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฿5,675+ Cheap flights from London Heathrow Airport

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — BKK
20 Jul — 27 Jul1
1 adult

What to know about flights from Heathrow

Discover essential information about flights departing from Heathrow, including flight schedules, destinations, airlines operating at the Heathrow airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 15 July 2025.

Cheapest airline

Air India

Good round-trip deal

฿13,505 or less

Good one-way deal

฿3,338 or less
On average, Air India currently has the cheapest one-way flight from London Heathrow (avg. price of ฿27,747).
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Price to beat on a round-trip flight from London Heathrow.
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Price to beat on a one-way flight from London Heathrow.
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Find flights from Heathrow

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

Sat 20/912:30LHR - BKK
1 stop19h 05mAir India
Sat 11/1020:50BKK - LHR
1 stop19h 25mAir India
Deal found 13/7฿22,051
Wed 5/1122:00LHR - BKK
1 stop31h 55mChina Southern
Sat 15/1102:10BKK - LHR
1 stop23h 05mChina Southern
Deal found 14/7฿22,084
Tue 18/1121:00LHR - BKK
3 stops34h 55mChina Eastern
Wed 3/1201:55BKK - LHR
1 stop22h 35mChina Eastern
Deal found 13/7฿22,116
Fri 29/822:05LHR - BKK
1 stop31h 05mMultiple Airlines
Sun 14/919:20BKK - LHR
2 stops30h 10mMultiple Airlines
Deal found 13/7฿22,149
Tue 9/906:30LHR - BKK
1 stop21h 00mเคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
Tue 7/1012:05BKK - LHR
1 stop26h 55mเคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
Deal found 15/7฿22,246
Fri 31/1021:10LHR - BKK
1 stop31h 00mShenzhen Airlines
Thu 27/1112:10BKK - LHR
1 stop38h 00mShenzhen Airlines
Deal found 15/7฿22,278
Thu 25/920:50LHR - BKK
1 stop14h 55mโอมานแอร์
Fri 24/1009:00BKK - LHR
1 stop16h 10mโอมานแอร์
Deal found 14/7฿22,343
Sun 28/911:45LHR - BKK
1 stop16h 35mคูเวตแอร์เวย์
Tue 21/1003:25BKK - LHR
1 stop17h 20mคูเวตแอร์เวย์
Deal found 15/7฿22,376
Sat 1/1121:35LHR - BKK
1 stop36h 05mAir China
Mon 1/1213:50BKK - LHR
2 stops35h 00mAir China
Deal found 13/7฿22,732
Tue 2/922:10LHR - BKK
1 stop20h 00mซาอุเดียแอร์ไลน์
Mon 15/901:50BKK - LHR
1 stop24h 40mซาอุเดียแอร์ไลน์
Deal found 15/7฿22,765
Tue 26/808:45LHR - BKK
1 stop19h 00mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Wed 17/912:35BKK - LHR
1 stop25h 20mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 14/7฿22,992
Thu 21/806:55LHR - BKK
2 stops25h 55mลุฟท์ฮันซ่า
Tue 16/923:00BKK - LHR
1 stop24h 05mลุฟท์ฮันซ่า
Deal found 14/7฿23,089

Find flights from Heathrow within your budget

Find flights departing from Heathrow that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 15 July 2025. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Suvarnabhumi

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 20/9

12:30-13:35

1 stop19h 05m

Bangkok Suvarnabhumi

Sat 11/10

20:50-10:15

1 stop19h 25m

฿22,051

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 5/11

22:00-12:55

1 stop31h 55m

Bangkok Suvarnabhumi

Sat 15/11

02:10-18:15

1 stop23h 05m

฿22,084

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 18/11

21:00-14:55

3 stops34h 55m

Bangkok Suvarnabhumi

Wed 3/12

01:55-17:30

1 stop22h 35m

฿22,116

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 29/8

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Sun 14/9

19:20-19:30

2 stops30h 10m

฿22,149

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 24/8

07:25-14:10

1 stop24h 45m

Bangkok Suvarnabhumi

Tue 16/9

23:00-17:05

1 stop24h 05m

฿22,246

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 31/10

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Sat 15/11

19:30-19:10

1 stop30h 40m

฿22,278

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 25/9

20:50-17:45

1 stop14h 55m

Bangkok Suvarnabhumi

Fri 24/10

09:00-19:10

1 stop16h 10m

฿22,343

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 22/8

22:00-10:00

1 stop30h 00m

Bangkok Suvarnabhumi

Tue 16/9

19:20-19:30

1 stop30h 10m

฿22,376

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 31/10

17:40-18:05

1 stop17h 25m

Bangkok Suvarnabhumi

Mon 17/11

17:55-19:40

1 stop32h 45m

฿22,862

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 26/8

08:45-09:45

1 stop19h 00m

Bangkok Suvarnabhumi

Wed 17/9

12:35-07:55

1 stop25h 20m

฿22,992

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Showing 1-10 of 60 results
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Best time to book a flight from Heathrow

Have a flexible travel schedule? Discover the best time to fly from 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.

Travel insights for flights from Heathrow

Get recent, data-driven insights about flights from Heathrow including ideal travel times, pricing trends, and more.

When is the best time to book a flight from London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Heathrow to Suvarnabhumi. Price data was last updated on 11 July 2025.

Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport (average of ฿17,349). Flying from London Heathrow Airport in July will prove the most costly (average of ฿25,456). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from London Heathrow Airport?

Many airlines operate round-trip flights from London Heathrow Airport: Thai Airways, EVA Air, Qatar Airways, เอทิฮัดแอร์เวย์, Air China. These airlines fly to the following popular destinations: Bangkok.

Thai Airways
Thai Airways
From ฿872
EVA Air
EVA Air
From ฿928
Qatar Airways
Qatar Airways
From ฿736
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿695

What are popular destinations to fly to from London Heathrow Airport?

If you’re flying from London Heathrow Airport, these routes are more frequently taken by airlines New York (2,334 flights per day), Paris (793 flights per day) and Chicago (734 flights per day).

Muscat Seeb
Muscat Seeb
From ฿381
Abu Dhabi Zayed Intl
Abu Dhabi Zayed Intl
From ฿482
Doha Hamad Intl
Doha Hamad Intl
From ฿520

What is the cheapest place to fly to from London Heathrow Airport?

The cheapest city to fly to from London Heathrow Airport is Paris, with prices starting at ฿2,401. Explore other affordable destinations below.

Paris
Paris
From ฿74
Stockholm
Stockholm
From ฿103
Sofia
Sofia
From ฿179

Airline reviews for flights from Heathrow

Get insights into the airlines that provide service from Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Heathrow. In the last 7 days, Cheapflights users made a total of 17,341 searches.
Read reviews from past customers who have flown ไห่หนานแอร์ไลน์, เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์, andChina Southern from London Heathrow Airport. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
Check prices

Overall

8.2

Entertainment

7.6

Comfort

8.1

Food

8.6

Crew

8.9

Boarding

8.6

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
41 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
Check prices

Overall

8.2

Entertainment

7.6

Comfort

8.1

Food

8.6

Crew

8.9

Boarding

8.6

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.
เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
7.8
Good
1,372 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
Check prices

Overall

8.2

Entertainment

7.6

Comfort

8.1

Food

8.6

Crew

8.9

Boarding

8.6

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
41 reviews
Check prices

Overall

8.2

Entertainment

7.6

Comfort

8.1

Food

8.6

Crew

8.9

Boarding

8.6

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.
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
7.5
Good
1,658 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
Check prices

Overall

8.2

Entertainment

7.6

Comfort

8.1

Food

8.6

Crew

8.9

Boarding

8.6

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.

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Alternate flight departure points to Heathrow

Consider leaving from one of these other departure points that are located a short distance from Heathrow. Flight origins were last updated on 15 July 2025.
Flights from London City
Flights from Gatwick
Flights from Luton
Flights from Stansted
Flights from Manchester
Flights from Newcastle upon Tyne
Flights from Birmingham
Flights from Edinburgh
Flights from Norwich
Flights from East Midlands
Flights from Liverpool
Flights from Southampton

Related info for your journey

Access useful and relevant information related to your journey from Heathrow. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 15 July 2025.

  • What are the most popular destinations to fly to from London Heathrow Airport?

    The most selected flight destinations from London Heathrow Airport for the current month are Bangkok Suvarnabhumi Airport, Bengaluru, Ahmedabad. While Bangkok Suvarnabhumi Airport, Ahmedabad, Bengaluru are the top choices made by travellers year-round.

  • What is the cheapest flight from London Heathrow Airport to anywhere?

    Users have flown out of London Heathrow Airport for as low as ฿2,401 to Paris Orly Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿24,945 to fly from London Heathrow Airport.

  • What are the cheapest airlines flying from London Heathrow Airport to anywhere?

    According to our data, users have found Air India, China Eastern, and Air China to have the cheapest round-trip prices from London Heathrow Airport. Some of the destinations and prices are as follows: Air India flights from London Heathrow Airport to Bangkok Suvarnabhumi (฿17,043). China Eastern flights from London Heathrow Airport to Bangkok Suvarnabhumi (฿17,721). Air China flights from London Heathrow Airport to Bangkok Suvarnabhumi (฿18,703).

  • What is the cheapest premium economy flight from London Heathrow Airport?

    If you're looking for an elevated level of comfort for your next adventure, premium economy flights from London Heathrow Airport may suit your needs. The cheapest premium economy flights from London Heathrow Airport are:
    Fly London Heathrow to Amsterdam from ฿46,609
    Fly London Heathrow to Paris Charles de Gaulle Airport from ฿46,916
    Fly London Heathrow to Helsinki from ฿48,315
    Fly London Heathrow to New Delhi from ฿52,398

  • What is the cheapest first class flight from London Heathrow Airport?

    If you’re looking to fly first-class from London Heathrow Airport to anywhere, put Abu Dhabi on your list as prices start at ฿246,381 for this destination.

  • What is the cheapest month to fly from London Heathrow Airport?

    At the present moment the cheapest month to fly from London Heathrow Airport is currently May; with July being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from London Heathrow Airport?

    Here are some of the cheapest flight destinations from London Heathrow Airport:
    Fly from London to Bangkok from ฿14,625
    Fly from London to Phuket City from ฿20,365
    Fly from London to Chiang Mai from ฿23,284
    Fly from London to Ko Samui from ฿26,689

  • How does Cheapflights help users find flights from Heathrow?

    Deals for flights from Heathrow are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

    Cheapflights helps you find that perfect flight from Heathrow 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 Heathrow with no change fees?

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

    Yes! Start tracking prices for flights from Heathrow today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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How does Cheapflights help users find flights from Heathrow?

Deals for flights from Heathrow are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight from Heathrow 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 Heathrow with no change fees?

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

Yes! Start tracking prices for flights from Heathrow today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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