Cheap flights from London Heathrow Airport to Thailand from £271

LHR — BKK
9 Dec — 16 Dec1
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

Thu 26/1112:30 -
2 stops27h 35m
Wed 16/1210:50 -
2 stops26h 35m
Deal found 5/11£433
Sun 22/1121:10 -
1 stop21h 10m
Sat 19/1202:20 -
1 stop23h 50m
Deal found 4/11£433
Wed 11/1122:00 -
1 stop34h 00m
Wed 18/1108:10 -
1 stop17h 25m
Deal found 4/11£434
Wed 11/1122:00 -
1 stop36h 05m
Wed 25/1112:25 -
1 stop37h 10m
Deal found 4/11£435
Tue 24/1122:30 -
1 stop19h 50m
Mon 7/1202:20 -
1 stop25h 10m
Deal found 4/11£436
Tue 1/1222:30 -
1 stop29h 40m
Mon 28/1218:10 -
1 stop33h 20m
Deal found 9/11£436
Thu 3/1222:00 -
1 stop33h 00m
Mon 21/1218:05 -
1 stop31h 30m
Deal found 4/11£437
Fri 13/1112:30 -
1 stop21h 05m
Thu 3/1201:50 -
1 stop19h 20m
Deal found 5/11£438
Wed 2/1216:05 -
1 stop25h 45m
Sat 12/1201:50 -
1 stop19h 20m
Deal found 4/11£439
Sat 7/1121:10 -
1 stop31h 00m
Fri 20/1118:10 -
1 stop32h 00m
Deal found 6/11£439
Wed 2/1216:05 -
1 stop17h 30m
Tue 2/219:50 -
1 stop25h 20m
Deal found 9/11£440
Sun 29/1112:30 -
1 stop29h 20m
Sat 12/1201:50 -
1 stop19h 20m
Deal found 4/11£441

Find flight deals from Heathrow to Thailand

Round-trip from

£432

One-way from

£271

Popular in

December

Cheapest in

September

Average price

£579

Good round-trip deal

£708 or less

Good one-way deal

£502 or less
China Southern
  • China Southern
  • 27/2-15/3
  • 2 total stops
  • 67h 35m total
  • London to Thailand
Hainan Airlines
  • Hainan Airlines
  • 2/12-31/12
  • 1 total stop
  • 30h 00m total
  • London to Thailand
Highest demand for flights based on searches. 7% potential increase in price (£38 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 November 2026
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.

Cheapflights Fare Finder

 
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

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Mon 30/11

21:10-17:05

1 stop36h 55m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£290

LondonChiang Mai

LHR London Heathrow - CNX Chiang Mai

LHRCNX

London Heathrow

Tue 5/1

12:30-14:20

1 stop18h 50m

Chiang Mai

Wed 31/12

00:00-18:00

Nonstop0h 00m

£350

LondonChiang Mai

LHR London Heathrow - CNX Chiang Mai

LHRCNX

London Heathrow

Thu 21/1

22:15-15:40

2 stops34h 25m

Chiang Mai

Wed 31/12

00:00-18:00

Nonstop0h 00m

£352

LondonChiang Mai

LHR London Heathrow - CNX Chiang Mai

LHRCNX

London Heathrow

Thu 7/1

12:30-14:20

1 stop18h 50m

Chiang Mai

Wed 31/12

00:00-18:00

Nonstop0h 00m

£353

LondonKrabi

LHR London Heathrow - KBV Krabi

LHRKBV

London Heathrow

Wed 20/1

21:05-20:10

2 stops40h 05m

Krabi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£357

LondonChiang Mai

LHR London Heathrow - CNX Chiang Mai

LHRCNX

London Heathrow

Wed 25/11

21:00-12:00

2 stops32h 00m

Chiang Mai

Wed 31/12

00:00-18:00

Nonstop0h 00m

£359

LondonKrabi

LHR London Heathrow - KBV Krabi

LHRKBV

London Heathrow

Fri 26/2

19:30-11:15

3 stops56h 45m

Krabi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£359

LondonChiang Mai

LHR London Heathrow - CNX Chiang Mai

LHRCNX

London Heathrow

Tue 8/12

15:15-06:25

2 stops32h 10m

Chiang Mai

Wed 31/12

00:00-18:00

Nonstop0h 00m

£372

LondonChiang Mai

LHR London Heathrow - CNX Chiang Mai

LHRCNX

London Heathrow

Wed 6/1

21:30-22:50

3 stops42h 20m

Chiang Mai

Wed 31/12

00:00-18:00

Nonstop0h 00m

£373

LondonChiang Mai

LHR London Heathrow - CNX Chiang Mai

LHRCNX

London Heathrow

Wed 25/11

20:25-21:50

1 stop18h 25m

Chiang Mai

Wed 31/12

00:00-18:00

Nonstop0h 00m

£410

Flights are sorted by cheapest return flights first.

Deals found on 5/11

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

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 £591). Flying from London Heathrow Airport to Thailand in December is currently the most expensive (average of £965). 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?

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

The most flights from LHR to TH0 are scheduled on a Monday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

How often are flights from London to Thailand delayed?

About 10% of weekly flights between London and Thailand have experienced delays in the past year, with the average delay time being 90 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 4% of flights being delayed.

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

Booking 87 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.

Reviews of airlines servicing Thailand

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.

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2026

TPE - CNX

I appreciate the free WIFI and meals. The crew are friendly.

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2026

TPE - CNX

I appreciate the free WIFI and meals. The crew are friendly.

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2026

TPE - CNX

I appreciate the free WIFI and meals. The crew are friendly.

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2026

TPE - CNX

I appreciate the free WIFI and meals. The crew are friendly.

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2026

TPE - CNX

I appreciate the free WIFI and meals. The crew are friendly.

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2026

TPE - CNX

I appreciate the free WIFI and meals. The crew are friendly.

Related info for your journey

  • 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 Etihad Airways. According to our data, you can fly for as low as £246. Users have also found prices from £247 and £249 on Singapore Airlines and Shenzhen Airlines, 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 Thai Airways (75%), EVA Air (75%) and TAP AIR PORTUGAL (72%).

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

    On average you can expect to pay £1,347 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £430 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £371.

  • 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 £591). Flying from London Heathrow Airport to Thailand in December is currently the most expensive (average of £965). 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

Alternative routes for Heathrow to Thailand

Top 10 airlines flying from Heathrow to Thailand

AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£124Average£168FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Air ArabiaCheapest£282Average£715FlexibilityNo cancel feeOn-time79%
Search Air Arabia flights
Norse Atlantic UKCheapest£291Average£650FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Royal JordanianCheapest£310Average£690FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
XiamenAirCheapest£313Average£728FlexibilityNo cancel feeOn-time49%
Search XiamenAir flights
Hainan AirlinesCheapest£328Average£410FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Scandinavian AirlinesCheapest£342Average£631FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Kuwait AirwaysCheapest£368Average£726FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
LufthansaCheapest£400Average£890FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Riyadh AirCheapest£400Average£530FlexibilityNo cancel feeOn-timeN/A
Search Riyadh Air 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.

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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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