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Cheap flights from London Heathrow Airport to Thailand from £265

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
3 Apr — 10 Apr1
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 4 March 2026.

Wed 6/521:20
LHR
-
CNX
2 stops29h 55m
China Eastern
Thu 4/616:20
CNX
-
LHR
2 stops32h 20m
China Eastern
Deal found 1/3£420
Sun 15/321:00
LHR
-
BKK
2 stops21h 15m
China Eastern
Wed 25/305:05
BKK
-
LHR
1 stop19h 25m
China Eastern
Deal found 28/2£424
Sun 8/321:00
LHR
-
BKK
1 stop18h 25m
China Eastern
Mon 23/321:05
BKK
-
LHR
2 stops27h 25m
China Eastern
Deal found 1/3£425
Sat 7/321:00
LHR
-
BKK
2 stops21h 15m
China Eastern
Tue 17/305:05
BKK
-
LHR
1 stop19h 25m
China Eastern
Deal found 27/2£426
Fri 13/321:10
LHR
-
BKK
1 stop31h 00m
Shenzhen Airlines
Tue 24/319:30
BKK
-
LHR
1 stop30h 40m
Shenzhen Airlines
Deal found 28/2£426
Sun 15/321:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Thu 21/519:15
BKK
-
LHR
1 stop30h 45m
Shenzhen Airlines
Deal found 4/3£427
Fri 24/422:05
LHR
-
BKK
1 stop38h 25m
Shenzhen Airlines
Fri 8/512:10
BKK
-
LHR
1 stop37h 40m
Shenzhen Airlines
Deal found 27/2£428
Thu 5/1121:00
LHR
-
CNX
1 stop34h 20m
China Eastern
Thu 12/1115:35
CNX
-
LHR
1 stop32h 55m
China Eastern
Deal found 3/3£428
Wed 11/321:10
LHR
-
BKK
1 stop38h 20m
Shenzhen Airlines
Thu 11/603:15
BKK
-
LHR
1 stop22h 45m
Shenzhen Airlines
Deal found 3/3£429
Sat 2/521:20
LHR
-
CNX
2 stops29h 55m
China Eastern
Mon 18/516:20
CNX
-
LHR
2 stops32h 20m
China Eastern
Deal found 28/2£429
Sat 2/521:20
LHR
-
BKK
1 stop17h 35m
China Eastern
Sun 17/513:35
BKK
-
LHR
1 stop35h 05m
China Eastern
Deal found 3/3£429
Sat 25/421:20
LHR
-
CNX
1 stop34h 05m
China Eastern
Tue 19/514:55
CNX
-
LHR
1 stop33h 45m
China Eastern
Deal found 3/3£429

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 4 March 2026.

Round-trip from

£420

One-way from

£265

Popular in

July

Cheapest in

May

Average price

£623

Good round-trip deal

£705 or less

Good one-way deal

£488 or less
China Eastern
  • China Eastern
  • 6/5-4/6
  • 4 total stops
  • 62h 15m total
  • London to Thailand
Search Deals
Air China
  • Air China
  • 12/3
  • 1 total stop
  • 32h 15m total
  • London to Thailand
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 4 March 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

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 16/3

21:10-02:15

1 stop22h 05m

Bangkok Suvarnabhumi

Sun 29/3

03:15-19:50

1 stop22h 35m

£441

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 25/5

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Fri 12/6

03:15-19:50

1 stop22h 35m

£443

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 8/5

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Sun 7/6

03:15-19:50

1 stop22h 35m

£444

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 7/6

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Thu 25/6

19:30-20:00

1 stop30h 30m

£444

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Mon 20/4

20:50-19:00

1 stop16h 10m

Phuket City

Sun 10/5

21:00-06:30

1 stop15h 30m

£491

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Thu 16/4

20:50-19:55

1 stop17h 05m

Phuket City

Sun 3/5

09:10-06:30

1 stop27h 20m

£494

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Tue 12/5

21:20-22:45

1 stop19h 25m

Phuket City

Tue 19/5

18:55-18:40

2 stops53h 45m

£502

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 8/4

21:20-09:15

2 stops53h 55m

Chiang Mai

Sun 3/5

10:05-18:40

2 stops38h 35m

£508

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 5/4

20:50-06:50

1 stop28h 00m

Bangkok Suvarnabhumi

Mon 27/4

19:10-19:10

1 stop30h 00m

£517

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Fri 3/4

20:50-08:00

1 stop29h 10m

Phuket City

Sun 3/5

09:10-06:30

1 stop27h 20m

£527

Flights are sorted by cheapest return flights first.

Deals found on 27/2

Showing 1-10 of 60 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Thailand (average of £178). Flying from London Heathrow Airport to Thailand in July is currently the most expensive (average of £539). 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 March 2026.

It’s optimal to fly from London Heathrow Airport to Thailand at midday. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Thailand?

Use this chart to determine the cheapest time to fly return from Heathrow to Thailand. Price data was last updated on 21 February 2026.

Travellers seeking maximum savings on their London Heathrow Airport to Thailand flight should consider departing on Saturday afternoons when fares are most often at their lowest. Tuesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 March 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 88 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 9% 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 4 March 2026.
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.
EVA Air
8.4
Very Good
1,364 reviews
Check prices

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
EVA Air
8.4
Very Good
1,364 reviews
EVA Air
8.4
Very Good
1,364 reviews
Check prices

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Thai Airways
7.8
Good
389 reviews
EVA Air
8.4
Very Good
1,364 reviews
Check prices

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Qatar Airways
7.4
Good
3,746 reviews
EVA Air
8.4
Very Good
1,364 reviews
Check prices

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Etihad Airways
7.3
Good
1,424 reviews
EVA Air
8.4
Very Good
1,364 reviews
Check prices

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Air India
5.5
Fair
2,972 reviews
EVA Air
8.4
Very Good
1,364 reviews
Check prices

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

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 16h 10m. 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 £242. Users have also found prices from £252 and £257 on Hainan Airlines and Turkmenistan 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 (88%), Air Canada (85%) and EVA Air (85%).

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

    On average you can expect to pay £2,324 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £450 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £153.

  • 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Thailand (average of £178). Flying from London Heathrow Airport to Thailand in July is currently the most expensive (average of £539). 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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Stansted to Denpasar flights
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Stansted to New Delhi flights
London City to Denpasar flights
Heathrow to Bangalore flights
Gatwick to Phuket City flights
Stansted to Phuket 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 4 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£114Average£143FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Scandinavian AirlinesCheapest£285Average£689FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Norse Atlantic UKCheapest£296Average£563FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
China AirlinesCheapest£341Average£718FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
ITA AirwaysCheapest£368Average£530FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights
Royal JordanianCheapest£411Average£733FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
LufthansaCheapest£469Average£710FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Gulf AirCheapest£495Average£671FlexibilityNo cancel feeOn-time67%
Search Gulf Air flights
KLMCheapest£506Average£753FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£508Average£795FlexibilityNo cancel feeOn-time77%
Search Air France 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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