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Cheap flights from London Heathrow Airport to Thailand from £278

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
9 Jun — 16 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 4 June 2025.

Round-trip from

£410

One-way from

£278

Popular in

December

Cheapest in

May

Average price

£572

Good round-trip deal

£652 or less

Good one-way deal

£377 or less
Hainan Airlines
  • Hainan Airlines
  • 8/9-2/10
  • 2 total stops
  • 60h 10m total
  • London to Thailand
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Hainan Airlines
  • Hainan Airlines
  • 24/9
  • 1 total stop
  • 20h 20m total
  • London to Thailand
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£40 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
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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 4 June 2025.

Mon 8/922:00LHR - BKK
1 stop30h 00mHainan Airlines
Thu 2/1019:20BKK - LHR
1 stop30h 10mHainan Airlines
Deal found 2/6£410
Mon 1/1222:00LHR - BKK
1 stop29h 10mChina Southern
Mon 22/1220:20BKK - LHR
1 stop28h 55mChina Southern
Deal found 2/6£411
Sat 8/1121:10LHR - BKK
1 stop31h 00mShenzhen Airlines
Fri 28/1103:05BKK - LHR
1 stop23h 05mShenzhen Airlines
Deal found 2/6£418
Tue 17/621:20LHR - BKK
3 stops33h 35mChina Eastern
Thu 19/621:55BKK - LHR
1 stop26h 45mChina Eastern
Deal found 2/6£422
Sat 14/622:40LHR - BKK
1 stop19h 30mAir China
Sat 28/619:35BKK - LHR
1 stop28h 10mAir China
Deal found 2/6£427
Sat 20/920:05LHR - BKK
1 stop31h 40mSWISS
Thu 13/1113:10BKK - LHR
1 stop34h 10mSWISS
Deal found 2/6£468
Tue 23/920:25LHR - BKK
1 stop35h 45mLufthansa
Sun 26/1023:30BKK - LHR
1 stop23h 20mLufthansa
Deal found 2/6£475
Mon 9/612:30LHR - BKK
1 stop19h 05mAir India
Mon 4/820:50BKK - LHR
1 stop19h 25mAir India
Deal found 2/6£478
Fri 13/622:00LHR - BKK
2 stops30h 00mMultiple Airlines
Thu 26/603:15BKK - LHR
1 stop22h 45mMultiple Airlines
Deal found 3/6£489
Mon 17/1117:40LHR - HKT
2 stops60h 10mAir China
Mon 8/1214:00HKT - LHR
1 stop36h 40mAir China
Deal found 2/6£498
Wed 11/619:30LHR - BKK
1 stop13h 20mAustrian Airlines
Wed 18/623:25BKK - LHR
1 stop15h 20mAustrian Airlines
Deal found 2/6£498
Thu 19/621:45LHR - HKT
1 stop14h 40mEtihad Airways
Thu 3/709:10HKT - LHR
1 stop36h 05mEtihad Airways
Deal found 2/6£502

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 4 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

Mon 8/9

22:00-10:00

1 stop30h 00m

Bangkok Suvarnabhumi

Thu 2/10

19:20-19:30

1 stop30h 10m

£410

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 8/11

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Fri 28/11

19:30-19:10

1 stop30h 40m

£418

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 17/6

21:20-12:55

3 stops33h 35m

Bangkok Suvarnabhumi

Thu 19/6

21:55-18:40

1 stop26h 45m

£422

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 1/9

22:10-22:00

1 stop17h 50m

Bangkok Suvarnabhumi

Wed 5/11

02:10-18:15

1 stop23h 05m

£424

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 14/6

22:40-00:10

1 stop19h 30m

Bangkok Suvarnabhumi

Sat 28/6

19:35-17:45

1 stop28h 10m

£427

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 20/9

20:05-09:45

1 stop31h 40m

Bangkok Suvarnabhumi

Thu 13/11

13:10-16:20

1 stop34h 10m

£468

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 23/9

20:25-14:10

1 stop35h 45m

Bangkok Suvarnabhumi

Sun 26/10

23:30-15:50

1 stop23h 20m

£475

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 18/9

13:15-13:35

1 stop18h 20m

Bangkok Suvarnabhumi

Sat 4/10

20:50-10:15

1 stop19h 25m

£479

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 31/8

17:50-14:10

1 stop14h 20m

Bangkok Suvarnabhumi

Tue 16/9

12:35-07:55

1 stop25h 20m

£487

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Mon 17/11

17:40-12:50

2 stops60h 10m

Phuket City

Mon 8/12

14:00-19:40

1 stop36h 40m

£498

Flights are sorted by cheapest return flights first.

Deals found on 2/6

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 £719). 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 4 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 4 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 4 June 2025.
Peruse reviews from past customers who have flown with EVA Air, China Airlines and Hainan 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
1,200 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Comfort

8.3

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
1,200 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Comfort

8.3

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
China Airlines
8.3
Very Good
735 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Comfort

8.3

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
1,200 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Comfort

8.3

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
1,299 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Entertainment

8.0

Food

8.1

Boarding

8.4

Overall

8.4

Crew

8.6

Comfort

8.3

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 £278. Users have also found prices from £291 and £314 on China Southern and Gulf Air, 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 £352 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £397.

  • 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 £719). 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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London City to Manila flights
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Stansted to Kuala Lumpur Intl flights
Gatwick to New Delhi flights
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London City to Kuala Lumpur Intl flights
Gatwick to Hong Kong flights
Heathrow to Hyderabad flights
Heathrow to Lahore flights
Stansted to Mumbai flights
Stansted to New Delhi flights
Heathrow to Chennai flights
London City to Hong Kong flights
Stansted to Hong Kong flights
Heathrow to Islamabad flights
Gatwick to Mumbai flights
Heathrow to Kathmandu 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 4 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£107Average£143FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
SAUDIACheapest£336Average£593FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Shenzhen AirlinesCheapest£364Average£412FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Hainan AirlinesCheapest£376Average£436FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£465Average£540FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Air FranceCheapest£482Average£726FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£482Average£674FlexibilityNo cancel feeOn-time75%
Search KLM flights
Norse Atlantic UKCheapest£483Average£562FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Turkish AirlinesCheapest£507Average£692FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Royal JordanianCheapest£515Average£699FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian 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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