Cheap flights from London Heathrow Airport to Thailand from £279

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
27 8월 — 3 9월1
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 22 8월 2025.

Round-trip from

£487

One-way from

£279

Popular in

December

Cheapest in

May

Average price

£754

Good round-trip deal

£668 or less

Good one-way deal

£507 or less
19/9-16/11
  • 19/9-16/11
  • 4 total stops
  • 57h 40m total
  • London to Thailand
20/9
  • 20/9
  • 2 total stops
  • 41h 55m total
  • London to Thailand
Highest demand for flights based on searches. 8% potential increase in price (£43 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from London Heathrow to Thailand.
Price to beat on a one-way flight from London Heathrow to Thailand.

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 22 8월 2025.

수 5/1110:00LHR - UTH
2 stops26h 30mMultiple Airlines
토 15/1108:40UTH - LHR
2 stops29h 50mMultiple Airlines
Deal found 22/8£484
금 19/910:00LHR - UTH
2 stops27h 50mMultiple Airlines
일 16/1108:40UTH - LHR
2 stops29h 50mMultiple Airlines
Deal found 20/8£487
월 17/1121:00LHR - BKK
2 stops30h 05mMultiple Airlines
화 2/1213:55BKK - LHR
1 stop35h 20mMultiple Airlines
Deal found 21/8£490
월 10/1122:00LHR - BKK
1 stop17h 30mChina Southern
금 21/1102:10BKK - LHR
1 stop23h 05mChina Southern
Deal found 21/8£491
금 21/1117:40LHR - BKK
2 stops25h 40mAir China
목 4/1219:30BKK - LHR
1 stop27h 25mAir China
Deal found 21/8£492
화 28/1022:00LHR - BKK
1 stop30h 25mChina Southern
수 5/1119:15BKK - LHR
2 stops29h 40mChina Southern
Deal found 21/8£492
일 26/1017:40LHR - BKK
2 stops25h 40mAir China
화 18/1101:30BKK - LHR
1 stop21h 25mAir China
Deal found 21/8£493
목 13/1121:30LHR - BKK
2 stops20h 35mChina Southern
목 27/1118:05BKK - LHR
1 stop31h 10mChina Southern
Deal found 21/8£494
목 9/1014:40LHR - BKK
1 stop17h 05mSAUDIA
화 21/1015:25BKK - LHR
1 stop22h 05mSAUDIA
Deal found 21/8£495
화 4/1121:30LHR - BKK
2 stops20h 35mChina Southern
일 23/1118:55BKK - LHR
1 stop30h 20mChina Southern
Deal found 21/8£495
금 7/1121:30LHR - BKK
2 stops29h 40mChina Southern
월 17/1102:10BKK - LHR
1 stop23h 05mChina Southern
Deal found 21/8£496
일 5/1022:10LHR - BKK
1 stop37h 45mChina Southern
일 12/1011:20BKK - LHR
2 stops36h 45mChina Southern
Deal found 21/8£497

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 22 8월 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

수 5/11

10:00-19:30

2 stops26h 30m

Udon Thani

토 15/11

08:40-07:30

2 stops29h 50m

£484

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

금 19/9

10:00-19:50

2 stops27h 50m

Udon Thani

일 16/11

08:40-07:30

2 stops29h 50m

£487

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

수 19/11

14:50-12:20

1 stop14h 30m

Bangkok Suvarnabhumi

금 5/12

23:30-08:05

1 stop15h 35m

£510

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

토 15/11

21:10-02:15

1 stop22h 05m

Bangkok Suvarnabhumi

토 29/11

03:15-19:10

1 stop22h 55m

£510

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

월 6/10

20:50-17:45

1 stop14h 55m

Bangkok Suvarnabhumi

월 13/10

09:00-19:10

1 stop16h 10m

£511

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

금 5/9

22:05-18:30

1 stop38h 25m

Bangkok Suvarnabhumi

목 18/9

03:15-20:00

1 stop22h 45m

£512

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

일 1/2

20:05-17:45

1 stop14h 40m

Bangkok Suvarnabhumi

금 6/3

20:05-18:25

1 stop29h 20m

£512

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

금 5/12

21:10-02:15

1 stop22h 05m

Bangkok Suvarnabhumi

일 14/12

03:15-19:10

1 stop22h 55m

£513

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

토 20/9

20:50-17:45

1 stop14h 55m

Bangkok Suvarnabhumi

토 4/10

19:10-19:10

1 stop30h 00m

£513

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

금 23/1

08:25-06:45

1 stop15h 20m

Bangkok Suvarnabhumi

일 8/3

20:05-18:25

1 stop29h 20m

£513

Flights are sorted by cheapest return flights first.

Deals found on 21/8

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 22 8월 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 22 8월 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).

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 22 8월 2025.
Check out reviews from past customers who have flown with EVA Air, Thai Airways, andQatar Airways from London Heathrow Airport to Thailand to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

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.
  • How long is the flight from London Heathrow Airport to Thailand?

    Departing from London Heathrow Airport to Thailand will take you 14h 55m. The distance from London Heathrow Airport to Thailand is about 5947 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London Heathrow Airport to Thailand one-way?

    For one-way options, check prices for China Southern. According to our data, you can fly for as low as £297. Users have also found prices from £303 and £334 on Air China and Air India, respectively.

  • What are the most popular routes 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 EVA Air (80%), Thai Airways (78%) and Air Canada (71%).

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

    On average you can expect to pay £2,528 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £420 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £342.

  • 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.

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 22 8월 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£112Average£142FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
SAUDIACheapest£336Average£603FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Norse Atlantic UKCheapest£348Average£564FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Hainan AirlinesCheapest£378Average£435FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£468Average£543FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
SWISSCheapest£486Average£756FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£486Average£735FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£486Average£826FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£489Average£807FlexibilityNo cancel feeOn-time77%
Search Air France flights
Turkish AirlinesCheapest£507Average£707FlexibilityNo 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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