BKK - LHR

Nonstop12h 35mEVA Air

Sun 2/1121:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 16/9£728

Thu 15/112:40BKK - LHR

Nonstop13h 25mEVA Air

Thu 9/421:35LHR - BKK

Nonstop11h 55mEVA Air

Deal found 15/9£729

Wed 8/1012:20BKK - LHR

Nonstop13h 00mEVA Air

Wed 8/421:35LHR - BKK

Nonstop11h 55mEVA Air

Deal found 16/9£731

Thu 6/1112:40BKK - LHR

Nonstop13h 25mEVA Air

Wed 12/1121:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 17/9£732

Thu 2/1012:20BKK - LHR

Nonstop13h 00mEVA Air

Sun 5/1021:35LHR - BKK

Nonstop11h 55mEVA Air

Deal found 17/9£733

Mon 29/912:45BKK - LHR

Nonstop12h 35mEVA Air

Mon 6/1021:35LHR - BKK

Nonstop11h 55mEVA Air

Deal found 15/9£734

Last-minute flights from Thailand to Heathrow
Discover last-minute flight deals from Thailand to Heathrow. Data last updated 18 September 2025 and is based on user searches.

Mon 22/915:25BKK - LHR

1 stop27h 15mSAUDIA

Wed 22/1016:15LHR - BKK

1 stop15h 30mSAUDIA

Deal found 17/9£588

Tue 23/923:40BKK - LHR

2 stops28h 45mIndiGo

Sat 27/906:30LHR - BKK

2 stops34h 10mIndiGo

Deal found 16/9£569

Wed 24/915:25BKK - LHR

1 stop35h 05mSAUDIA

Wed 22/1016:15LHR - BKK

1 stop15h 30mSAUDIA

Deal found 17/9£559

Wed 24/923:40BKK - LHR

2 stops28h 45mIndiGo

Sun 28/922:25LHR - BKK

2 stops42h 15mIndiGo

Deal found 17/9£571

Wed 24/915:25BKK - LHR

1 stop35h 05mSAUDIA

Tue 21/1014:40LHR - BKK

1 stop17h 05mSAUDIA

Deal found 17/9£582

Fri 26/917:10BKK - LHR

2 stops27h 55mIndiGo

Sat 4/1006:30LHR - BKK

2 stops34h 10mIndiGo

Deal found 17/9£561

Fri 26/907:05BKK - LHR

1 stop19h 35mFinnair

Sun 12/1016:10LHR - BKK

1 stop31h 20mFinnair

Deal found 16/9£581

Fri 26/917:10BKK - LHR

2 stops28h 50mIndiGo

Sat 11/1006:30LHR - BKK

2 stops34h 10mIndiGo

Deal found 17/9£590

Tue 30/920:25DMK - LHR

2 stops17h 30mMultiple Airlines

Tue 7/1006:00LHR - DMK

2 stops18h 00mMultiple Airlines

Deal found 16/9£593

Sat 4/1020:25DMK - LHR

2 stops24h 40mMultiple Airlines

Sat 1/1121:05LHR - DMK

1 stop25h 50mMultiple Airlines

Deal found 16/9£590

Sun 12/1023:05CNX - LHR

1 stop24h 40mAir China

Sat 25/1022:40LHR - CNX

1 stop17h 10mAir China

Deal found 16/9£561

Fri 17/1019:30DMK - LHR

3 stops25h 35mMultiple Airlines

Sun 19/1022:00LHR - DMK

1 stop21h 45mMultiple Airlines

Deal found 16/9£582

One-way flights from Thailand to Heathrow
Search for one-way flight options from Thailand to Heathrow. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Thu 16/1020:50HKT - LHR

1 stop28h 20mOman Air

Deal found 18/9£186

Mon 8/1208:50HKT - LHR

1 stop16h 35mOman Air

Deal found 15/9£188

Sat 13/1207:30HKT - LHR

2 stops32h 25mMultiple Airlines

Deal found 15/9£188

Fri 12/1222:05HKT - LHR

2 stops41h 50mMultiple Airlines

Deal found 16/9£190

Sun 23/1119:10HKT - LHR

1 stop17h 45mOman Air

Deal found 17/9£191

Sun 9/1108:40HKT - LHR

1 stop28h 15mOman Air

Deal found 16/9£191

Tue 30/920:20HKT - LHR

1 stop28h 50mOman Air

Deal found 18/9£193

Mon 24/1108:50HKT - LHR

1 stop16h 35mOman Air

Deal found 16/9£193

Sat 8/1119:10HKT - LHR

1 stop17h 45mOman Air

Deal found 16/9£194

Sun 19/1020:50HKT - LHR

1 stop28h 20mOman Air

Deal found 18/9£199

Sun 16/1119:10HKT - LHR

1 stop17h 45mOman Air

Deal found 17/9£200

Wed 12/1120:20DMK - LHR

2 stops24h 25mMultiple Airlines

Deal found 16/9£240

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

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 23/11

15:20-07:30

1 stop23h 10m

London Heathrow

Sun 11/1

22:05-23:30

1 stop18h 25m

£522

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 3/2

15:20-07:30

1 stop23h 10m

London Heathrow

Mon 9/2

10:00-13:40

1 stop20h 40m

£522

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 16/11

15:20-07:30

1 stop23h 10m

London Heathrow

Tue 9/12

22:05-23:30

1 stop18h 25m

£545

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 19/11

01:15-12:15

1 stop18h 00m

London Heathrow

Wed 10/12

10:00-13:40

1 stop20h 40m

£545

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Tue 16/12

18:25-15:55

1 stop28h 30m

London Heathrow

Thu 15/1

20:25-21:20

1 stop17h 55m

£560

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Mon 22/12

18:25-15:55

1 stop28h 30m

London Heathrow

Sat 17/1

17:40-21:20

1 stop20h 40m

£560

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Mon 22/12

22:35-15:55

1 stop24h 20m

London Heathrow

Wed 14/1

20:25-21:20

1 stop17h 55m

£560

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Wed 17/12

22:35-15:55

1 stop24h 20m

London Heathrow

Thu 15/1

20:25-21:20

1 stop17h 55m

£560

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Thu 18/12

18:25-15:55

1 stop28h 30m

London Heathrow

Sat 17/1

17:40-21:20

1 stop20h 40m

£560

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 3/3

14:50-15:25

1 stop31h 35m

London Heathrow

Fri 13/3

10:25-13:50

1 stop20h 25m

£569

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 60 results

...

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, January is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £112). Flying from Thailand to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

Weekly flight availability from Thailand to London Heathrow Airport

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

Reviews of airlines servicing Heathrow

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

8.4

Very Good

1,237 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

EVA Air

8.4

Very Good

1,237 reviews

EVA Air

8.4

Very Good

1,237 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Emirates

8.1

Very Good

3,339 reviews

EVA Air

8.4

Very Good

1,237 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Thai Airways

7.8

Good

350 reviews

EVA Air

8.4

Very Good

1,237 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Qatar Airways

7.4

Good

3,622 reviews

EVA Air

8.4

Very Good

1,237 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Etihad Airways

7.4

Good

1,251 reviews

EVA Air

8.4

Very Good

1,237 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Related info for your journey

How long is the flight from Thailand to London Heathrow Airport?
For as low as £522, SAUDIA can have you in London Heathrow Airport from Thailand in 23h 10m. Thailand and London Heathrow Airport are separated by a distance of 5947 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 Oman Air, with whom users have recently found tickets for as low as £186. However, be on the lookout for offers from Air China and Malaysia 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 EVA Air (84%), Thai Airways (83%) or Air Canada (83%) 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 £1,091 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £361 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £511.
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, January is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £112). Flying from Thailand to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Milton Keynes

Croydon

Hounslow

Slough

Gatwick

Northampton

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Watford

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Ipswich

Swindon

Dartford

Guildford

Brentford

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Thailand to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
China Southern	Cheapest£234	Average£509	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Air India	Cheapest£342	Average£646	FlexibilityNo cancel fee	On-timeN/A	Search Air India flights
Austrian Airlines	Cheapest£446	Average£670	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
China Eastern	Cheapest£493	Average£526	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Kuwait Airways	Cheapest£503	Average£578	FlexibilityNo cancel fee	On-time64%	Search Kuwait Airways flights
Turkish Airlines	Cheapest£547	Average£575	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
SWISS	Cheapest£549	Average£690	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Qatar Airways	Cheapest£555	Average£738	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights
Etihad Airways	Cheapest£567	Average£664	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Vietnam Airlines	Cheapest£578	Average£584	FlexibilityNo cancel fee	On-time81%	Search Vietnam Airlines flights

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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?

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Cheap flights from Thailand to London Heathrow Airport from £186

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Thailand to Heathrow

Keep the following information in mind while searching for Thailand to Heathrow flight deals. Data was last updated 18 September 2025.

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Find flight deals from Thailand to Heathrow

Cheapest flights from Thailand to HeathrowExplore 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 18 September 2025.

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 18 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Thailand to London Heathrow Airport that are best for you.

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.

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?

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 18 September 2025.

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 18 September 2025.

Reviews of airlines servicing Heathrow

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.

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?

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

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

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

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

Can I find deals for flights from Thailand to Heathrow that include hotel bookings?

How can I find direct flights from Thailand to Heathrow?

Can I find deals for business class flights from Thailand to Heathrow?

What is the cheapest month to book a flight from Thailand to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

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Alternative routes for Thailand to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Thailand to Heathrow

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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?

Why should you use Cheapflights to find cheap flight tickets from Thailand to Heathrow?

Can Cheapflights find flights from Thailand to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Thailand to Heathrow become cheaper?

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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 18 September 2025.