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Cheap flights from London to Thailand from ฿12,420

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BKK
30 Jun — 7 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Thailand

Enter your travel dates to find the best prices.

Cheapest flights from London to Thailand
Explore the most affordable flight options available from London to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 May 2026.

Thu 12/1120:25
LHR
-
BKK
1 stop20h 45m
Air China
Mon 23/1101:30
BKK
-
LHR
1 stop23h 20m
Air China
Deal found 26/5฿20,028
Fri 16/1010:40
LGW
-
BKK
1 stop17h 05m
กัลฟ์แอร์
Tue 3/1119:15
BKK
-
LGW
1 stop18h 15m
กัลฟ์แอร์
Deal found 26/5฿20,093
Sun 8/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Tue 17/1112:10
BKK
-
LHR
1 stop38h 00m
Shenzhen Airlines
Deal found 26/5฿20,093
Fri 6/1111:05
LGW
-
BKK
1 stop31h 25m
Air China
Tue 17/1102:30
BKK
-
LGW
1 stop35h 25m
Air China
Deal found 26/5฿20,126
Sat 31/1021:35
LHR
-
BKK
1 stop31h 55m
Air China
Tue 24/1101:30
BKK
-
LHR
1 stop23h 20m
Air China
Deal found 27/5฿20,126
Fri 29/519:45
LGW
-
BKK
1 stop34h 50m
คอนดอร์
Mon 8/622:35
BKK
-
LGW
1 stop16h 25m
คอนดอร์
Deal found 27/5฿20,158
Tue 3/1121:35
LHR
-
BKK
1 stop36h 05m
Air China
Thu 19/1101:30
BKK
-
LHR
1 stop23h 20m
Air China
Deal found 27/5฿20,158
Sun 20/910:20
LGW
-
BKK
1 stop20h 15m
คอนดอร์
Thu 1/1022:35
BKK
-
LGW
1 stop22h 10m
คอนดอร์
Deal found 26/5฿20,191
Sat 7/1121:35
LHR
-
BKK
1 stop36h 05m
Air China
Fri 20/1101:30
BKK
-
LHR
1 stop23h 20m
Air China
Deal found 27/5฿20,191
Fri 6/1108:25
STN
-
BKK
1 stop16h 45m
Multiple Airlines
Tue 17/1106:00
BKK
-
STN
1 stop18h 55m
Multiple Airlines
Deal found 26/5฿20,191
Mon 9/1117:00
LGW
-
BKK
1 stop24h 55m
Multiple Airlines
Tue 17/1107:45
BKK
-
LGW
Nonstop13h 00m
Multiple Airlines
Deal found 29/5฿20,223
Tue 3/1121:35
LHR
-
BKK
1 stop36h 05m
Air China
Tue 1/1201:30
BKK
-
LHR
1 stop21h 25m
Air China
Deal found 31/5฿20,223

Find flight deals from London to Thailand

Keep the following information in mind while searching for London to Thailand flight deals. Data was last updated 31 May 2026.

Round-trip from

฿20,028

One-way from

฿12,420

Popular in

December

Cheapest in

September

Average price

฿23,865

Good round-trip deal

฿16,669 or less

Good one-way deal

฿26,935 or less
Air China
  • Air China
  • 12/11-23/11
  • 2 total stops
  • 44h 05m total
  • London to Thailand
Search Deals
China Eastern
  • China Eastern
  • 29/8
  • 1 total stop
  • 22h 15m total
  • London to Thailand
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (฿54,591 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿26,236 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to Thailand.
Search Deals
Price to beat on a one-way flight from London (LON) to Thailand.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 17,341 searches. Data last updated 31 May 2026.
Use the filters below to find and compare flights from London to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 11/11

17:00-14:55

2 stops38h 55m

Bangkok Suvarnabhumi

Sat 14/11

13:35-14:00

1 stop31h 25m

฿20,548

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Fri 12/6

15:45-12:35

1 stop14h 50m

Bangkok Suvarnabhumi

Mon 6/7

22:35-14:40

1 stop22h 05m

฿20,743

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 16/11

10:30-20:10

3 stops26h 40m

Bangkok Suvarnabhumi

Tue 17/11

01:55-14:00

1 stop19h 05m

฿21,459

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 16/11

10:30-14:55

3 stops45h 25m

Bangkok Suvarnabhumi

Thu 19/11

13:35-14:00

1 stop31h 25m

฿22,792

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 22/11

17:00-00:55

1 stop24h 55m

Bangkok Suvarnabhumi

Sun 20/12

21:05-06:30

2 stops40h 25m

฿22,857

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 26/10

20:55-08:40

1 stop28h 45m

Bangkok Suvarnabhumi

Fri 6/11

05:40-08:35

1 stop33h 55m

฿22,889

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 17/11

10:30-12:20

1 stop18h 50m

Bangkok Suvarnabhumi

Wed 16/12

15:55-06:30

3 stops45h 35m

฿22,954

LondonPhuket City

LGW - HKT

LGWHKT

London Gatwick

Mon 2/11

17:00-19:35

2 stops43h 35m

Phuket City

Mon 16/11

20:50-14:00

3 stops48h 10m

฿23,149

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 10/11

08:40-12:15

1 stop20h 35m

Bangkok Suvarnabhumi

Thu 26/11

09:05-05:55

1 stop27h 50m

฿25,880

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 16/11

09:00-12:15

1 stop20h 15m

Bangkok Suvarnabhumi

Thu 26/11

09:05-05:55

1 stop27h 50m

฿25,880

Flights are sorted by cheapest return flights first.

Deals found on 30/5

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to Thailand

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

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

Currently, May is the cheapest month in which you can book a flight from London to Thailand (average of ฿24,970). Flying from London to Thailand in December is currently the most expensive (average of ฿37,878). 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 LON to TH?

Find hourly flight availability from London 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 31 May 2026.

When flying from London 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 to Thailand

Explore weekly flight availability from London 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 31 May 2026.

The most flights from LON to TH0 are scheduled on a Tuesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

How often are flights from London to Thailand delayed?

About 14% of weekly flights between London and Thailand have experienced delays in the past year, with the average delay time being 91 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 Sunday 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 7% of flights being delayed.

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

The best time to book flights from London to Thailand is 41 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 31 May 2026.
See what other customers who have flown with EVA Air,Thai Airways, andเอทิฮัดแอร์เวย์ from London to Thailand have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,464 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
EVA Air
8.5
Very Good
1,464 reviews
EVA Air
8.5
Very Good
1,464 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
Thai Airways
7.9
Good
404 reviews
EVA Air
8.5
Very Good
1,464 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
เอทิฮัดแอร์เวย์
7.3
Good
1,444 reviews
EVA Air
8.5
Very Good
1,464 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
Norse Atlantic UK
7.2
Good
EVA Air
8.5
Very Good
1,464 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
บริติชแอร์เวย์
6.7
Okay
8,012 reviews
EVA Air
8.5
Very Good
1,464 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

Related info for your journey

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

    For as low as ฿20,743, China Eastern can have you in Thailand from London in 14h 50m. London and Thailand are separated by a distance of 9563 km. This flight may include one or multiple stops.

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

    For one-way options, check prices for China Eastern. According to our data, you can fly for as low as ฿10,833. Users have also found prices from ฿13,139 and ฿14,378 on โอมานแอร์ and สวิส อินเตอร์เนชั่นแนล แอร์ไลน์, respectively.

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

    While some choose either London Gatwick - Bangkok Suvarnabhumi or London Stansted - Bangkok Suvarnabhumi, London Heathrow - Bangkok Suvarnabhumi is the most popular route from London to Thailand.

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

    Consider TAP ปอร์ตูกัล (87%), Thai Airways (78%) or แอร์แคนาดา (75%) when booking your flight. These represent the most reliable airlines when flying from London to Thailand.

  • What are the cheapest flights from London to Thailand?

    The cheapest flight price from London to Thailand is ฿25,239. On average you can expect to pay ฿41,602. The most popular route, (London Heathrow - Bangkok Suvarnabhumi), can usually be booked for ฿19,248.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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 to Thailand?

    Currently, May is the cheapest month in which you can book a flight from London to Thailand (average of ฿24,970). Flying from London to Thailand in December is currently the most expensive (average of ฿37,878). 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

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Alternative routes for London to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
Manchester to Suvarnabhumi flights
Birmingham to Suvarnabhumi flights

Top 10 airlines flying from London to Thailand

Discover the top 10 airlines that operate flights from London 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 17,341 searches. Data last updated 31 May 2026.
AirlineCheapestAverageFlexibilityOn-time
ไห่หนานแอร์ไลน์Cheapest฿12,375Average฿18,650FlexibilityNo cancel feeOn-time61%
Search ไห่หนานแอร์ไลน์ flights
Shenzhen AirlinesCheapest฿15,609Average฿19,222FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air ChinaCheapest฿17,464Average฿19,526FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest฿18,270Average฿21,595FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
บริติชแอร์เวย์Cheapest฿19,441Average฿31,132FlexibilityNo cancel feeOn-time70%
Search บริติชแอร์เวย์ flights
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์Cheapest฿20,322Average฿38,385FlexibilityNo cancel feeOn-time79%
Search สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ flights
เอทิฮัดแอร์เวย์Cheapest฿21,745Average฿25,735FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
โอมานแอร์Cheapest฿22,133Average฿24,493FlexibilityNo cancel feeOn-time76%
Search โอมานแอร์ flights
Qatar AirwaysCheapest฿22,939Average฿26,703FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Thai AirwaysCheapest฿29,704Average฿38,984FlexibilityNo cancel feeOn-time77%
Search Thai 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 London to Thailand?

Deals for London to Thailand flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Thailand for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Thailand from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Thailand 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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