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Cheap flights from Bangkok to London Heathrow Airport from ฿7,127

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
20 Jan — 27 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Bangkok to London Heathrow are usually found in November or March, booked 56 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Bangkok to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Heathrow
Explore the most affordable flight options available from Bangkok to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 December 2025.

Sun 28/1219:10BKK - LHR
2 stops29h 45mMultiple Airlines
Sun 25/121:10LHR - BKK
1 stop22h 05mMultiple Airlines
Deal found 21/12฿20,469
Sat 27/1219:10BKK - LHR
1 stop29h 45mไห่หนานแอร์ไลน์
Mon 12/121:00LHR - BKK
2 stops30h 05mไห่หนานแอร์ไลน์
Deal found 21/12฿20,909
Fri 26/1209:25BKK - LHR
1 stop28h 15mMultiple Airlines
Thu 1/121:35LHR - BKK
1 stop36h 05mMultiple Airlines
Deal found 20/12฿21,254
Fri 26/1209:25BKK - LHR
1 stop28h 15mMultiple Airlines
Tue 30/1222:10LHR - BKK
1 stop35h 30mMultiple Airlines
Deal found 20/12฿21,568
Sun 21/1201:30BKK - LHR
1 stop23h 20mMultiple Airlines
Wed 7/119:45LHR - BKK
1 stop31h 20mMultiple Airlines
Deal found 20/12฿21,757
Sat 27/1222:20BKK - LHR
1 stop20h 10mAir India
Wed 31/1221:05LHR - BKK
1 stop36h 00mAir India
Deal found 20/12฿21,945
Mon 22/1215:55BKK - LHR
2 stops32h 35mChina Eastern
Wed 7/106:20LHR - BKK
2 stops29h 05mChina Eastern
Deal found 20/12฿22,730
Tue 23/1212:45BKK - LHR
1 stop15h 55mMultiple Airlines
Tue 30/1221:30LHR - BKK
1 stop29h 20mMultiple Airlines
Deal found 20/12฿22,824
Wed 24/1220:50BKK - LHR
1 stop29h 05mAir India
Wed 31/1221:05LHR - BKK
1 stop36h 00mAir India
Deal found 21/12฿23,169
Fri 26/1220:55DMK - LHR
2 stops31h 45mMultiple Airlines
Tue 30/1206:00LHR - DMK
2 stops17h 35mMultiple Airlines
Deal found 20/12฿25,838
Mon 22/1220:55DMK - LHR
1 stop29h 25mMultiple Airlines
Wed 7/121:10LHR - DMK
1 stop21h 40mMultiple Airlines
Deal found 20/12฿26,278
Tue 23/1220:55DMK - LHR
2 stops25h 55mMultiple Airlines
Tue 30/1206:00LHR - DMK
2 stops17h 35mMultiple Airlines
Deal found 20/12฿27,722

Find flight deals from Bangkok to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 December 2025.

Round-trip from

฿20,218

One-way from

฿7,127

Popular in

April

Cheapest in

November

Average price

฿31,929
China Eastern
  • China Eastern
  • 15/1-18/1
  • 3 total stops
  • 55h 50m total
  • Bangkok to London
Search Deals
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 10/3
  • 1 total stop
  • 36h 10m total
  • Bangkok to London
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿13,936 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (฿9,799 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok 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 17,341 searches. Data last updated 21 December 2025.
Use the filters below to find and compare flights from Bangkok to London Heathrow Airport that are best for you.

Fly from

Bangkok

Fly to

Heathrow

Route

Depart

Return

Price

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 2/2

08:55-06:40

1 stop28h 45m

London Heathrow

Thu 26/2

20:55-23:25

1 stop19h 30m

฿24,425

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 2/2

01:15-12:15

1 stop18h 00m

London Heathrow

Sun 1/3

22:05-23:30

1 stop18h 25m

฿24,739

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 20/1

22:50-16:20

2 stops24h 30m

London Heathrow

Sat 24/1

21:10-01:50

1 stop21h 40m

฿25,367

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 20/1

20:10-19:30

1 stop30h 20m

London Heathrow

Tue 27/1

22:00-01:55

1 stop20h 55m

฿25,775

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 29/1

15:20-07:30

1 stop23h 10m

London Heathrow

Sun 22/2

17:00-23:30

1 stop23h 30m

฿26,466

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 25/3

07:55-20:10

1 stop19h 15m

London Heathrow

Sat 25/4

22:15-23:50

1 stop19h 35m

฿26,905

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Sat 21/3

20:55-13:45

2 stops23h 50m

London Heathrow

Thu 16/4

22:10-04:50

1 stop24h 40m

฿27,816

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 1/2

15:20-07:30

1 stop23h 10m

London Heathrow

Tue 24/2

22:05-23:30

1 stop18h 25m

฿28,381

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 27/1

14:40-06:40

1 stop23h 00m

London Heathrow

Sun 22/2

20:55-18:45

1 stop14h 50m

฿28,412

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 7/5

14:45-07:30

2 stops22h 45m

London Heathrow

Fri 29/5

20:35-20:25

1 stop17h 50m

฿28,538

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 45 results
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Best time to book a flight from Bangkok to Heathrow

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

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

Use this chart to determine the optimal time to book a return flight from Bangkok to Heathrow. Price data was last updated on 19 December 2025.

The price you pay for your flight from Bangkok to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of ฿20,595). Flying from Bangkok to London Heathrow Airport in January is currently the most expensive (average of ฿25,430). 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 BKK to LHR?

Find hourly flight availability from Bangkok 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 21 December 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 25% on flights from Bangkok to London Heathrow Airport by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly return from Bangkok to Heathrow. Price data was last updated on 20 December 2025.

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

Weekly flight availability from Bangkok to London Heathrow Airport

Explore weekly flight availability from Bangkok 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 21 December 2025.

The most flights from TH1 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 much does it cost for a return flight from Bangkok to London Heathrow Airport?

How often are flights from Bangkok to London delayed?

About 14% of weekly flights between Bangkok and London have experienced delays in the past year, with the average delay time being 89 minutes.

What is the most punctual flight time for Bangkok 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?

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

Which airline has the best punctuality record on Bangkok to London 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 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 21 December 2025.
Get a feel of what it's like to fly with EVA Air, Emirates, andThai Airways from Bangkok to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,298 reviews
Check prices

Overall

8.5

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
EVA Air
8.5
Very Good
1,298 reviews
EVA Air
8.5
Very Good
1,298 reviews
Check prices

Overall

8.5

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Emirates
8.1
Very Good
3,440 reviews
EVA Air
8.5
Very Good
1,298 reviews
Check prices

Overall

8.5

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Thai Airways
7.8
Good
369 reviews
EVA Air
8.5
Very Good
1,298 reviews
Check prices

Overall

8.5

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
เอทิฮัดแอร์เวย์
7.4
Good
1,336 reviews
EVA Air
8.5
Very Good
1,298 reviews
Check prices

Overall

8.5

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
บริติชแอร์เวย์
6.7
Okay
7,602 reviews
EVA Air
8.5
Very Good
1,298 reviews
Check prices

Overall

8.5

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Related info for your journey

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

    There are many flights that can get you from Bangkok to London Heathrow Airport in 18h. Fly via เอทิฮัดแอร์เวย์, ซาอุเดียแอร์ไลน์, or Cathay Pacific to get the fastest option. Bangkok and London Heathrow Airport are separated by a distance of 9571 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Bangkok to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Bangkok to London Heathrow Airport return from ฿12,641. Other airlines that can offer you cheap pricing are คูเวตแอร์เวย์, from ฿13,332, and สวิส อินเตอร์เนชั่นแนล แอร์ไลน์, from ฿14,104. เอทิฮัดแอร์เวย์ is currently priced 60% below the average price you’ll pay for this route.

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

    The cheapet airlines for a one-way flight from Bangkok to London Heathrow Airport are เอทิฮัดแอร์เวย์ (฿6,483), สแกนดอเนเวียนแอร์ไลน์ (฿6,810), and China Eastern (฿7,801).

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

    Before booking your flight to London Heathrow Airport from Bangkok, have a look at the most reliable airlines to get you to your destination on time: แอร์แคนาดา (97%), Thai Airways (92%), EVA Air( 89%).

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

    On average you can expect to pay ฿55,900 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is ฿14,372 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at ฿18,523.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of ฿20,595). Flying from Bangkok to London Heathrow Airport in January is currently the most expensive (average of ฿25,430). 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
Brentford
Waterlooville

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Bangkok to Heathrow

Discover the top 10 airlines that operate flights from Bangkok 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 17,341 searches. Data last updated 21 December 2025.
AirlineCheapestAverageFlexibilityOn-time
ลุฟท์ฮันซ่าCheapest฿19,653Average฿28,419FlexibilityNo cancel feeOn-time76%
Search ลุฟท์ฮันซ่า flights
China SouthernCheapest฿20,252Average฿22,468FlexibilityNo cancel feeOn-time69%
Search China Southern flights
FinnairCheapest฿20,540Average฿26,726FlexibilityNo cancel feeOn-time76%
Search Finnair flights
China EasternCheapest฿21,885Average฿25,103FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Malaysia AirlinesCheapest฿22,482Average฿24,837FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿22,863Average฿27,974FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
คูเวตแอร์เวย์Cheapest฿22,919Average฿25,538FlexibilityNo cancel feeOn-time64%
Search คูเวตแอร์เวย์ flights
เตอร์กิชแอร์ไลน์Cheapest฿23,600Average฿25,037FlexibilityNo cancel feeOn-time77%
Search เตอร์กิชแอร์ไลน์ flights
Cathay PacificCheapest฿24,855Average฿27,803FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์Cheapest฿24,868Average฿27,371FlexibilityNo cancel feeOn-time79%
Search สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ 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 Bangkok to Heathrow?

When you search for this flight from Bangkok to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to Heathrow from Bangkok by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Heathrow from Bangkok 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 Bangkok to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Bangkok to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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