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Cheap flights from London Heathrow Airport to Thailand from £285

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
17 Apr — 24 Apr1
1 adult

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 12 April 2025.

Round-trip from

£431

One-way from

£285

Popular in

December

Cheapest in

May

Average price

£710

Good round-trip deal

£666 or less

Good one-way deal

£400 or less
Shenzhen Airlines
  • Shenzhen Airlines
  • 27/4-11/5
  • 2 total stops
  • 52h 30m total
  • London to Thailand
Search Deals
Air China
  • Air China
  • 22/4
  • 2 total stops
  • 24h 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 (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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.
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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 12 April 2025.

Mon 10/1121:10LHR - BKK
1 stop31h 00mShenzhen Airlines
Fri 28/1112:10BKK - LHR
1 stop38h 00mShenzhen Airlines
Deal found 11/4£431
Sat 19/422:10LHR - BKK
1 stop30h 10mChina Southern
Tue 13/508:20BKK - LHR
1 stop16h 40mChina Southern
Deal found 11/4£432
Tue 13/520:25LHR - BKK
2 stops24h 45mAir China
Tue 20/504:10BKK - LHR
2 stops22h 20mAir China
Deal found 11/4£439
Sat 3/521:20LHR - BKK
1 stop17h 35mChina Eastern
Sat 17/521:55BKK - LHR
1 stop26h 45mChina Eastern
Deal found 11/4£444
Thu 15/522:10LHR - BKK
1 stop20h 00mSAUDIA
Thu 10/715:25BKK - LHR
1 stop22h 05mSAUDIA
Deal found 11/4£457
Mon 5/522:00LHR - BKK
2 stops30h 00mHainan Airlines
Sun 1/601:30BKK - LHR
2 stops24h 00mHainan Airlines
Deal found 11/4£458
Sun 4/506:30LHR - DMK
2 stops30h 45mMultiple Airlines
Tue 20/508:35DMK - LHR
3 stops32h 10mMultiple Airlines
Deal found 10/4£467
Fri 27/612:30LHR - BKK
1 stop25h 05mAir India
Thu 10/720:50BKK - LHR
1 stop19h 25mAir India
Deal found 11/4£477
Wed 7/521:20LHR - CNX
2 stops36h 00mChina Eastern
Sat 17/516:20CNX - LHR
2 stops32h 20mChina Eastern
Deal found 11/4£488
Fri 9/522:10LHR - CNX
1 stop37h 40mChina Southern
Sun 18/518:50CNX - LHR
2 stops29h 15mChina Southern
Deal found 11/4£490
Tue 17/621:45LHR - BKK
1 stop20h 10mEtihad Airways
Mon 7/702:55BKK - LHR
1 stop21h 50mEtihad Airways
Deal found 11/4£496
Sat 3/516:35LHR - BKK
2 stops35h 15mMultiple Airlines
Sat 28/619:30BKK - LHR
1 stop30h 30mMultiple Airlines
Deal found 11/4£504

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Thailand 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 858,174 searches. Data last updated 12 April 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Thailand that are best for you.

Fly from

Heathrow

Fly to

Thailand

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 27/4

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Sun 11/5

19:30-19:50

1 stop30h 20m

£431

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 5/5

22:10-14:30

1 stop34h 20m

Bangkok Suvarnabhumi

Fri 23/5

15:05-19:00

1 stop33h 55m

£432

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 13/5

20:25-03:10

2 stops24h 45m

Bangkok Suvarnabhumi

Tue 20/5

04:10-20:30

2 stops22h 20m

£439

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 3/5

21:20-20:55

1 stop17h 35m

Bangkok Suvarnabhumi

Sat 17/5

21:55-18:40

1 stop26h 45m

£444

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 26/4

07:00-10:10

1 stop21h 10m

Bangkok Suvarnabhumi

Sun 11/5

20:15-19:10

2 stops52h 55m

£455

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 15/5

22:10-00:10

1 stop20h 00m

Bangkok Suvarnabhumi

Thu 10/7

15:25-07:30

1 stop22h 05m

£457

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 5/5

22:00-10:00

2 stops30h 00m

Bangkok Suvarnabhumi

Sun 1/6

01:30-19:30

2 stops24h 00m

£458

LondonBangkok

LHR - DMK

LHRDMK

London Heathrow

Sun 4/5

06:30-19:15

2 stops30h 45m

Bangkok Don Mueang Intl

Tue 20/5

08:35-10:45

3 stops32h 10m

£467

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 27/6

12:30-13:35

1 stop19h 05m

Bangkok Suvarnabhumi

Sat 12/7

14:45-10:15

1 stop25h 30m

£477

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 7/5

21:20-15:20

2 stops36h 00m

Chiang Mai

Sat 17/5

16:20-18:40

2 stops32h 20m

£488

Flights are sorted by cheapest return flights first.

Deals found on 11/4

Showing 1-10 of 60 results
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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 £730). 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?

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 12 April 2025.

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

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 12 April 2025.

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).

Rainfall in Thailand by month

Plan your trip to Thailand by taking into account the average rainfall totals by month.

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.

Temperature in Thailand by month

Plan your trip to Thailand by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated 12 April 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air and China Airlines from London to Thailand to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,172 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very Good
1,172 reviews
EVA Air
8.4
Very Good
1,172 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very Good
1,060 reviews
EVA Air
8.4
Very Good
1,172 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Airlines
8.2
Very Good
729 reviews
EVA Air
8.4
Very Good
1,172 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Asiana Airlines
8.2
Very Good
438 reviews
EVA Air
8.4
Very Good
1,172 reviews
Check prices

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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.

  • 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 £285. Users have also found prices from £286 and £289 on China Eastern and China Southern, respectively.

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

    Most travelers choose London Heathrow - Bangkok Suvarnabhumi, London Heathrow - Phuket City or London Heathrow - Bangkok Don Mueang Intl 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 Air Canada (68%), Thai Airways (66%) and EVA Air (62%).

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

    On average you can expect to pay £2,621 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £357 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £407.

  • 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 £730). 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

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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.
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Stansted to Islamabad flights
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London City to Hong Kong flights
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Heathrow to Phuket City flights

Top 10 airlines flying from Heathrow to Thailand

Discover the top 10 airlines that operate flights from Heathrow to Thailand. 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 858,174 searches. Data last updated 12 April 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapest£351Average£605FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Shenzhen AirlinesCheapest£377Average£430FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Qantas AirwaysCheapest£385Average£730FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Hainan AirlinesCheapest£411Average£474FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£481Average£665FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Air FranceCheapest£489Average£725FlexibilityNo cancel feeOn-time77%
Search Air France flights
SWISSCheapest£494Average£752FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£500Average£582FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
KLMCheapest£500Average£707FlexibilityNo cancel feeOn-time75%
Search KLM flights
Turkish AirlinesCheapest£524Average£698FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Thailand. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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 Heathrow to Thailand.

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.

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

Of course! You can now track prices for flights from Heathrow to Thailand and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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