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

Departing from London Heathrow Airport to Thailand will take you 17h 55m. The distance from London Heathrow Airport to Thailand is about 6149 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

For one-way options, check prices for Air China. According to our data, you can fly for as low as £311. Users have also found prices from £322 and £328 on Air India and Etihad Airways, respectively.

In terms of precipitation, rainfall in Thailand ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Thailand when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Thailand, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

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

Most travelers choose London Heathrow - Bangkok Suvarnabhumi, London Heathrow - Bangkok Don Mueang Intl or London Heathrow - Phuket City when deciding on the best route from London Heathrow Airport to Thailand.

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

On average you can expect to pay £2,643 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £436 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £330.

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

The top 3 most reliable airlines when flying from London Heathrow Airport to Thailand are EVA Air (78%), Thai Airways (76%) and Air Canada (69%).

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

When booking a flight from London Heathrow Airport to Thailand, you may want to consider flying on Sichuan Airlines, A.P.G. or Air France as they are the most popular for this route.

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

Yes. In addition to deals on Heathrow to Thailand flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to Thailand?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Thailand.

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

Yes. Cheapflights offers flight deals from Heathrow to Thailand by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£246+ Cheap Flights from London Heathrow Airport to Thailand

Cheap flight deals from Heathrow to Thailand

Round-trip from	£428
One-way from	£283
Popular in	December
Cheapest in	May
Average price	£538
Good round-trip deal	£660 or less
Good one-way deal	£481 or less

Shenzhen Airlines
31/10-6/11
2 total stops
61h 15m total
London to Thailand

Search Deals

22/9
2 total stops
36h 45m total
London to Thailand

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (£44 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 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 London Heathrow to Thailand.

Search Deals

Price to beat on a one-way flight from London Heathrow to Thailand.

Search Deals

Find flight deals from Heathrow to Thailand

Cheapest flights from Heathrow to Thailand
Explore the most affordable flight options available from Heathrow to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 31/1021:10LHR - BKK

1 stop31h 00mShenzhen Airlines

Fri 7/1119:30BKK - LHR

1 stop30h 40mShenzhen Airlines

Deal found 16/9£428

Wed 17/921:05LHR - BKK

1 stop16h 30mAir India

Wed 1/1014:45BKK - LHR

1 stop26h 45mAir India

Deal found 16/9£429

Thu 18/921:05LHR - BKK

1 stop16h 30mAir India

Thu 25/908:40BKK - LHR

1 stop17h 20mAir India

Deal found 16/9£429

Tue 23/909:45LHR - BKK

1 stop25h 10mAir India

Tue 14/1014:45BKK - LHR

1 stop25h 30mAir India

Deal found 17/9£430

Fri 7/1121:00LHR - BKK

2 stops38h 05mHainan Airlines

Thu 20/1101:35BKK - LHR

2 stops23h 00mHainan Airlines

Deal found 16/9£431

Sat 15/1121:35LHR - BKK

1 stop31h 55mAir China

Tue 25/1101:30BKK - LHR

1 stop21h 25mAir China

Deal found 15/9£432

Mon 24/1120:25LHR - BKK

1 stop20h 45mAir China

Sun 30/1119:30BKK - LHR

1 stop29h 20mAir China

Deal found 16/9£432

Wed 5/1113:30LHR - BKK

1 stop23h 05mAir India

Wed 19/1120:50BKK - LHR

1 stop21h 15mAir India

Deal found 17/9£433

Wed 5/1117:40LHR - BKK

1 stop17h 25mAir China

Tue 13/101:30BKK - LHR

1 stop21h 25mAir China

Deal found 16/9£434

Tue 4/1113:30LHR - BKK

1 stop17h 05mAir India

Mon 10/1120:50BKK - LHR

1 stop29h 05mAir India

Deal found 17/9£434

Fri 5/1221:10LHR - BKK

1 stop31h 00mShenzhen Airlines

Sat 20/1219:30BKK - LHR

1 stop30h 40mShenzhen Airlines

Deal found 16/9£435

Sun 26/1020:25LHR - BKK

1 stop20h 45mAir China

Sun 23/1101:30BKK - LHR

1 stop21h 25mAir China

Deal found 16/9£436

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

Sun 2/1121:10LHR - BKK

1 stop31h 00mShenzhen Airlines

Tue 18/1119:30BKK - LHR

1 stop30h 40mShenzhen Airlines

Deal found 17/9£445

Thu 8/120:25LHR - HKT

1 stop17h 55mAir China

Mon 19/118:25HKT - LHR

1 stop30h 25mAir China

Deal found 17/9£475

Mon 29/922:00LHR - BKK

2 stops38h 15mHainan Airlines

Thu 9/1019:20BKK - LHR

2 stops30h 10mHainan Airlines

Deal found 17/9£480

Mon 29/914:45LHR - BKK

1 stop27h 10mEtihad Airways

Wed 22/1002:55BKK - LHR

1 stop18h 20mEtihad Airways

Deal found 16/9£506

Mon 10/1122:00LHR - HKT

2 stops26h 30mMultiple Airlines

Thu 20/1121:15HKT - LHR

1 stop20h 50mMultiple Airlines

Deal found 17/9£548

Sat 11/1018:55LHR - BKK

1 stop18h 25mQatar Airways

Wed 22/1008:40BKK - LHR

1 stop15h 20mQatar Airways

Deal found 17/9£549

Fri 21/1121:30LHR - HKT

2 stops35h 55mChina Southern

Wed 3/1217:25HKT - LHR

1 stop32h 10mChina Southern

Deal found 17/9£550

Tue 3/321:00LHR - CNX

1 stop34h 20mChina Eastern

Sat 7/315:35CNX - LHR

1 stop32h 55mChina Eastern

Deal found 15/9£556

Sun 8/310:25LHR - KBV

1 stop18h 35mMalaysia Airlines

Mon 16/313:00KBV - LHR

1 stop33h 25mMalaysia Airlines

Deal found 16/9£595

Sat 22/1118:40LHR - KBV

2 stops43h 35mSWISS

Wed 3/1209:50KBV - LHR

2 stops37h 30mSWISS

Deal found 18/9£672

Thu 12/211:50LHR - CEI

1 stop23h 30mThai Airways

Tue 10/314:25CEI - LHR

1 stop36h 10mThai Airways

Deal found 16/9£777

Tue 28/1010:40LHR - USM

1 stop25h 10mSingapore Airlines

Wed 26/1118:05USM - LHR

1 stop18h 50mSingapore Airlines

Deal found 16/9£789

Sat 1/1121:50LHR - KBV

2 stops40h 25mGulf Air

Sat 15/1109:50KBV - LHR

2 stops27h 45mGulf Air

Deal found 17/9£791

Sun 23/1122:00LHR - CNX

2 stops30h 20mEmirates

Wed 26/1110:10CNX - LHR

2 stops34h 40mEmirates

Deal found 16/9£803

Sat 25/1022:05LHR - BKK

1 stop31h 05mShenzhen Airlines

Tue 18/1119:30BKK - LHR

1 stop30h 40mShenzhen Airlines

Deal found 17/9£445

Sun 15/306:35LHR - UTH

2 stops24h 05mTurkish Airlines

Thu 19/320:50UTH - LHR

2 stops49h 05mTurkish Airlines

Deal found 15/9£943

Tue 4/1117:40LHR - BKK

1 stop17h 25mAir China

Mon 24/1101:30BKK - LHR

1 stop21h 25mAir China

Deal found 17/9£475

Tue 20/120:55LHR - BKK

1 stop19h 25mEtihad Airways

Mon 26/102:55BKK - LHR

1 stop18h 35mEtihad Airways

Deal found 17/9£520

Tue 20/121:30LHR - BKK

2 stops29h 40mChina Southern

Mon 26/102:10BKK - LHR

1 stop23h 25mChina Southern

Deal found 17/9£552

Fri 9/117:40LHR - HKT

1 stop20h 40mAir China

Tue 20/118:25HKT - LHR

1 stop28h 30mAir China

Deal found 17/9£514

Mon 10/1121:00LHR - HKT

1 stop18h 45mChina Eastern

Wed 19/1100:20HKT - LHR

1 stop24h 10mChina Eastern

Deal found 17/9£569

Fri 9/119:20LHR - HKT

1 stop16h 35mQatar Airways

Mon 19/100:50HKT - LHR

1 stop18h 20mQatar Airways

Deal found 17/9£572

Sun 22/207:40LHR - CEI

2 stops27h 40mMultiple Airlines

Mon 23/310:15CEI - LHR

2 stops18h 25mMultiple Airlines

Deal found 17/9£586

Mon 27/1013:55LHR - BKK

2 stops26h 35mEtihad Airways

Sun 23/1102:55BKK - LHR

1 stop16h 10mEtihad Airways

Deal found 16/9£536

Sat 22/1121:25LHR - KBV

1 stop31h 35mMalaysia Airlines

Wed 3/1213:00KBV - LHR

1 stop23h 35mMalaysia Airlines

Deal found 17/9£595

Fri 21/1121:10LHR - BKK

1 stop22h 05mShenzhen Airlines

Tue 30/1203:15BKK - LHR

1 stop22h 55mShenzhen Airlines

Deal found 17/9£574

Thu 30/1008:40LHR - HKT

1 stop14h 10mQatar Airways

Sun 9/1100:50HKT - LHR

1 stop36h 25mQatar Airways

Deal found 16/9£577

Sat 1/1121:05LHR - KBV

1 stop16h 40mMultiple Airlines

Sat 8/1120:45KBV - LHR

2 stops30h 10mMultiple Airlines

Deal found 17/9£588

Fri 6/321:25LHR - KBV

1 stop31h 35mMalaysia Airlines

Fri 20/313:00KBV - LHR

1 stop33h 25mMalaysia Airlines

Deal found 17/9£595

Thu 12/213:55LHR - BKK

1 stop26h 25mEtihad Airways

Wed 11/302:55BKK - LHR

1 stop18h 35mEtihad Airways

Deal found 17/9£544

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

Fri 28/1121:20LHR - BKK

Nonstop11h 40mEVA Air

Fri 12/1212:40BKK - LHR

Nonstop13h 25mEVA Air

Deal found 17/9£651

Tue 23/921:25LHR - BKK

Nonstop11h 35mThai Airways

Mon 13/1000:30BKK - LHR

Nonstop12h 45mThai Airways

Deal found 16/9£676

Thu 25/912:30LHR - BKK

Nonstop11h 30mThai Airways

Sun 5/1000:30BKK - LHR

Nonstop12h 45mThai Airways

Deal found 17/9£677

Wed 8/1021:35LHR - BKK

Nonstop11h 55mEVA Air

Sun 19/1012:20BKK - LHR

Nonstop13h 00mEVA Air

Deal found 16/9£678

Tue 23/921:35LHR - BKK

Nonstop11h 55mEVA Air

Sat 4/1012:20BKK - LHR

Nonstop13h 00mEVA Air

Deal found 16/9£679

Tue 25/1121:20LHR - BKK

Nonstop11h 40mEVA Air

Fri 5/1212:40BKK - LHR

Nonstop13h 25mEVA Air

Deal found 16/9£680

Tue 23/921:35LHR - BKK

Nonstop11h 55mEVA Air

Mon 29/912:45BKK - LHR

Nonstop12h 35mEVA Air

Deal found 17/9£681

Thu 2/1021:35LHR - BKK

Nonstop11h 55mEVA Air

Sun 12/1012:20BKK - LHR

Nonstop13h 00mEVA Air

Deal found 17/9£684

Tue 2/1221:20LHR - BKK

Nonstop11h 40mEVA Air

Sat 13/1212:40BKK - LHR

Nonstop13h 25mEVA Air

Deal found 16/9£684

Sun 16/1121:20LHR - BKK

Nonstop11h 40mEVA Air

Sun 30/1112:40BKK - LHR

Nonstop13h 25mEVA Air

Deal found 17/9£685

Thu 25/912:30LHR - BKK

Nonstop11h 30mThai Airways

Sun 5/1012:35BKK - LHR

Nonstop12h 40mThai Airways

Deal found 17/9£686

Sat 20/921:25LHR - BKK

Nonstop11h 35mThai Airways

Tue 14/1012:35BKK - LHR

Nonstop12h 40mThai Airways

Deal found 17/9£687

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

Mon 22/922:40LHR - BKK

1 stop37h 30mAir China

Sat 4/1019:35BKK - LHR

1 stop30h 55mAir China

Deal found 16/9£432

Mon 22/912:30LHR - BKK

1 stop19h 05mAir India

Mon 29/920:50BKK - LHR

1 stop19h 25mAir India

Deal found 17/9£433

Mon 22/912:30LHR - BKK

1 stop19h 05mAir India

Thu 25/908:40BKK - LHR

1 stop17h 20mAir India

Deal found 17/9£436

Mon 22/922:05LHR - BKK

1 stop22h 10mShenzhen Airlines

Thu 2/1003:15BKK - LHR

1 stop22h 45mShenzhen Airlines

Deal found 16/9£437

Mon 22/921:20LHR - BKK

1 stop18h 35mChina Eastern

Wed 15/1005:05BKK - LHR

1 stop19h 35mChina Eastern

Deal found 16/9£439

Mon 22/920:35LHR - BKK

1 stop17h 50mAir India

Fri 3/1020:50BKK - LHR

1 stop19h 25mAir India

Deal found 16/9£440

Tue 23/912:30LHR - BKK

1 stop19h 05mAir India

Tue 30/914:45BKK - LHR

1 stop25h 30mAir India

Deal found 17/9£428

Tue 23/909:45LHR - BKK

1 stop25h 10mAir India

Tue 14/1014:45BKK - LHR

1 stop25h 30mAir India

Deal found 17/9£430

Tue 23/922:00LHR - BKK

1 stop37h 05mAir China

Tue 14/1019:35BKK - LHR

1 stop28h 10mAir China

Deal found 17/9£435

Tue 23/921:20LHR - BKK

3 stops33h 35mChina Eastern

Sun 12/1009:50BKK - LHR

1 stop38h 50mChina Eastern

Deal found 16/9£441

Wed 24/921:20LHR - BKK

1 stop18h 35mChina Eastern

Thu 2/1005:05BKK - LHR

1 stop19h 35mChina Eastern

Deal found 17/9£440

Fri 26/922:05LHR - BKK

1 stop22h 10mShenzhen Airlines

Sat 25/1019:30BKK - LHR

1 stop30h 40mShenzhen Airlines

Deal found 17/9£438

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

Mon 22/922:05LHR - CNX

2 stops36h 45mMultiple Airlines

Deal found 17/9£283

Sun 12/1011:20LHR - BKK

2 stops29h 20mMultiple Airlines

Deal found 16/9£292

Fri 14/1121:00LHR - BKK

2 stops30h 05mHainan Airlines

Deal found 16/9£293

Mon 29/916:40LHR - BKK

2 stops48h 00mMultiple Airlines

Deal found 16/9£295

Fri 3/1006:30LHR - BKK

3 stops34h 10mMultiple Airlines

Deal found 17/9£295

Mon 1/1211:25LHR - DMK

2 stops55h 45mMultiple Airlines

Deal found 17/9£295

Wed 24/922:00LHR - BKK

1 stop30h 00mHainan Airlines

Deal found 16/9£296

Wed 1/1022:00LHR - BKK

1 stop30h 00mHainan Airlines

Deal found 16/9£297

Sat 11/1006:30LHR - BKK

3 stops34h 10mMultiple Airlines

Deal found 17/9£299

Wed 24/906:30LHR - DMK

3 stops59h 10mMultiple Airlines

Deal found 17/9£299

Tue 11/1122:00LHR - BKK

1 stop33h 30mChina Southern

Deal found 16/9£300

Thu 25/906:30LHR - DMK

3 stops36h 45mMultiple Airlines

Deal found 16/9£300

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 2/11

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Tue 18/11

19:30-19:10

1 stop30h 40m

£445

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 25/10

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Tue 18/11

19:30-19:10

1 stop30h 40m

£445

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Thu 8/1

20:25-21:20

1 stop17h 55m

Phuket City

Mon 19/1

18:25-17:50

1 stop30h 25m

£475

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 4/11

17:40-18:05

1 stop17h 25m

Bangkok Suvarnabhumi

Mon 24/11

01:30-15:55

1 stop21h 25m

£475

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 29/9

22:00-18:15

2 stops38h 15m

Bangkok Suvarnabhumi

Thu 9/10

19:20-19:30

2 stops30h 10m

£480

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 29/9

14:45-23:55

1 stop27h 10m

Bangkok Suvarnabhumi

Wed 22/10

02:55-15:15

1 stop18h 20m

£506

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Fri 9/1

17:40-21:20

1 stop20h 40m

Phuket City

Tue 20/1

18:25-15:55

1 stop28h 30m

£514

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 20/1

20:55-23:20

1 stop19h 25m

Bangkok Suvarnabhumi

Mon 26/1

02:55-14:30

1 stop18h 35m

£520

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 27/10

13:55-23:30

2 stops26h 35m

Bangkok Suvarnabhumi

Sun 23/11

02:55-12:05

1 stop16h 10m

£536

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 12/2

13:55-23:20

1 stop26h 25m

Bangkok Suvarnabhumi

Wed 11/3

02:55-14:30

1 stop18h 35m

£544

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 60 results

...

Best time to book a flight from Heathrow to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand from Heathrow 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 London Heathrow Airport to Thailand

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

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Thailand (average of £717). Flying from London Heathrow Airport to Thailand in December is currently the most expensive (average of £1,123). 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 LHR to TH?

When flying from London Heathrow Airport to Thailand, 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 London Heathrow Airport to Thailand

The most flights from LHR to TH0 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).

Reviews of airlines servicing Thailand

Check out reviews from past customers who have flown with EVA Air, Thai Airways, andQatar Airways from London Heathrow Airport to Thailand 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

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

Air China

7.3

Good

101 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 London Heathrow Airport to Thailand?
Departing from London Heathrow Airport to Thailand will take you 17h 55m. The distance from London Heathrow Airport to Thailand is about 6149 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from London Heathrow Airport to Thailand one-way?
For one-way options, check prices for Air China. According to our data, you can fly for as low as £311. Users have also found prices from £322 and £328 on Air India and Etihad Airways, respectively.
What are the most popular routes from London Heathrow Airport to Thailand?
Most travelers choose London Heathrow - Bangkok Suvarnabhumi, London Heathrow - Bangkok Don Mueang Intl or London Heathrow - Phuket City when deciding on the best route from London Heathrow Airport to Thailand.
What are the most reliable airlines from London Heathrow Airport to Thailand?
The top 3 most reliable airlines when flying from London Heathrow Airport to Thailand are EVA Air (78%), Thai Airways (76%) and Air Canada (69%).
What are the cheapest flights from London Heathrow Airport to Thailand?
On average you can expect to pay £2,643 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £436 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £330.
Can I find deals for flights from Heathrow to Thailand that include hotel bookings?
Yes. In addition to deals on Heathrow to Thailand flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Thailand?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Thailand.
Can I find deals for business class flights from Heathrow to Thailand?
Yes. Cheapflights offers flight deals from Heathrow to Thailand 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 London Heathrow Airport to Thailand?
Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Thailand (average of £717). Flying from London Heathrow Airport to Thailand in December is currently the most expensive (average of £1,123). 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

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Heathrow to Thailand

Airline	Cheapest	Average	Flexibility	On-time
Bangkok Airways	Cheapest£110	Average£140	FlexibilityNo cancel fee	On-time74%	Search Bangkok Airways flights
SAUDIA	Cheapest£331	Average£598	FlexibilityNo cancel fee	On-time86%	Search SAUDIA flights
Norse Atlantic UK	Cheapest£343	Average£558	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Hainan Airlines	Cheapest£372	Average£426	FlexibilityNo cancel fee	On-time61%	Search Hainan Airlines flights
Royal Brunei Airlines	Cheapest£461	Average£535	FlexibilityNo cancel fee	On-time84%	Search Royal Brunei Airlines flights
Lufthansa	Cheapest£472	Average£774	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
SWISS	Cheapest£478	Average£750	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
KLM	Cheapest£478	Average£727	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	Cheapest£483	Average£797	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Turkish Airlines	Cheapest£499	Average£692	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Thailand, users can toggle the no change fees filter when performing a flight search.

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Cheap flights from London Heathrow Airport to Thailand from £246

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

Cheap flight deals from Heathrow to Thailand

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

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Find flight deals from Heathrow to Thailand

Cheapest flights from Heathrow to ThailandExplore the most affordable flight options available from Heathrow to Thailand. 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 Heathrow to Thailand. 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 London Heathrow Airport to Thailand that are best for you.

Best time to book a flight from Heathrow to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand from Heathrow with our price prediction graph.

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Everything you need to know about your flight from London Heathrow Airport to Thailand

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

What is the cheapest time of day to fly from LHR to TH?

Find hourly flight availability from Heathrow to Thailand. 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 London Heathrow Airport to Thailand

Explore weekly flight availability from Heathrow to Thailand. 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 Thailand

Check out reviews from past customers who have flown with EVA Air, Thai Airways, andQatar Airways from London Heathrow Airport to Thailand 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 Heathrow to Thailand. 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 London Heathrow Airport to Thailand?

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

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

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

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

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

How can I find direct flights from Heathrow to Thailand?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Thailand

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

Top 10 airlines flying from Heathrow to Thailand

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How does Cheapflights help users find flights from Heathrow to Thailand?

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

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

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

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Cheapest flights from Heathrow to Thailand
Explore the most affordable flight options available from Heathrow to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.