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Cheap flights from Thailand to London Heathrow Airport from £206

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 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
17 Mar — 24 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Heathrow
Explore the most affordable flight options available from Thailand to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 February 2026.

Thu 5/311:10
BKK
-
LHR
2 stops37h 25m
Multiple Airlines
Thu 12/317:40
LHR
-
BKK
1 stop17h 25m
Multiple Airlines
Deal found 11/2£440
Tue 24/311:10
BKK
-
LHR
1 stop36h 10m
Multiple Airlines
Wed 8/422:40
LHR
-
BKK
1 stop19h 30m
Multiple Airlines
Deal found 12/2£450
Sun 8/319:55
BKK
-
LHR
1 stop29h 40m
Multiple Airlines
Mon 16/321:00
LHR
-
BKK
2 stops30h 05m
Multiple Airlines
Deal found 11/2£451
Thu 5/311:10
BKK
-
LHR
2 stops37h 25m
Multiple Airlines
Wed 11/317:40
LHR
-
BKK
1 stop17h 25m
Multiple Airlines
Deal found 11/2£452
Thu 5/319:10
BKK
-
LHR
2 stops29h 25m
Multiple Airlines
Tue 10/317:40
LHR
-
BKK
1 stop17h 25m
Multiple Airlines
Deal found 12/2£452
Thu 12/319:10
BKK
-
LHR
2 stops29h 25m
Multiple Airlines
Tue 17/322:10
LHR
-
BKK
1 stop31h 20m
Multiple Airlines
Deal found 13/2£455
Thu 5/319:10
BKK
-
LHR
2 stops29h 25m
Multiple Airlines
Tue 17/321:05
LHR
-
BKK
1 stop21h 15m
Multiple Airlines
Deal found 12/2£458
Tue 31/319:20
BKK
-
LHR
1 stop30h 10m
Multiple Airlines
Sat 2/522:40
LHR
-
BKK
1 stop37h 40m
Multiple Airlines
Deal found 13/2£458
Thu 5/311:10
BKK
-
LHR
2 stops37h 25m
Multiple Airlines
Sun 15/320:25
LHR
-
BKK
1 stop20h 45m
Multiple Airlines
Deal found 11/2£460
Tue 12/511:05
BKK
-
LHR
1 stop38h 25m
Multiple Airlines
Sat 16/522:00
LHR
-
BKK
1 stop37h 05m
Multiple Airlines
Deal found 11/2£463
Tue 10/321:15
CNX
-
LHR
2 stops28h 45m
Multiple Airlines
Tue 17/320:25
LHR
-
CNX
1 stop18h 25m
Multiple Airlines
Deal found 11/2£519
Sun 29/316:20
CNX
-
LHR
2 stops32h 20m
China Eastern
Sun 5/421:20
LHR
-
CNX
2 stops29h 55m
China Eastern
Deal found 11/2£521

Find flight deals from Thailand to Heathrow

Keep the following information in mind while searching for Thailand to Heathrow flight deals. Data was last updated 15 February 2026.

Round-trip from

£440

One-way from

£206

Popular in

January

Cheapest in

November

Average price

£649

Good round-trip deal

£725 or less

Good one-way deal

£385 or less
Air China
  • Air China
  • 5/3-12/3
  • 3 total stops
  • 54h 50m total
  • Thailand to London
Search Deals
30/3
  • 30/3
  • 2 total stops
  • 52h 40m total
  • Thailand to London
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Thailand to London Heathrow.
Search Deals
Price to beat on a one-way flight from Thailand to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand to Heathrow 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 15 February 2026.
Use the filters below to find and compare flights from Thailand to London Heathrow Airport that are best for you.

Fly from

Thailand

Fly to

Heathrow

Route

Depart

Return

Price

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 1/4

11:20-19:00

1 stop37h 40m

London Heathrow

Wed 8/4

22:40-00:10

1 stop19h 30m

£485

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 29/3

16:20-18:40

2 stops32h 20m

London Heathrow

Sun 5/4

21:20-09:15

2 stops29h 55m

£521

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 10/3

16:25-17:30

2 stops32h 05m

London Heathrow

Tue 17/3

21:00-09:05

2 stops29h 05m

£534

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Mon 30/3

18:55-18:40

2 stops29h 45m

London Heathrow

Mon 6/4

21:20-22:45

1 stop19h 25m

£537

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 18/3

21:05-17:30

2 stops27h 25m

London Heathrow

Wed 10/6

21:20-20:55

1 stop17h 35m

£538

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 1/4

13:20-18:40

2 stops35h 20m

London Heathrow

Wed 8/4

06:15-01:10

2 stops36h 55m

£548

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 4/3

20:05-18:25

1 stop29h 20m

London Heathrow

Wed 18/3

20:05-17:45

1 stop14h 40m

£548

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 6/3

20:05-18:25

1 stop29h 20m

London Heathrow

Wed 18/3

20:05-17:45

1 stop14h 40m

£548

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 3/3

20:05-18:25

1 stop29h 20m

London Heathrow

Mon 16/3

08:25-06:45

1 stop15h 20m

£548

Phuket CityLondon

HKT - LHR

HKTLHR

Phuket City

Mon 30/3

14:00-20:15

1 stop36h 15m

London Heathrow

Mon 6/4

21:20-22:45

1 stop19h 25m

£551

Flights are sorted by cheapest return flights first.

Deals found on 12/2

Showing 1-10 of 60 results
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Best time to book a flight from Thailand to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Thailand 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 Thailand to London Heathrow Airport

What is the cheapest month to book a flight from Thailand to London Heathrow Airport?

Currently, March is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £249). Flying from Thailand to London Heathrow Airport in April is currently the most expensive (average of £594). 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 TH to LHR?

Find hourly flight availability from Thailand to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 February 2026.

When flying from Thailand to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 22% versus a flight at midday.

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

Use this chart to determine the cheapest time to fly return from Thailand to Heathrow. Price data was last updated on 7 February 2026.

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

Weekly flight availability from Thailand to London Heathrow Airport

Explore weekly flight availability from Thailand to Heathrow. 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 15 February 2026.

The most flights from TH0 to LHR are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

How often are flights from Thailand to London delayed?

About 13% of weekly flights between Thailand and London have experienced delays in the past year, with the average delay time being 90 minutes.

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

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

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

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

Over the past year, EVA Air have had the lowest number of delays on this route, with just 10% of flights being delayed.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 15 February 2026.
Check out reviews from past customers who have flown with EVA Air, Emirates, andThai Airways from Thailand to London Heathrow Airport 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
1,353 reviews
Check prices

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
EVA Air
8.4
Very Good
1,353 reviews
EVA Air
8.4
Very Good
1,353 reviews
Check prices

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Emirates
8.1
Very Good
3,520 reviews
EVA Air
8.4
Very Good
1,353 reviews
Check prices

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Thai Airways
7.8
Good
382 reviews
EVA Air
8.4
Very Good
1,353 reviews
Check prices

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Qatar Airways
7.4
Good
3,736 reviews
EVA Air
8.4
Very Good
1,353 reviews
Check prices

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Etihad Airways
7.3
Good
1,395 reviews
EVA Air
8.4
Very Good
1,353 reviews
Check prices

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.

Related info for your journey

Find useful and relevant information for your journey from Thailand to Heathrow. 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 Thailand to London Heathrow Airport?

    For as low as £548, China Eastern can have you in London Heathrow Airport from Thailand in 29h 20m. Thailand and London Heathrow Airport are separated by a distance of 5947 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Norse Atlantic UK, with whom users have recently found tickets for as low as £114. However, be on the lookout for offers from Scandinavian Airlines and Oman Air, as they are both options that can get you from Thailand to London Heathrow Airport for a low price.

  • What are the most popular routes from Thailand to London Heathrow Airport?

    The most popular flight routes from Thailand to London Heathrow Airport are Bangkok Suvarnabhumi - London Heathrow, Bangkok Don Mueang Intl - London Heathrow and Chiang Mai - London Heathrow.

  • What are the most reliable airlines from Thailand to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Thailand to London Heathrow Airport consider choosing Air Canada (95%), Thai Airways (85%) or EVA Air (80%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £992 for a flight from Thailand to London Heathrow Airport. The cheapest flight overall is £375 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £439.

  • Can I find deals for flights from Thailand to Heathrow that include hotel bookings?

    Yes. In addition to deals on Thailand to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Thailand to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Heathrow.

  • Can I find deals for business class flights from Thailand to Heathrow?

    Yes. Cheapflights offers flight deals from Thailand to Heathrow 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 Thailand to London Heathrow Airport?

    Currently, March is the cheapest month in which you can book a flight from Thailand to London Heathrow Airport (average of £249). Flying from Thailand to London Heathrow Airport in April is currently the most expensive (average of £594). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Ipswich
Swindon

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Alternative routes for Thailand to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Narita to Gatwick flights
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Taiwan Taoyuan Intl to Gatwick flights
Singapore to Stansted flights

Top 10 airlines flying from Thailand to Heathrow

Discover the top 10 airlines that operate flights from Thailand to Heathrow. 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 15 February 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£209Average£511FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Oman AirCheapest£242Average£592FlexibilityNo cancel feeOn-time76%
Search Oman Air flights
Turkish AirlinesCheapest£374Average£575FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Austrian AirlinesCheapest£429Average£662FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
SAUDIACheapest£478Average£544FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
China EasternCheapest£496Average£567FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Kuwait AirwaysCheapest£503Average£567FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Air ChinaCheapest£503Average£540FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapest£505Average£660FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest£554Average£736FlexibilityNo cancel feeOn-time68%
Search Qatar 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 Thailand to Heathrow?

Cheapflights helps you search for flights from Thailand to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Heathrow?

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 Thailand to Heathrow.

Can Cheapflights find flights from Thailand to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Thailand shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Thailand to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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