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Cheap flights from London Heathrow Airport to Thailand from £275

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 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
4 May — 11 May1
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 29 April 2025.

Round-trip from

£410

One-way from

£275

Popular in

December

Cheapest in

May

Average price

£689

Good round-trip deal

£646 or less

Good one-way deal

£419 or less
Hainan Airlines
  • Hainan Airlines
  • 13/6-24/6
  • 3 total stops
  • 76h 40m total
  • London to Thailand
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Hainan Airlines
  • Hainan Airlines
  • 26/5
  • 1 total stop
  • 30h 00m 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 April 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 29 April 2025.

Fri 13/622:00LHR - BKK
2 stops38h 15mHainan Airlines
Tue 24/611:05BKK - LHR
1 stop38h 25mHainan Airlines
Deal found 28/4£410
Thu 8/521:20LHR - BKK
1 stop17h 35mChina Eastern
Thu 5/620:50BKK - LHR
2 stops27h 50mChina Eastern
Deal found 29/4£411
Tue 27/522:10LHR - BKK
1 stop31h 30mChina Southern
Thu 19/603:00BKK - LHR
1 stop22h 00mChina Southern
Deal found 28/4£414
Mon 27/1021:10LHR - BKK
1 stop38h 20mShenzhen Airlines
Sun 16/1103:05BKK - LHR
1 stop23h 05mShenzhen Airlines
Deal found 28/4£418
Sat 10/510:00LHR - BKK
1 stop21h 45mSAUDIA
Sun 29/615:25BKK - LHR
1 stop22h 05mSAUDIA
Deal found 29/4£430
Sun 8/612:30LHR - BKK
1 stop19h 05mAir India
Wed 18/620:50BKK - LHR
1 stop28h 40mAir India
Deal found 29/4£439
Thu 22/522:00LHR - BKK
1 stop37h 05mAir China
Sun 8/619:35BKK - LHR
1 stop28h 10mAir China
Deal found 28/4£443
Tue 6/522:15LHR - BKK
2 stops27h 50mMultiple Airlines
Sun 8/603:15BKK - LHR
1 stop22h 35mMultiple Airlines
Deal found 28/4£479
Thu 12/621:00LHR - CNX
2 stops31h 25mChina Southern
Thu 19/618:50CNX - LHR
1 stop30h 10mChina Southern
Deal found 28/4£501
Wed 14/521:20LHR - CNX
2 stops29h 45mChina Eastern
Wed 21/516:20CNX - LHR
2 stops32h 20mChina Eastern
Deal found 28/4£507
Thu 12/621:00LHR - HKT
2 stops36h 40mChina Southern
Thu 19/616:40HKT - LHR
1 stop32h 20mChina Southern
Deal found 27/4£510
Thu 8/522:40LHR - HKT
1 stop37h 05mAir China
Fri 23/514:00HKT - LHR
1 stop36h 15mAir China
Deal found 28/4£512

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 29 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

Fri 13/6

22:00-18:15

2 stops38h 15m

Bangkok Suvarnabhumi

Tue 24/6

11:05-19:30

1 stop38h 25m

£410

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 13/5

21:20-21:55

1 stop18h 35m

Bangkok Suvarnabhumi

Tue 3/6

20:50-18:40

2 stops27h 50m

£411

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 27/5

22:10-11:40

1 stop31h 30m

Bangkok Suvarnabhumi

Thu 19/6

03:00-19:00

1 stop22h 00m

£414

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 24/5

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Sun 8/6

19:30-19:50

1 stop30h 20m

£418

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 10/5

10:00-13:45

1 stop21h 45m

Bangkok Suvarnabhumi

Sun 29/6

15:25-07:30

1 stop22h 05m

£430

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 10/5

22:40-00:10

1 stop19h 30m

Bangkok Suvarnabhumi

Tue 20/5

19:35-20:30

1 stop30h 55m

£437

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 6/6

12:30-13:35

1 stop19h 05m

Bangkok Suvarnabhumi

Wed 11/6

14:45-11:30

1 stop26h 45m

£439

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 19/5

21:20-21:55

1 stop18h 35m

Bangkok Suvarnabhumi

Thu 26/6

05:05-18:40

1 stop19h 35m

£485

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Thu 12/6

21:00-10:25

2 stops31h 25m

Chiang Mai

Thu 19/6

18:50-19:00

1 stop30h 10m

£501

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 14/5

21:20-09:05

2 stops29h 45m

Chiang Mai

Wed 21/5

16:20-18:40

2 stops32h 20m

£507

Flights are sorted by cheapest return flights first.

Deals found on 28/4

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 £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?

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 29 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 29 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 29 April 2025.
Peruse reviews from past customers who have flown with EVA Air, Asiana 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
1,186 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very Good
1,186 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Asiana Airlines
8.2
Very Good
442 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Hainan Airlines
8.1
Very Good
38 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Singapore Airlines
8.1
Very Good
1,292 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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 £275. Users have also found prices from £277 and £281 on Thai Airways and Air China, 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 (69%), Air Canada (68%) and EVA Air (62%).

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

    On average you can expect to pay £2,563 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 £382.

  • 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

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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 Islamabad flights
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Heathrow to Hongqiao Intl flights
Stansted to Denpasar flights
London City to Denpasar flights
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Stansted to Manila flights
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Gatwick to New Delhi flights
London City to Manila flights
Heathrow to Kathmandu flights
Gatwick to Incheon Intl flights
Gatwick to Islamabad flights
London City to Hong Kong flights
Gatwick to Hong Kong flights
London City to Singapore 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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£313Average£569FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
SAUDIACheapest£340Average£596FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Shenzhen AirlinesCheapest£369Average£420FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Hainan AirlinesCheapest£405Average£476FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£471Average£650FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
SWISSCheapest£485Average£745FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air FranceCheapest£485Average£741FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£488Average£691FlexibilityNo cancel feeOn-time75%
Search KLM flights
Kuwait AirwaysCheapest£511Average£627FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Turkish AirlinesCheapest£513Average£681FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

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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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