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฿8,689+ Cheap flights to Heathrow

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Find flight deals to Heathrow Airport

Enter your travel dates to find the best prices.

Cheapest flights to Heathrow Airport
Explore the most affordable flight options available to Heathrow Airport. Find the lowest fares based on data from user searches, with prices last updated on 15 October 2025.

Mon 20/1018:05BKK - LHR
1 stop30h 55mChina Southern
Mon 27/1021:30LHR - BKK
2 stops30h 40mChina Southern
Deal found 14/10฿22,181
Thu 13/1101:35BKK - LHR
2 stops23h 00mไห่หนานแอร์ไลน์
Fri 21/1121:00LHR - BKK
2 stops30h 05mไห่หนานแอร์ไลน์
Deal found 14/10฿22,246
Sat 8/1112:45BKK - LHR
1 stop27h 35mMultiple Airlines
Fri 21/1121:00LHR - BKK
1 stop38h 05mMultiple Airlines
Deal found 14/10฿22,344
Tue 21/1021:55BKK - LHR
1 stop26h 45mMultiple Airlines
Sun 26/1021:15LHR - BKK
1 stop29h 50mMultiple Airlines
Deal found 14/10฿22,377
Sun 30/1110:10BKK - LHR
1 stop16h 10mMultiple Airlines
Sun 7/1221:15LHR - BKK
1 stop20h 05mMultiple Airlines
Deal found 14/10฿22,409
Sat 18/1019:00BKK - LHR
1 stop30h 00mChina Southern
Tue 11/1121:30LHR - BKK
2 stops31h 10mChina Southern
Deal found 13/10฿22,442
Wed 22/1019:00BKK - LHR
1 stop30h 00mChina Southern
Thu 22/122:00LHR - BKK
1 stop17h 30mChina Southern
Deal found 12/10฿22,507
Tue 21/1016:25DMK - LHR
2 stops28h 50mMultiple Airlines
Sun 26/1021:05LHR - DMK
2 stops24h 20mMultiple Airlines
Deal found 14/10฿22,573
Sun 26/1019:55BKK - LHR
1 stop28h 35mMultiple Airlines
Mon 3/1121:10LHR - BKK
1 stop22h 05mMultiple Airlines
Deal found 12/10฿22,573
Sun 26/1011:10BKK - LHR
2 stops37h 45mไห่หนานแอร์ไลน์
Mon 3/1121:00LHR - BKK
2 stops30h 05mไห่หนานแอร์ไลน์
Deal found 12/10฿22,605
Tue 28/1019:55DMK - LHR
3 stops28h 35mMultiple Airlines
Tue 4/1122:15LHR - DMK
3 stops23h 10mMultiple Airlines
Deal found 13/10฿23,683

Flights to Heathrow in 2025

Find the latest flights to Heathrow in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 15 October 2025.

Return from

฿22,246

One-way from

฿8,657

Popular in

January

Cheapest in

November

Average price

฿29,727
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 13/11-21/11
  • 4 total stops
  • 53h 05m total
  • Bangkok to London
Search Deals
สแกนดอเนเวียนแอร์ไลน์
  • สแกนดอเนเวียนแอร์ไลน์
  • 5/11
  • 1 total stop
  • 19h 35m total
  • Bangkok to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (฿39,201 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (฿6,957 potential savings vs. average return price).
Search Deals
Average for return flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Locate flights to Heathrow that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 15 October 2025.
Use the filters below to find and compare flights to London Heathrow Airport that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 28/10

19:55-17:30

3 stops28h 35m

London Heathrow

Tue 4/11

22:15-04:25

3 stops23h 10m

฿23,683

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Sat 8/11

22:00-17:55

2 stops26h 55m

London Heathrow

Fri 21/11

21:10-05:25

1 stop25h 15m

฿24,271

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Fri 26/12

09:25-18:10

1 stop15h 45m

London Heathrow

Thu 15/1

19:20-23:20

1 stop21h 00m

฿25,382

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Sat 1/11

17:15-19:20

2 stops33h 05m

London Heathrow

Sat 8/11

21:05-04:25

2 stops24h 20m

฿25,578

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 16/12

03:15-19:10

1 stop22h 55m

London Heathrow

Fri 26/12

21:10-02:15

1 stop22h 05m

฿26,264

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Sat 25/10

08:05-20:35

1 stop18h 30m

London Heathrow

Thu 6/11

17:50-18:15

1 stop17h 25m

฿26,395

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Tue 16/12

10:20-16:25

2 stops37h 05m

London Heathrow

Sat 3/1

21:10-01:50

1 stop21h 40m

฿26,623

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Sun 21/12

23:45-18:55

2 stops26h 10m

London Heathrow

Mon 5/1

21:05-04:25

2 stops24h 20m

฿26,885

BangkokLondon

BKK - LHR

BKKLHR

Bangkok Suvarnabhumi

Tue 17/2

01:55-17:30

1 stop22h 35m

London Heathrow

Sun 22/2

21:00-00:55

1 stop20h 55m

฿27,407

BangkokLondon

DMK - LHR

DMKLHR

Bangkok Don Mueang Intl

Thu 18/12

20:55-11:05

1 stop21h 10m

London Heathrow

Fri 16/1

21:05-06:35

2 stops26h 30m

฿28,387

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 41 results
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Best time to book a flight to Heathrow

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

When is the best time to book a flight to Heathrow?

Use this chart to determine the optimal time to book a return flight from Bangkok to Heathrow. Price data was last updated on 10 October 2025.

The best time to book flights to Heathrow is 27 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.

How long is the flight to Heathrow?

On average, a flight from Bangkok to Heathrow takes 16 hours 20 minutes. Flights to Heathrow from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Heathrow?

Use this chart to determine the cheapest time to fly return from Bangkok to Heathrow. Price data was last updated on 12 October 2025.

Users looking for the lowest fares to Heathrow should consider flying on Tuesday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at midday, when prices are usually at their highest.

Weekly flight availability to Heathrow

The most flights from Bangkok to Heathrow 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).

What are the most popular airlines that fly to Heathrow?

The most popular airlines flying from Bangkok to Heathrow are EVA Air, Thai Airways and Emirates.

EVA Air
EVA Air
From ฿31,302
Thai Airways
Thai Airways
From ฿33,062
Emirates
Emirates
From ฿28,103
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿25,469

What are the cheapest airlines that fly to Heathrow?

The cheapest airlines flying from Bangkok to Heathrow are China Southern, China Eastern and Air China.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Heathrow ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit Heathrow when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Heathrow, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 October 2025.
Read reviews from past customers who have flown EVA Air, Emirates, andThai Airways to the United Kingdom. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Entertainment

8.0

Overall

8.4

Food

8.0

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very Good
1,250 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Entertainment

8.0

Overall

8.4

Food

8.0

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Emirates
8.1
Very Good
3,374 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Entertainment

8.0

Overall

8.4

Food

8.0

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Thai Airways
7.8
Good
358 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Entertainment

8.0

Overall

8.4

Food

8.0

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
เอทิฮัดแอร์เวย์
7.4
Good
1,279 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Entertainment

8.0

Overall

8.4

Food

8.0

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
บริติชแอร์เวย์
6.7
Okay
7,456 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Entertainment

8.0

Overall

8.4

Food

8.0

Crew

8.6

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

FAQs about flying to Heathrow

  • Can I find cheaper flights to Heathrow if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Heathrow on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Heathrow?

    Based on reviews from Cheapflights users, China Southern is rated the highest out of the airlines that fly to Heathrow.

  • What is the cheapest airport to fly to in Heathrow?

    London Heathrow is currently the cheapest airport to fly to in Heathrow. One-way flights to London Heathrow typically cost ฿2,507, while return flights cost around ฿3,750.

  • How much is a return flight to Heathrow?

    A return flight to Heathrow will typically cost around ฿179, however they can be found for as little as ฿115.

  • Where does the fastest flight to Heathrow depart from?

    For those looking to save time traveling to Heathrow, Bangkok offers the quickest one-way flight (13 hours 0 minutes).

  • Does London Heathrow have rental cars?

    Yes. Those touching down at London Heathrow can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow T2 & T3 is the closest property to London Heathrow (0.0 km away from London Heathrow).

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

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