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Cheap flights from Bangkok to London Heathrow Airport from £245

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — LHR
20 Jul — 27 Jul1
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 Thursday or Monday and return on a Tuesday

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 15 July 2025.

Round-trip from

£572

One-way from

£245

Popular in

April

Cheapest in

March

Average price

£764
China Southern
  • China Southern
  • 28/10-11/11
  • 3 total stops
  • 54h 00m total
  • Bangkok to London
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Hainan Airlines
  • Hainan Airlines
  • 7/9
  • 2 total stops
  • 24h 00m total
  • Bangkok to London
Search Deals
High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 0% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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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 15 July 2025.

Tue 28/1002:10BKK - LHR
1 stop23h 05mChina Southern
Tue 11/1121:30LHR - BKK
2 stops30h 55mChina Southern
Deal found 13/7£572
Wed 1/1019:40BKK - LHR
1 stop26h 55mMultiple Airlines
Sat 4/1020:50LHR - BKK
1 stop14h 55mMultiple Airlines
Deal found 14/7£573
Fri 26/1209:30BKK - LHR
1 stop15h 50mAir France
Wed 28/111:30LHR - BKK
1 stop14h 45mAir France
Deal found 14/7£574
Thu 11/911:05BKK - LHR
2 stops38h 25mHainan Airlines
Mon 15/922:00LHR - BKK
2 stops38h 15mHainan Airlines
Deal found 13/7£575
Sun 14/1201:30BKK - LHR
1 stop21h 25mAir China
Sat 27/1221:35LHR - BKK
1 stop31h 55mAir China
Deal found 13/7£576
Tue 22/702:10BKK - LHR
1 stop22h 30mChina Eastern
Mon 4/821:20LHR - BKK
1 stop17h 35mChina Eastern
Deal found 12/7£579
Tue 22/716:45DMK - LHR
2 stops32h 25mMultiple Airlines
Tue 12/820:35LHR - DMK
1 stop20h 15mMultiple Airlines
Deal found 13/7£591
Tue 21/1003:25BKK - LHR
1 stop17h 20mKuwait Airways
Wed 29/1011:45LHR - BKK
1 stop15h 20mKuwait Airways
Deal found 14/7£602
Mon 15/902:55BKK - LHR
1 stop15h 50mEtihad Airways
Tue 14/1021:45LHR - BKK
1 stop15h 05mEtihad Airways
Deal found 14/7£611

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 858,174 searches. Data last updated 15 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

Tue 28/10

02:10-18:15

1 stop23h 05m

London Heathrow

Tue 11/11

21:30-11:25

2 stops30h 55m

£572

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Wed 1/10

19:40-16:35

1 stop26h 55m

London Heathrow

Sat 4/10

20:50-17:45

1 stop14h 55m

£573

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 26/12

09:30-18:20

1 stop15h 50m

London Heathrow

Wed 28/1

11:30-09:15

1 stop14h 45m

£574

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Thu 11/9

11:05-19:30

2 stops38h 25m

London Heathrow

Mon 15/9

22:00-18:15

2 stops38h 15m

£575

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 14/12

01:30-15:55

1 stop21h 25m

London Heathrow

Sat 27/12

21:35-12:30

1 stop31h 55m

£576

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 28/7

19:10-18:40

1 stop29h 30m

London Heathrow

Wed 13/8

21:20-01:55

1 stop22h 35m

£579

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Thu 11/9

15:20-19:10

2 stops33h 50m

London Heathrow

Mon 15/9

08:40-13:10

3 stops22h 30m

£596

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 21/10

03:25-14:45

1 stop17h 20m

London Heathrow

Wed 29/10

11:45-10:05

1 stop15h 20m

£602

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Mon 15/9

02:55-12:45

1 stop15h 50m

London Heathrow

Tue 14/10

21:45-18:50

1 stop15h 05m

£611

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sun 7/9

01:30-19:30

2 stops24h 00m

£245

Flights are sorted by cheapest return flights first.

Deals found on 12/7

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 11 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, January is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of £112). Flying from Bangkok to London Heathrow Airport in August is currently the most expensive (average of £164). 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 15 July 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 24% 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 13 July 2025.

Travellers seeking maximum savings on their Bangkok to London Heathrow Airport flight should consider departing on Saturday 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 15 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).

How much does it cost for a return flight from Bangkok to London Heathrow Airport?

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 July 2025.
Check out reviews from past customers who have flown with Hainan Airlines, China Southern, andAir France from Bangkok 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.
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Crew

8.9

Boarding

8.6

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

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.
Hainan Airlines
8.2
Very Good
41 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Crew

8.9

Boarding

8.6

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

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
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Crew

8.9

Boarding

8.6

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

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.
Air France
7.5
Good
1,466 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Crew

8.9

Boarding

8.6

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

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
195 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Crew

8.9

Boarding

8.6

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

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.
Etihad Airways
7.4
Good
1,222 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Crew

8.9

Boarding

8.6

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

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?

    Our cheapest airline available from Bangkok to London Heathrow Airport is China Southern. Our recent data shows that you can find tickets from as low as £572 on this airline. Additional options worth looking into are Air France and Hainan Airlines, starting at £574 and £575 round-trip. These flights start at 24% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Hainan Airlines, with whom users have recently found tickets for as low as £245. However, be on the lookout for offers from Malaysia Airlines and China Southern, as they are both options that can get you from Bangkok to London Heathrow Airport for a low price.

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

    No one likes to see their flight delayed. When booking a flight from Bangkok to London Heathrow Airport consider choosing EVA Air (58%), Thai Airways (58%) or Air Canada (58%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £1,189 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is £288 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at £475.

  • 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, January is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of £112). Flying from Bangkok to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Hounslow
Deal
Northampton
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Hayes
Ipswich
Southend-on-Sea
Folkestone
Watford
Winchester
Swindon
Maidstone

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 858,174 searches. Data last updated 15 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£237Average£488FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest£347Average£655FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Air ChinaCheapest£449Average£530FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£498Average£552FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Kuwait AirwaysCheapest£510Average£586FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Turkish AirlinesCheapest£554Average£583FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Austrian AirlinesCheapest£556Average£672FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
SWISSCheapest£557Average£655FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Malaysia AirlinesCheapest£558Average£584FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Vietnam AirlinesCheapest£572Average£592FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

Fly with Cheapflights

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Bangkok.

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

Yes, we can. To see specific flights from Bangkok to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from Bangkok to Heathrow 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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