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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
30 Mar — 6 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 25 March 2025.

Round-trip from

£427

One-way from

£285

Popular in

December

Cheapest in

May

Average price

£642

Good round-trip deal

£678 or less

Good one-way deal

£425 or less
7/5-14/5
  • 7/5-14/5
  • 4 total stops
  • 68h 50m total
  • London to Thailand
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22/4
  • 22/4
  • 2 total stops
  • 22h 15m total
  • London to Thailand
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£43 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 March 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 25 March 2025.

Wed 7/510:10LHR - UTH
2 stops27h 40mMultiple Airlines
Wed 14/520:20UTH - LHR
2 stops41h 10mMultiple Airlines
Deal found 23/3£427
Tue 6/521:20LHR - BKK
1 stop21h 20mChina Eastern
Fri 16/502:10BKK - LHR
1 stop22h 30mChina Eastern
Deal found 24/3£452
Mon 16/614:40LHR - BKK
1 stop17h 05mSAUDIA
Fri 4/715:25BKK - LHR
2 stops29h 10mSAUDIA
Deal found 24/3£454
Mon 21/422:05LHR - BKK
1 stop22h 10mShenzhen Airlines
Tue 20/519:30BKK - LHR
1 stop30h 30mShenzhen Airlines
Deal found 24/3£455
Mon 28/422:00LHR - BKK
2 stops30h 00mHainan Airlines
Thu 24/701:30BKK - LHR
2 stops24h 00mHainan Airlines
Deal found 24/3£457
Tue 11/1121:35LHR - BKK
1 stop36h 05mAir China
Mon 1/1201:30BKK - LHR
1 stop23h 20mAir China
Deal found 24/3£459
Tue 27/522:10LHR - BKK
1 stop17h 50mChina Southern
Mon 9/603:00BKK - LHR
2 stops21h 05mChina Southern
Deal found 24/3£462
Sun 18/514:40LHR - DMK
2 stops25h 25mMultiple Airlines
Thu 5/618:20DMK - LHR
2 stops32h 10mMultiple Airlines
Deal found 24/3£493
Tue 22/422:40LHR - HKT
1 stop37h 05mAir China
Mon 19/519:25HKT - LHR
1 stop31h 05mAir China
Deal found 24/3£494
Mon 14/421:20LHR - HKT
2 stops38h 40mChina Eastern
Tue 6/518:55HKT - LHR
2 stops29h 45mChina Eastern
Deal found 24/3£496
Sat 3/510:00LHR - HDY
2 stops25h 40mMultiple Airlines
Sun 18/509:05HDY - LHR
3 stops33h 35mMultiple Airlines
Deal found 24/3£496
Wed 23/410:35LHR - BKK
1 stop38h 40mMultiple Airlines
Wed 30/422:00BKK - LHR
2 stops51h 10mMultiple Airlines
Deal found 24/3£498

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 25 March 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

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 7/5

10:10-19:50

2 stops27h 40m

Udon Thani

Wed 14/5

20:20-07:30

2 stops41h 10m

£427

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 6/5

21:20-00:40

1 stop21h 20m

Bangkok Suvarnabhumi

Fri 16/5

02:10-18:40

1 stop22h 30m

£452

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 15/6

10:00-00:10

2 stops32h 10m

Bangkok Suvarnabhumi

Tue 8/7

15:25-07:30

1 stop22h 05m

£454

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 21/4

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Tue 20/5

19:30-20:00

1 stop30h 30m

£455

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 21/4

22:00-10:00

2 stops30h 00m

Bangkok Suvarnabhumi

Thu 1/5

11:05-19:30

2 stops38h 25m

£461

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 14/4

20:25-00:10

1 stop21h 45m

Bangkok Suvarnabhumi

Wed 14/5

19:35-17:45

1 stop28h 10m

£463

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 15/4

22:10-12:50

1 stop32h 40m

Bangkok Suvarnabhumi

Fri 13/6

20:20-19:00

1 stop28h 40m

£466

LondonBangkok

LHR - DMK

LHRDMK

London Heathrow

Sun 18/5

14:40-22:05

2 stops25h 25m

Bangkok Don Mueang Intl

Thu 5/6

18:20-20:30

2 stops32h 10m

£493

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Tue 22/4

22:40-17:45

1 stop37h 05m

Phuket City

Mon 19/5

19:25-20:30

1 stop31h 05m

£494

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Mon 14/4

21:20-18:00

2 stops38h 40m

Phuket City

Tue 6/5

18:55-18:40

2 stops29h 45m

£496

Flights are sorted by cheapest return flights first.

Deals found on 24/3

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 £781). 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 25 March 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.

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 25 March 2025.
Peruse reviews from past customers who have flown with EVA Air, Singapore Airlines and Emirates 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
1,170 reviews
Check prices

Food

8.0

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

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
1,170 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.0

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

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.
Singapore Airlines
8.1
Very Good
1,284 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.0

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

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.
Emirates
8.0
Very Good
3,190 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.0

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

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.
Hainan Airlines
7.8
Good
32 reviews
EVA Air
8.4
Very Good
1,170 reviews
Check prices

Food

8.0

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

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 India. According to our data, you can fly for as low as £297. Users have also found prices from £298 and £300 on Air China and SAUDIA, 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 Air Canada (71%), Thai Airways (67%) and EVA Air (62%).

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

    On average you can expect to pay £2,722 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £360 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £303.

  • 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 £781). 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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Gatwick to Kuala Lumpur Intl flights
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Heathrow to Hyderabad flights
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Gatwick to Denpasar flights
Heathrow to Hongqiao Intl flights
Heathrow to Gimpo Intl flights
London City to Kuala Lumpur Intl flights
London City to Denpasar flights
Stansted to New Delhi flights
Heathrow to Don Mueang Intl flights
Stansted to Denpasar flights
Stansted to Islamabad flights
Gatwick to Lahore flights
Gatwick to Hong Kong flights
London City to Hong Kong flights
Stansted to Hong Kong flights
Gatwick to Colombo flights
Gatwick to New Delhi flights
Stansted to Lahore flights
London City to New Delhi flights
Heathrow to Phuket City flights
Stansted to Colombo 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest£387Average£736FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Shenzhen AirlinesCheapest£390Average£435FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Hainan AirlinesCheapest£413Average£469FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
SAUDIACheapest£486Average£612FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Royal Brunei AirlinesCheapest£486Average£672FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Air FranceCheapest£493Average£731FlexibilityNo cancel feeOn-time77%
Search Air France flights
SWISSCheapest£502Average£765FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£505Average£728FlexibilityNo cancel feeOn-time75%
Search KLM flights
Norse Atlantic UKCheapest£505Average£587FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Kuwait AirwaysCheapest£526Average£640FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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