Cheap flights from Bangkok to London Heathrow Airport from ฿8,344

BKK — LHR
8 Dec — 15 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Bangkok to London Heathrow are usually found in February or October, booked 80 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

Cheap flight deals from Bangkok to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Heathrow

Thu 17/1219:30 -
1 stop29h 15m
Thu 14/122:30 -
1 stop29h 40m
Deal found 3/11฿22,721
Mon 16/1108:30 -
1 stop16h 40m
Sun 29/1121:10 -
1 stop21h 10m
Deal found 3/11฿22,788
Fri 13/1108:30 -
1 stop16h 30m
Sun 15/1121:10 -
1 stop31h 00m
Deal found 3/11฿22,922
Mon 7/1202:55 -
1 stop16h 10m
Wed 6/121:10 -
1 stop21h 10m
Deal found 3/11฿22,989
Fri 4/1202:55 -
1 stop16h 10m
Fri 8/121:10 -
1 stop31h 00m
Deal found 7/11฿23,023
Sat 19/1214:40 -
1 stop30h 50m
Mon 4/121:10 -
1 stop36h 55m
Deal found 5/11฿23,090
Fri 6/1112:35 -
1 stop16h 05m
Fri 20/1112:30 -
1 stop21h 05m
Deal found 4/11฿23,123
Wed 9/1202:55 -
1 stop16h 10m
Sat 9/121:10 -
1 stop21h 10m
Deal found 3/11฿23,157
Fri 27/1118:10 -
1 stop32h 00m
Wed 2/1221:05 -
1 stop30h 00m
Deal found 4/11฿23,190
Sat 7/1112:35 -
1 stop27h 45m
Fri 20/1112:30 -
1 stop21h 05m
Deal found 4/11฿23,224
Thu 17/1202:55 -
1 stop18h 35m
Mon 4/121:10 -
1 stop31h 00m
Deal found 3/11฿23,257
Sun 20/1202:55 -
1 stop18h 35m
Mon 4/121:10 -
1 stop36h 55m
Deal found 7/11฿23,291

Find flight deals from Bangkok to Heathrow

Round-trip from

฿22,688

One-way from

฿8,344

Popular in

August

Cheapest in

February

Average price

฿35,121
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 20/12-20/1
  • 2 total stops
  • 48h 35m total
  • Bangkok to London
สแกนดอเนเวียนแอร์ไลน์
  • สแกนดอเนเวียนแอร์ไลน์
  • 16/11-31/12
  • 1 total stop
  • 16h 05m total
  • Bangkok to London
Highest demand for flights based on searches. 4% potential increase in price (฿52,371 potential increase over avg. return price).
Cheapest flight prices on average. 0% potential price decrease (฿8,353 potential savings vs. average return price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Bangkok to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Fri 13/11

12:35-14:35

2 stops33h 00m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿9,517

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Sat 14/11

12:35-12:55

2 stops31h 20m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿9,618

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Thu 10/12

08:30-21:05

2 stops19h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿13,740

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Sat 14/11

09:00-18:25

1 stop16h 25m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿14,779

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Thu 14/1

02:55-12:05

1 stop16h 10m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿15,617
Fastest return journey

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Sat 6/2

13:20-19:35

Nonstop13h 15m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿17,661

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Fri 1/1

12:15-09:40

1 stop28h 25m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿18,432

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Wed 9/12

18:00-19:10

2 stops56h 10m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿19,806

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Thu 31/12

19:10-05:55

1 stop17h 45m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿23,023

BangkokLondon

BKK Bangkok Suvarnabhumi - LHR London Heathrow

BKKLHR

Bangkok Suvarnabhumi

Thu 31/12

02:20-19:10

1 stop23h 50m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿26,106

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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

Cheapflights Insights

Everything you need to know about your flight from Bangkok to London Heathrow Airport

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

Currently, February is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of ฿33,445). Flying from Bangkok to London Heathrow Airport in August is currently the most expensive (average of ฿38,472). 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?

When flying from Bangkok to London Heathrow Airport, 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 Bangkok to London Heathrow Airport

The most flights from TH1 to LHR are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

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

Airfare is below average for this route at the moment.
Bangkok to London Heathrow Airport flights typically cost between ฿28,619 and ฿38,740 in December.
The cheapest return price found within the last 5 days was ฿22,989 on Multiple Airlines (7 Dec–6 Jan).

How often are flights from Bangkok to London delayed?

About 11% of weekly flights between Bangkok and London have experienced delays in the past year, with the average delay time being 97 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 Thursday 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, Thai Airways have had the lowest number of delays on this route, with just 10% of flights being delayed.

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

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 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with EVA Air,Emirates, andโอมานแอร์ 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.

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.0

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

Related info for your journey

  • 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 16h 05m. Fly via Shenzhen Airlines, เอทิฮัดแอร์เวย์, or สแกนดอเนเวียนแอร์ไลน์ 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 ฿9,853. Other airlines that can offer you cheap pricing are Finnair, from ฿19,042, and โอมานแอร์, from ฿21,987. เอทิฮัดแอร์เวย์ is currently priced 72% 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 สแกนดอเนเวียนแอร์ไลน์ (฿6,508), เอทิฮัดแอร์เวย์ (฿6,920), and ไห่หนานแอร์ไลน์ (฿7,549).

  • 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 (71%), TAP ปอร์ตูกัล (71%), Thai Airways( 62%).

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

    On average you can expect to pay ฿30,734 for a flight from Bangkok to London Heathrow Airport. The cheapest flight overall is ฿15,781 while the most popular route, (Bangkok Suvarnabhumi - London Heathrow) is currently priced at ฿21,917.

  • 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, February is the cheapest month in which you can book a flight from Bangkok to London Heathrow Airport (average of ฿33,445). Flying from Bangkok to London Heathrow Airport in August is currently the most expensive (average of ฿38,472). 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

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Bangkok to Heathrow

AirlineCheapestAverageFlexibilityOn-time
เอทิฮัดแอร์เวย์Cheapest฿9,853Average฿28,432FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
FinnairCheapest฿19,042Average฿31,260FlexibilityNo cancel feeOn-time76%
Search Finnair flights
โอมานแอร์Cheapest฿21,987Average฿26,956FlexibilityNo cancel feeOn-time76%
Search โอมานแอร์ flights
Qatar AirwaysCheapest฿28,814Average฿31,960FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿30,990Average฿32,726FlexibilityNo cancel feeOn-time75%
Search Emirates flights
EVA AirCheapest฿33,751Average฿38,218FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Thai AirwaysCheapest฿35,583Average฿41,986FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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.