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Cheap flights from London Heathrow Airport to Thailand from £276

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
27 May — 3 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Thailand

Enter your travel dates to find the best prices.

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 27 April 2026.

Mon 16/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Sun 29/1119:30
BKK
-
LHR
1 stop30h 40m
Shenzhen Airlines
Deal found 25/4£432
Sat 7/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Sat 21/1112:10
BKK
-
LHR
1 stop38h 00m
Shenzhen Airlines
Deal found 27/4£433
Mon 2/1121:10
LHR
-
BKK
1 stop31h 00m
Shenzhen Airlines
Sun 15/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 26/4£434
Sun 10/522:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Sun 24/515:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 24/4£434
Thu 4/614:40
LHR
-
BKK
1 stop17h 00m
SAUDIA
Thu 11/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 23/4£435
Sun 3/522:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Sun 10/515:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 27/4£436
Thu 7/514:40
LHR
-
BKK
1 stop17h 00m
SAUDIA
Wed 13/501:50
BKK
-
LHR
1 stop16h 50m
SAUDIA
Deal found 24/4£437
Tue 12/522:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Thu 28/515:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 23/4£437
Mon 1/616:15
LHR
-
BKK
1 stop15h 30m
SAUDIA
Sun 21/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 27/4£438
Tue 2/622:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Tue 9/615:25
BKK
-
LHR
1 stop29h 25m
SAUDIA
Deal found 23/4£439
Sat 30/510:00
LHR
-
BKK
1 stop21h 45m
SAUDIA
Thu 25/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 27/4£440
Thu 18/614:40
LHR
-
BKK
1 stop17h 00m
SAUDIA
Tue 30/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 25/4£440

Find flight deals from Heathrow to Thailand

Keep the following information in mind while searching for Heathrow to Thailand flight deals. Data was last updated 27 April 2026.

Round-trip from

£432

One-way from

£276

Popular in

December

Cheapest in

May

Average price

£606

Good round-trip deal

£665 or less

Good one-way deal

£528 or less
SAUDIA
  • SAUDIA
  • 31/5-20/6
  • 2 total stops
  • 42h 00m total
  • London to Thailand
Search Deals
Air China
  • Air China
  • 7/9
  • 1 total stop
  • 17h 10m total
  • London to Thailand
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Thailand.
Search Deals
Price to beat on a one-way flight from London Heathrow to Thailand.
Search Deals

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 27 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonHat Yai

LHR - HDY

LHRHDY

London Heathrow

Mon 8/6

10:00-21:15

2 stops29h 15m

Hat Yai

Mon 15/6

21:50-07:30

2 stops39h 40m

£475

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Mon 8/6

10:00-20:55

2 stops28h 55m

Udon Thani

Mon 15/6

21:25-07:30

2 stops40h 05m

£491

LondonHat Yai

LHR - HDY

LHRHDY

London Heathrow

Thu 11/6

22:10-08:40

2 stops28h 30m

Hat Yai

Thu 18/6

09:10-07:30

2 stops28h 20m

£492

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Tue 9/6

22:10-07:55

2 stops27h 45m

Chiang Rai

Tue 16/6

08:25-07:30

2 stops29h 05m

£506

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 8/9

21:20-04:05

1 stop24h 45m

Bangkok Suvarnabhumi

Thu 8/10

03:00-18:40

2 stops21h 40m

£534

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 8/9

12:30-13:35

1 stop19h 05m

Bangkok Suvarnabhumi

Wed 7/10

20:20-11:30

1 stop21h 10m

£557

LondonHat Yai

LHR - HDY

LHRHDY

London Heathrow

Wed 10/6

10:00-21:15

2 stops29h 15m

Hat Yai

Wed 17/6

09:10-12:40

2 stops33h 30m

£562
Fastest return journey

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Tue 19/5

20:45-18:20

1 stop15h 35m

Phuket City

Wed 27/5

09:25-18:45

1 stop15h 20m

£568

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Fri 5/6

14:45-23:55

1 stop27h 10m

Phuket City

Tue 30/6

15:45-07:00

1 stop21h 15m

£579

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Sat 13/6

14:45-23:55

1 stop27h 10m

Phuket City

Fri 19/6

02:25-15:05

1 stop18h 40m

£579

Flights are sorted by cheapest return flights first.

Deals found on 26/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

How far ahead should I book a flight from London Heathrow Airport to Thailand?

Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Thailand. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 £587). Flying from London Heathrow Airport to Thailand in December is currently the most expensive (average of £907). 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 27 April 2026.

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 27 April 2026.

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).

How often are flights from London to Thailand delayed?

About 15% of weekly flights between London and Thailand have experienced delays in the past year, with the average delay time being 89 minutes.

What is the most punctual flight time for London to Thailand flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Thailand flights?

Over the past year, EVA Air have had the lowest number of delays on this route, with just 8% of flights being delayed.

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 27 April 2026.
Check out reviews from past customers who have flown with EVA Air,Oman Air, andThai 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.
EVA Air
8.5
Very Good
1,432 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CRK - TPE

What about midnight snacks to add? Used to have that before..
EVA Air
8.5
Very Good
1,432 reviews
EVA Air
8.5
Very Good
1,432 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CRK - TPE

What about midnight snacks to add? Used to have that before..
Oman Air
8.1
Very Good
122 reviews
EVA Air
8.5
Very Good
1,432 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CRK - TPE

What about midnight snacks to add? Used to have that before..
Thai Airways
7.9
Good
401 reviews
EVA Air
8.5
Very Good
1,432 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CRK - TPE

What about midnight snacks to add? Used to have that before..
Qatar Airways
7.4
Good
3,725 reviews
EVA Air
8.5
Very Good
1,432 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CRK - TPE

What about midnight snacks to add? Used to have that before..
Etihad Airways
7.3
Good
1,433 reviews
EVA Air
8.5
Very Good
1,432 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

CRK - TPE

What about midnight snacks to add? Used to have that before..

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 15h 35m. The distance from London Heathrow Airport to Thailand is about 6149 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 Shenzhen Airlines. According to our data, you can fly for as low as £239. Users have also found prices from £243 and £252 on Etihad Airways and Hainan Airlines, 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 Thai Airways (77%), Air Canada (74%) and EVA Air (71%).

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

    On average you can expect to pay £1,015 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £497 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £378.

  • 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 £587). Flying from London Heathrow Airport to Thailand in December is currently the most expensive (average of £907). 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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London City to Denpasar flights
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Heathrow to Lahore flights
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Stansted to Colombo flights
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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 27 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£113Average£141FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Norse Atlantic UKCheapest£213Average£560FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Scandinavian AirlinesCheapest£281Average£634FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
ITA AirwaysCheapest£363Average£529FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights
Hainan AirlinesCheapest£370Average£401FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Turkish AirlinesCheapest£380Average£705FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Royal JordanianCheapest£405Average£714FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
CondorCheapest£447Average£717FlexibilityNo cancel feeOn-time76%
Search Condor flights
LufthansaCheapest£458Average£687FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£502Average£721FlexibilityNo cancel feeOn-time75%
Search KLM 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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