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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 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£417

One-way from

£285

Popular in

December

Cheapest in

May

Average price

£563

Good round-trip deal

£650 or less

Good one-way deal

£374 or less
Shenzhen Airlines
  • Shenzhen Airlines
  • 31/8-7/9
  • 2 total stops
  • 53h 40m total
  • London to Thailand
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Hainan Airlines
  • Hainan Airlines
  • 20/6
  • 2 total stops
  • 38h 15m total
  • London to Thailand
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£42 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 June 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Thailand.
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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 13 June 2025.

Sun 31/822:05LHR - BKK
1 stop31h 05mShenzhen Airlines
Sun 7/903:15BKK - LHR
1 stop22h 35mShenzhen Airlines
Deal found 11/6£417
Wed 25/622:10LHR - BKK
1 stop31h 30mChina Southern
Wed 2/713:45BKK - LHR
1 stop35h 15mChina Southern
Deal found 12/6£421
Wed 25/622:00LHR - BKK
1 stop20h 20mHainan Airlines
Tue 5/801:30BKK - LHR
1 stop24h 00mHainan Airlines
Deal found 11/6£422
Thu 12/622:40LHR - BKK
1 stop19h 30mAir China
Thu 26/619:35BKK - LHR
1 stop30h 55mAir China
Deal found 11/6£428
Mon 1/921:20LHR - BKK
1 stop21h 20mChina Eastern
Sat 29/1101:55BKK - LHR
1 stop22h 35mChina Eastern
Deal found 12/6£434
Mon 16/622:00LHR - BKK
2 stops30h 00mMultiple Airlines
Fri 20/603:15BKK - LHR
1 stop22h 35mMultiple Airlines
Deal found 11/6£495
Tue 24/606:00LHR - BKK
1 stop21h 45mSWISS
Tue 22/712:50BKK - LHR
1 stop14h 55mSWISS
Deal found 11/6£497
Tue 24/619:30LHR - BKK
1 stop13h 20mAustrian Airlines
Sun 13/723:40BKK - LHR
1 stop25h 00mAustrian Airlines
Deal found 12/6£498
Fri 13/612:30LHR - BKK
1 stop25h 05mAir India
Sun 29/620:50BKK - LHR
1 stop19h 25mAir India
Deal found 11/6£501
Mon 1/922:10LHR - HKT
1 stop35h 30mMultiple Airlines
Mon 8/920:50HKT - LHR
1 stop28h 20mMultiple Airlines
Deal found 10/6£505
Thu 30/1021:35LHR - HKT
1 stop32h 15mAir China
Tue 11/1114:00HKT - LHR
2 stops56h 55mAir China
Deal found 12/6£506
Mon 23/609:45LHR - HKT
1 stop27h 45mAir India
Thu 26/609:05HKT - LHR
1 stop16h 55mAir India
Deal found 11/6£509

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 13 June 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 31/8

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Sun 7/9

03:15-19:50

1 stop22h 35m

£417

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 25/6

22:10-11:40

1 stop31h 30m

Bangkok Suvarnabhumi

Wed 2/7

13:45-19:00

1 stop35h 15m

£421

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 25/6

22:00-00:20

1 stop20h 20m

Bangkok Suvarnabhumi

Tue 5/8

01:30-19:30

1 stop24h 00m

£422

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 1/9

21:20-00:40

1 stop21h 20m

Bangkok Suvarnabhumi

Sat 29/11

01:55-17:30

1 stop22h 35m

£434

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 5/11

17:40-18:05

1 stop17h 25m

Bangkok Suvarnabhumi

Wed 10/12

19:30-15:55

1 stop27h 25m

£446

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 24/6

19:30-14:50

1 stop13h 20m

Bangkok Suvarnabhumi

Tue 8/7

12:50-07:55

1 stop25h 05m

£479

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 18/9

21:05-19:35

1 stop16h 30m

Bangkok Suvarnabhumi

Wed 24/9

14:45-11:30

1 stop26h 45m

£495

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 24/6

06:00-09:45

1 stop21h 45m

Bangkok Suvarnabhumi

Tue 22/7

12:50-21:45

1 stop14h 55m

£497

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 24/6

19:30-14:50

1 stop13h 20m

Bangkok Suvarnabhumi

Sun 13/7

23:40-18:40

1 stop25h 00m

£498

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Mon 1/9

22:10-15:40

1 stop35h 30m

Phuket City

Mon 8/9

20:50-19:10

1 stop28h 20m

£505

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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 £718). 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 13 June 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 13 June 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 13 June 2025.
Peruse reviews from past customers who have flown with EVA Air, Hainan Airlines and Singapore 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
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,202 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Hainan Airlines
8.1
Very Good
39 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Singapore Airlines
8.1
Very Good
1,302 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very Good
3,265 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 Hainan Airlines. According to our data, you can fly for as low as £285. Users have also found prices from £291 and £314 on China Southern and Royal Jordanian, 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 Thai Airways (62%), EVA Air (59%) and Air Canada (57%).

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

    On average you can expect to pay £2,830 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £349 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £237.

  • 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 £718). 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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Heathrow to Lahore flights
Gatwick to Hong Kong flights
Heathrow to Phuket City flights
Gatwick to Mumbai flights
Gatwick to Taiwan Taoyuan Intl flights
Heathrow to Ahmedabad flights
Heathrow to Ho Chi Minh 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£107Average£143FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
SAUDIACheapest£334Average£592FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Shenzhen AirlinesCheapest£363Average£409FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Hainan AirlinesCheapest£374Average£433FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£463Average£537FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Air FranceCheapest£480Average£706FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£480Average£668FlexibilityNo cancel feeOn-time75%
Search KLM flights
Norse Atlantic UKCheapest£480Average£559FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
SWISSCheapest£481Average£754FlexibilityNo cancel feeOn-time79%
Search SWISS flights
LufthansaCheapest£490Average£856FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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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