Find flights
Deals
When to book
Airlines
FAQs
Thailand (ภาษาไทย)
ภาษาไทย

Cheap flights from Bangkok to London Heathrow Airport from ฿10,867

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
1 Aug — 8 Aug1
1 adult

Cheapflights Tip: The best prices from Bangkok to London Heathrow are usually found in March or October, booked 70 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 27 July 2025.

Round-trip from

฿24,967

One-way from

฿10,867

Popular in

April

Cheapest in

March

Average price

฿33,311
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 8/9-12/9
  • 3 total stops
  • 58h 20m total
  • Bangkok to London
Search Deals
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 4/9
  • 2 total stops
  • 30h 10m total
  • Bangkok to London
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 0% potential price decrease (฿7,445 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Bangkok to Heathrow

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 27 July 2025.

Mon 8/919:30BKK - LHR
1 stop28h 20mMultiple Airlines
Fri 12/922:00LHR - BKK
2 stops30h 00mMultiple Airlines
Deal found 25/7฿24,967
Wed 6/802:10BKK - LHR
1 stop22h 30mChina Eastern
Sun 10/821:20LHR - BKK
1 stop17h 35mChina Eastern
Deal found 25/7฿25,000
Thu 25/1202:10BKK - LHR
1 stop23h 05mChina Southern
Sat 3/121:30LHR - BKK
2 stops29h 40mChina Southern
Deal found 26/7฿25,064
Wed 1/1021:00BKK - LHR
2 stops39h 20mรอยัลบรูไนแอร์ไลน์
Wed 8/1017:15LHR - BKK
2 stops37h 25mรอยัลบรูไนแอร์ไลน์
Deal found 26/7฿25,291
Sat 13/1215:20BKK - LHR
1 stop23h 10mซาอุเดียแอร์ไลน์
Wed 31/1210:00LHR - BKK
1 stop20h 40mซาอุเดียแอร์ไลน์
Deal found 26/7฿25,517
Sun 14/1201:30BKK - LHR
1 stop23h 20mAir China
Tue 30/1221:35LHR - BKK
1 stop36h 05mAir China
Deal found 25/7฿26,584
Fri 8/820:25DMK - LHR
2 stops30h 40mMultiple Airlines
Fri 15/812:30LHR - DMK
2 stops33h 50mMultiple Airlines
Deal found 25/7฿28,104

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 27 July 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 8/9

19:30-17:50

1 stop28h 20m

London Heathrow

Fri 12/9

22:00-10:00

2 stops30h 00m

฿24,967

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 6/8

02:10-18:40

1 stop22h 30m

London Heathrow

Sun 10/8

21:20-20:55

1 stop17h 35m

฿25,000

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 25/12

19:55-18:15

1 stop29h 20m

London Heathrow

Mon 5/1

21:30-01:05

2 stops20h 35m

฿25,064

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 1/10

21:00-06:20

2 stops39h 20m

London Heathrow

Wed 8/10

17:15-12:40

2 stops37h 25m

฿25,291

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 23/1

09:30-18:20

1 stop15h 50m

London Heathrow

Fri 30/1

08:55-07:30

1 stop15h 35m

฿25,388

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 13/12

15:20-07:30

1 stop23h 10m

London Heathrow

Wed 31/12

10:00-13:40

1 stop20h 40m

฿25,517

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 14/12

01:30-15:55

1 stop21h 25m

London Heathrow

Thu 1/1

21:35-12:30

1 stop31h 55m

฿26,584

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 21/9

02:55-15:15

1 stop18h 20m

London Heathrow

Wed 12/11

20:55-23:20

1 stop19h 25m

฿26,778

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Fri 8/8

20:25-21:05

2 stops30h 40m

London Heathrow

Fri 15/8

12:30-04:20

2 stops33h 50m

฿28,104

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 4/9

19:20-19:30

2 stops30h 10m

฿10,867

Flights are sorted by cheapest return flights first.

Deals found on 26/7

Showing 1-10 of 19 results
1
2

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 25 July 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 70 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, December is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of ฿810). Flying from Bangkok to London Heathrow Airport in July is currently the most expensive (average of ฿1,025). 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 27 July 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 32% on flights from Bangkok to London Heathrow Airport by exploring options for tickets in the afternoon.

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 July 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 evenings 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 27 July 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).

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 27 July 2025.
Get a feel of what it's like to fly with ไห่หนานแอร์ไลน์, Singapore Airlines, andChina Southern 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.
ไห่หนานแอร์ไลน์
8.2
Very Good
42 reviews
Check prices

Comfort

8.0

Food

8.5

Entertainment

7.5

Boarding

8.5

Overall

8.2

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
ไห่หนานแอร์ไลน์
8.2
Very Good
42 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
42 reviews
Check prices

Comfort

8.0

Food

8.5

Entertainment

7.5

Boarding

8.5

Overall

8.2

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Singapore Airlines
8.1
Very Good
1,334 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
42 reviews
Check prices

Comfort

8.0

Food

8.5

Entertainment

7.5

Boarding

8.5

Overall

8.2

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
China Southern
7.6
Good
103 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
42 reviews
Check prices

Comfort

8.0

Food

8.5

Entertainment

7.5

Boarding

8.5

Overall

8.2

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Vietnam Airlines
7.5
Good
197 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
42 reviews
Check prices

Comfort

8.0

Food

8.5

Entertainment

7.5

Boarding

8.5

Overall

8.2

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
ซาอุเดียแอร์ไลน์
7.4
Good
626 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
42 reviews
Check prices

Comfort

8.0

Food

8.5

Entertainment

7.5

Boarding

8.5

Overall

8.2

Crew

8.9

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.

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.

  • 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 ฿25,000. Other airlines that can offer you cheap pricing are China Southern, from ฿25,064, and รอยัลบรูไนแอร์ไลน์, from ฿25,291. China Eastern is currently priced 24% 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 ไห่หนานแอร์ไลน์ (฿10,867), China Eastern (฿10,899), and Singapore Airlines (฿10,964).

  • 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 (74%), Thai Airways (70%), EVA Air( 68%).

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

    On average you can expect to pay ฿57,847 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is ฿13,100 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at ฿20,957.

  • 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, December is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of ฿810). Flying from Bangkok to London Heathrow Airport in July is currently the most expensive (average of ฿1,025). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 27 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest฿19,858Average฿22,943FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest฿21,477Average฿23,515FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest฿22,458Average฿28,968FlexibilityNo cancel feeOn-time67%
Search Air China flights
เอทิฮัดแอร์เวย์Cheapest฿23,238Average฿29,792FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
FinnairCheapest฿23,559Average฿29,364FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Malaysia AirlinesCheapest฿23,798Average฿25,585FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
ลุฟท์ฮันซ่าCheapest฿24,108Average฿28,056FlexibilityNo cancel feeOn-time76%
Search ลุฟท์ฮันซ่า flights
เตอร์กิชแอร์ไลน์Cheapest฿24,311Average฿25,955FlexibilityNo cancel feeOn-time77%
Search เตอร์กิชแอร์ไลน์ flights
คูเวตแอร์เวย์Cheapest฿25,432Average฿26,739FlexibilityNo cancel feeOn-time64%
Search คูเวตแอร์เวย์ flights
Cathay PacificCheapest฿25,604Average฿28,641FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.