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

For as low as £542, IndiGo can have you in London Heathrow Airport from Thailand in 16h 50m. 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 Scandinavian Airlines, with whom users have recently found tickets for as low as £133. However, be on the lookout for offers from Oman Air and Etihad Airways, 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 Chiang Mai - London Heathrow.

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

On average you can expect to pay £828 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £333 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £442.

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 (97%), Thai Airways (92%) or EVA Air (89%) 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 EVA Air, Thai Airways and Emirates. 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.

£177+ Flights from Thailand to London Heathrow Airport

Cheap flight deals from Thailand to Heathrow

Enter your travel dates to find the best prices.

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 2 January 2026.

Wed 18/322:20KBV - LHR

1 stop28h 00mIndiGo

Fri 3/420:20LHR - KBV

1 stop31h 50mIndiGo

Deal found 1/1£531

Thu 12/220:05BKK - LHR

1 stop16h 50mOman Air

Mon 9/320:05LHR - BKK

1 stop27h 40mOman Air

Deal found 2/1£542

Sun 15/208:50CNX - LHR

1 stop28h 50mEtihad Airways

Sun 22/220:55LHR - CNX

1 stop26h 15mEtihad Airways

Deal found 1/1£557

Sun 15/208:50CNX - LHR

1 stop16h 20mMultiple Airlines

Sun 22/220:05LHR - CNX

2 stops18h 45mMultiple Airlines

Deal found 1/1£580

Mon 16/221:15BKK - LHR

1 stop17h 00mVietnam Airlines

Sun 8/311:00LHR - BKK

1 stop17h 20mVietnam Airlines

Deal found 1/1£627

Thu 22/123:05CNX - LHR

1 stop25h 45mAir China

Mon 26/117:40LHR - CNX

1 stop21h 10mAir China

Deal found 1/1£646

Wed 1/401:50BKK - LHR

1 stop16h 50mSAUDIA

Wed 15/416:15LHR - BKK

1 stop15h 30mSAUDIA

Deal found 31/12£662

Thu 25/614:45BKK - LHR

2 stops22h 45mAir India

Tue 7/721:45LHR - BKK

1 stop16h 40mAir India

Deal found 1/1£678

Wed 20/507:05BKK - LHR

1 stop38h 05mFinnair

Fri 17/718:10LHR - BKK

1 stop29h 20mFinnair

Deal found 2/1£682

Tue 3/312:00KBV - LHR

1 stop35h 10mEmirates

Sat 7/320:20LHR - KBV

1 stop31h 40mEmirates

Deal found 31/12£682

Sat 28/318:50CNX - LHR

1 stop30h 10mChina Southern

Sat 18/421:00LHR - CNX

2 stops38h 50mChina Southern

Deal found 31/12£695

Wed 10/612:35CNX - LHR

1 stop23h 20mMalaysia Airlines

Sat 20/611:00LHR - CNX

1 stop18h 40mMalaysia Airlines

Deal found 31/12£701

Wed 11/216:25CNX - LHR

2 stops32h 05mChina Eastern

Sat 21/221:00LHR - CNX

2 stops29h 05mChina Eastern

Deal found 31/12£703

Wed 28/107:15USM - LHR

1 stop18h 50mEVA Air

Wed 25/221:20LHR - USM

1 stop14h 20mEVA Air

Deal found 1/1£896

Mon 9/319:25CEI - LHR

1 stop26h 55mSingapore Airlines

Wed 11/321:45LHR - CEI

1 stop38h 05mSingapore Airlines

Deal found 31/12£999

Mon 9/315:35USM - LHR

2 stops21h 50mQatar Airways

Wed 11/308:05LHR - USM

2 stops19h 35mQatar Airways

Deal found 31/12£1,054

Sun 15/211:15KBV - LHR

1 stop35h 30mIndiGo

Sun 22/221:30LHR - KBV

1 stop29h 30mIndiGo

Deal found 1/1£534

Mon 9/310:15CEI - LHR

2 stops60h 55mTurkish Airlines

Wed 11/322:35LHR - CEI

2 stops28h 05mTurkish Airlines

Deal found 31/12£1,078

Wed 11/209:00BKK - LHR

1 stop16h 25mOman Air

Sun 8/308:25LHR - BKK

1 stop15h 20mOman Air

Deal found 2/1£542

Thu 5/215:35CNX - LHR

1 stop32h 55mMultiple Airlines

Mon 9/220:05LHR - CNX

2 stops18h 45mMultiple Airlines

Deal found 2/1£583

Thu 28/509:00BKK - LHR

1 stop16h 10mOman Air

Thu 18/620:50LHR - BKK

1 stop28h 00mOman Air

Deal found 1/1£554

Wed 6/502:25HKT - LHR

1 stop34h 35mEtihad Airways

Fri 12/614:45LHR - HKT

1 stop15h 20mEtihad Airways

Deal found 1/1£638

Wed 18/311:15KBV - LHR

1 stop39h 15mMultiple Airlines

Fri 3/415:35LHR - KBV

2 stops42h 35mMultiple Airlines

Deal found 1/1£586

Wed 6/502:25HKT - LHR

1 stop34h 35mEtihad Airways

Thu 11/621:45LHR - HKT

1 stop32h 20mEtihad Airways

Deal found 1/1£638

Thu 7/514:40CNX - LHR

1 stop21h 15mMalaysia Airlines

Thu 21/511:00LHR - CNX

1 stop18h 40mMalaysia Airlines

Deal found 2/1£703

Sat 14/220:05BKK - LHR

1 stop29h 20mOman Air

Sat 21/220:05LHR - BKK

1 stop27h 40mOman Air

Deal found 31/12£583

Thu 5/214:45BKK - LHR

2 stops22h 50mAir India

Thu 5/313:30LHR - BKK

1 stop17h 05mAir India

Deal found 1/1£712

Mon 19/121:20DMK - LHR

2 stops27h 50mMultiple Airlines

Fri 23/122:00LHR - DMK

1 stop20h 35mMultiple Airlines

Deal found 1/1£593

Wed 6/502:25HKT - LHR

1 stop34h 35mEtihad Airways

Wed 17/614:45LHR - HKT

1 stop15h 20mEtihad Airways

Deal found 1/1£638

Sun 15/211:15KBV - LHR

1 stop35h 30mMultiple Airlines

Sun 22/206:30LHR - KBV

2 stops20h 30mMultiple Airlines

Deal found 1/1£600

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 2 January 2026.

Mon 19/112:40BKK - LHR

Nonstop13h 25mEVA Air

Fri 23/121:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 1/1£732

Thu 29/112:40BKK - LHR

Nonstop13h 25mEVA Air

Thu 5/221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 1/1£739

Mon 16/212:40BKK - LHR

Nonstop13h 25mEVA Air

Mon 23/221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 1/1£740

Sat 7/212:40BKK - LHR

Nonstop13h 25mEVA Air

Sun 22/221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 1/1£746

Sat 31/112:40BKK - LHR

Nonstop13h 25mEVA Air

Mon 2/221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 1/1£747

Mon 19/112:40BKK - LHR

Nonstop13h 25mEVA Air

Mon 16/221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 2/1£748

Tue 20/112:40BKK - LHR

Nonstop13h 25mEVA Air

Thu 22/121:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 31/12£749

Wed 28/112:40BKK - LHR

Nonstop13h 25mEVA Air

Wed 4/221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 30/12£751

Wed 4/212:40BKK - LHR

Nonstop13h 25mEVA Air

Sat 28/221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 31/12£754

Mon 12/112:40BKK - LHR

Nonstop13h 25mEVA Air

Thu 15/121:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 2/1£755

Wed 20/512:20BKK - LHR

Nonstop13h 00mEVA Air

Wed 3/621:35LHR - BKK

Nonstop11h 55mEVA Air

Deal found 1/1£758

Fri 30/112:40BKK - LHR

Nonstop13h 25mEVA Air

Wed 4/221:20LHR - BKK

Nonstop11h 40mEVA Air

Deal found 2/1£760

Last-minute flights from Thailand to Heathrow
Discover last-minute flight deals from Thailand to Heathrow. Data last updated 2 January 2026 and is based on user searches.

Thu 1/113:20HKT - LHR

3 stops31h 30mMultiple Airlines

Fri 16/113:55LHR - HKT

1 stop26h 40mMultiple Airlines

Deal found 31/12£613

Fri 16/110:55HKT - LHR

2 stops26h 45mMultiple Airlines

Wed 21/108:50LHR - HKT

2 stops25h 35mMultiple Airlines

Deal found 1/1£615

Mon 19/109:25BKK - LHR

1 stop15h 45mMultiple Airlines

Wed 28/119:45LHR - BKK

1 stop31h 20mMultiple Airlines

Deal found 1/1£467

Mon 19/109:25BKK - LHR

1 stop28h 15mMultiple Airlines

Fri 23/121:00LHR - BKK

2 stops38h 05mMultiple Airlines

Deal found 1/1£479

Mon 19/102:55BKK - LHR

1 stop34h 45mMultiple Airlines

Wed 28/119:45LHR - BKK

1 stop31h 20mMultiple Airlines

Deal found 1/1£480

Mon 19/109:25BKK - LHR

1 stop15h 45mMultiple Airlines

Tue 27/121:00LHR - BKK

1 stop18h 25mMultiple Airlines

Deal found 1/1£482

Tue 20/111:10BKK - LHR

1 stop36h 10mMultiple Airlines

Thu 22/121:00LHR - BKK

1 stop20h 55mMultiple Airlines

Deal found 31/12£465

Tue 20/111:10BKK - LHR

1 stop36h 10mMultiple Airlines

Wed 18/221:00LHR - BKK

1 stop21h 55mMultiple Airlines

Deal found 31/12£469

Tue 20/119:10BKK - LHR

1 stop28h 10mMultiple Airlines

Thu 29/121:00LHR - BKK

1 stop18h 25mMultiple Airlines

Deal found 1/1£486

Wed 21/109:15BKK - LHR

1 stop33h 50mMultiple Airlines

Fri 23/121:00LHR - BKK

2 stops30h 05mMultiple Airlines

Deal found 30/12£485

Wed 28/108:55BKK - LHR

1 stop36h 35mMultiple Airlines

Wed 4/221:00LHR - BKK

1 stop18h 25mMultiple Airlines

Deal found 30/12£473

Thu 29/119:10BKK - LHR

2 stops29h 25mMultiple Airlines

Thu 5/221:00LHR - BKK

1 stop24h 45mMultiple Airlines

Deal found 1/1£465

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 2 January 2026.

Sun 15/311:10BKK - LHR

1 stop37h 45mHainan Airlines

Deal found 31/12£177

Tue 20/119:10BKK - LHR

1 stop28h 10mHainan Airlines

Deal found 31/12£179

Sun 5/411:05BKK - LHR

1 stop38h 25mHainan Airlines

Deal found 31/12£180

Sun 3/511:05BKK - LHR

1 stop38h 25mHainan Airlines

Deal found 1/1£183

Mon 19/109:25BKK - LHR

1 stop15h 45mEtihad Airways

Deal found 31/12£186

Sun 8/209:25BKK - LHR

1 stop28h 15mEtihad Airways

Deal found 1/1£188

Tue 16/609:30CNX - LHR

1 stop27h 30mEtihad Airways

Deal found 31/12£188

Thu 29/115:35CNX - LHR

1 stop32h 55mChina Eastern

Deal found 2/1£188

Mon 11/515:05BKK - LHR

1 stop27h 40mEtihad Airways

Deal found 31/12£189

Tue 20/108:50CNX - LHR

1 stop28h 50mEtihad Airways

Deal found 1/1£189

Wed 4/208:55BKK - LHR

1 stop16h 15mEtihad Airways

Deal found 1/1£190

Fri 6/214:40BKK - LHR

1 stop23h 00mEtihad Airways

Deal found 2/1£191

Find flight deals from Thailand to Heathrow

Round-trip from	£455
One-way from	£177
Popular in	January
Cheapest in	November
Average price	£759
Good round-trip deal	£727 or less
Good one-way deal	£381 or less

China Eastern
28/5-31/5
3 total stops
56h 00m total
Thailand to London

Search Deals

Hainan Airlines
15/3
1 total stop
37h 45m total
Thailand to London

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (£10 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in January 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

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

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Wed 18/3

22:20-19:20

1 stop28h 00m

London Heathrow

Fri 3/4

20:20-10:10

1 stop31h 50m

£531

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Sun 15/2

11:15-15:45

1 stop35h 30m

London Heathrow

Sun 22/2

21:30-10:00

1 stop29h 30m

£534

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 12/2

20:05-05:55

1 stop16h 50m

London Heathrow

Mon 9/3

20:05-06:45

1 stop27h 40m

£542

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 11/2

09:00-18:25

1 stop16h 25m

London Heathrow

Sun 8/3

08:25-06:45

1 stop15h 20m

£542

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 28/5

09:00-19:10

1 stop16h 10m

London Heathrow

Thu 18/6

20:50-06:50

1 stop28h 00m

£554

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 15/2

08:50-06:40

1 stop28h 50m

London Heathrow

Sun 22/2

20:55-06:10

1 stop26h 15m

£557

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 15/2

08:50-18:10

1 stop16h 20m

London Heathrow

Sun 22/2

20:05-21:50

2 stops18h 45m

£580

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/2

15:35-17:30

1 stop32h 55m

London Heathrow

Mon 9/2

20:05-21:50

2 stops18h 45m

£583

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 14/2

20:05-18:25

1 stop29h 20m

London Heathrow

Sat 21/2

20:05-06:45

1 stop27h 40m

£583

KrabiLondon

KBV - LHR

KBVLHR

Krabi

Wed 18/3

11:15-19:30

1 stop39h 15m

London Heathrow

Fri 3/4

15:35-16:10

2 stops42h 35m

£586

Flights are sorted by cheapest return flights first.

Deals found on 2/1

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, March is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £303). Flying from Thailand to London Heathrow Airport in January is currently the most expensive (average of £602). 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 fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 20% versus a flight at midday.

What is the cheapest day to fly from Thailand to London Heathrow Airport?

Travellers seeking maximum savings on their Thailand to London Heathrow Airport flight should consider departing on Wednesday at midday when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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).

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 89 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 Saturday 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 9% of flights being delayed.

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

1,306 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

EVA Air

8.4

Very Good

1,306 reviews

EVA Air

8.4

Very Good

1,306 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Emirates

8.1

Very Good

3,449 reviews

EVA Air

8.4

Very Good

1,306 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Thai Airways

7.8

Good

371 reviews

EVA Air

8.4

Very Good

1,306 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Qatar Airways

7.4

Good

3,698 reviews

EVA Air

8.4

Very Good

1,306 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Etihad Airways

7.3

Good

1,349 reviews

EVA Air

8.4

Very Good

1,306 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Related info for your journey

How long is the flight from Thailand to London Heathrow Airport?
For as low as £542, IndiGo can have you in London Heathrow Airport from Thailand in 16h 50m. 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 Scandinavian Airlines, with whom users have recently found tickets for as low as £133. However, be on the lookout for offers from Oman Air and Etihad Airways, 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 Chiang Mai - 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 (97%), Thai Airways (92%) or EVA Air (89%) 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 £828 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £333 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £442.
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, March is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £303). Flying from Thailand to London Heathrow Airport in January is currently the most expensive (average of £602). 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

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Slough

Northampton

Hounslow

Gatwick

Ilford

Wembley

Hayes

Brentford

Colchester

Watford

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Romford

Eastbourne

Ipswich

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£237	Average£519	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Oman Air	Cheapest£286	Average£641	FlexibilityNo cancel fee	On-time76%	Search Oman Air flights
Air India	Cheapest£362	Average£655	FlexibilityNo cancel fee	On-timeN/A	Search Air India flights
Austrian Airlines	Cheapest£451	Average£669	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
SAUDIA	Cheapest£485	Average£552	FlexibilityNo cancel fee	On-time86%	Search SAUDIA flights
China Eastern	Cheapest£503	Average£593	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Kuwait Airways	Cheapest£510	Average£580	FlexibilityNo cancel fee	On-time64%	Search Kuwait Airways flights
Air China	Cheapest£510	Average£547	FlexibilityNo cancel fee	On-time67%	Search Air China flights
Etihad Airways	Cheapest£540	Average£664	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Turkish Airlines	Cheapest£554	Average£583	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights

Fly with Cheapflights

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 £177

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Thailand to Heathrow

Best flights from Thailand to HeathrowDiscover 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 2 January 2026.

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 2 January 2026.

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 2 January 2026.

Round-trip from

One-way from

Popular in

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Average price

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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 2 January 2026.

What is the cheapest day to fly from Thailand to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from Thailand to Heathrow. Price data was last updated on 27 December 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 2 January 2026.

How often are flights from Thailand to London delayed?

What is the most punctual flight time for Thailand to London flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Thailand to London flights?

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

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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 2 January 2026.