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฿5,801+ 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 13/3. 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
12 Mar — 19 Mar1
1 adult
1 adult, Economy, 0 bags

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 10 February 2026.

Cheapest airline

บริติชแอร์เวย์

Good round-trip deal

฿8,521 or less

Good one-way deal

฿3,045 or less
On average, บริติชแอร์เวย์ currently has the cheapest one-way flight from London Heathrow (avg. price of ฿27,700).
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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

Enter your travel dates to find the best prices.

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 10 February 2026.

Mon 16/320:25
LHR
-
CNX
1 stop18h 25m
Air China
Mon 23/323:05
CNX
-
LHR
1 stop23h 50m
Air China
Deal found 9/2฿15,874
Wed 11/317:40
LHR
-
CNX
1 stop21h 10m
Air China
Wed 25/323:05
CNX
-
LHR
1 stop25h 50m
Air China
Deal found 9/2฿15,936
Sun 8/320:25
LHR
-
CNX
1 stop18h 25m
Air China
Sun 15/323:05
CNX
-
LHR
1 stop23h 50m
Air China
Deal found 8/2฿15,999
Tue 10/317:40
LHR
-
CNX
1 stop21h 10m
Air China
Tue 17/323:05
CNX
-
LHR
1 stop25h 50m
Air China
Deal found 8/2฿16,030
Wed 11/320:25
LHR
-
CNX
1 stop18h 25m
Air China
Wed 18/323:05
CNX
-
LHR
1 stop25h 50m
Air China
Deal found 9/2฿16,061
Thu 12/317:40
LHR
-
CNX
1 stop21h 10m
Air China
Thu 19/323:05
CNX
-
LHR
1 stop23h 50m
Air China
Deal found 7/2฿16,248
Thu 12/320:25
LHR
-
CNX
1 stop18h 25m
Air China
Mon 16/323:05
CNX
-
LHR
1 stop23h 50m
Air China
Deal found 6/2฿16,685
Mon 18/522:40
LHR
-
CNX
1 stop17h 10m
Air China
Mon 15/623:05
CNX
-
LHR
1 stop27h 20m
Air China
Deal found 10/2฿16,872
Wed 4/321:00
LHR
-
BKK
1 stop20h 55m
China Eastern
Wed 18/319:05
BKK
-
LHR
1 stop29h 25m
China Eastern
Deal found 9/2฿17,090
Wed 4/321:00
LHR
-
BKK
1 stop24h 05m
China Eastern
Wed 11/300:55
BKK
-
LHR
1 stop23h 35m
China Eastern
Deal found 8/2฿17,121
Wed 4/321:00
LHR
-
BKK
1 stop24h 45m
China Eastern
Wed 25/319:05
BKK
-
LHR
1 stop29h 25m
China Eastern
Deal found 8/2฿17,153
Sun 31/522:40
LHR
-
BKK
1 stop37h 40m
Air China
Tue 9/619:35
BKK
-
LHR
1 stop30h 50m
Air China
Deal found 7/2฿17,184

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 10 February 2026. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Suvarnabhumi

Route

Depart

Return

Price

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Sat 14/3

21:00-22:45

1 stop18h 45m

Phuket City

Sat 28/3

00:20-17:40

1 stop24h 20m

฿17,496

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Mon 9/3

21:00-22:45

1 stop18h 45m

Phuket City

Mon 16/3

19:35-17:30

2 stops52h 55m

฿17,745

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Mon 9/3

21:00-18:15

2 stops38h 15m

Phuket City

Sun 22/3

19:45-17:30

2 stops28h 45m

฿17,964

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 14/3

21:00-09:05

2 stops53h 05m

Chiang Mai

Wed 25/3

16:25-17:30

2 stops32h 05m

฿17,964

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 4/5

21:20-21:55

1 stop18h 35m

Bangkok Suvarnabhumi

Sat 23/5

05:05-18:40

1 stop19h 35m

฿17,995

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Thu 14/5

21:20-13:25

1 stop34h 05m

Chiang Mai

Thu 28/5

14:55-18:40

1 stop33h 45m

฿17,995

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 13/5

21:20-13:25

1 stop34h 05m

Chiang Mai

Thu 28/5

14:55-18:40

1 stop33h 45m

฿17,995

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 8/4

22:05-18:30

1 stop38h 25m

Bangkok Suvarnabhumi

Tue 5/5

03:15-20:00

1 stop22h 45m

฿19,024

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 2/3

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Tue 17/3

12:10-19:10

1 stop38h 00m

฿19,149

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 18/6

09:45-07:40

1 stop15h 55m

Bangkok Suvarnabhumi

Thu 9/7

08:40-19:00

1 stop16h 20m

฿20,084

Flights are sorted by cheapest return flights first.

Deals found on 9/2

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 6 February 2026.

Booking 85 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 ฿16,435). Flying from London Heathrow Airport in July will prove the most costly (average of ฿22,423). 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: EVA Air, Thai Airways, เอทิฮัดแอร์เวย์, Qatar Airways, โอมานแอร์. These airlines fly to the following popular destinations: Bangkok.

EVA Air
EVA Air
From ฿29,045
Thai Airways
Thai Airways
From ฿27,631
เอทิฮัดแอร์เวย์
เอทิฮัดแอร์เวย์
From ฿21,519
Qatar Airways
Qatar Airways
From ฿23,687

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 (1,794 flights per day), Paris (831 flights per day) and Madrid (427 flights per day).

Abu Dhabi Zayed Intl
Abu Dhabi Zayed Intl
From ฿16,414
Muscat Seeb
Muscat Seeb
From ฿13,029

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

The cheapest city to fly to from London Heathrow Airport is Barcelona-El Prat, with prices starting at ฿4,769. Explore other affordable destinations below.

Barcelona-El Prat
Barcelona-El Prat
From ฿4,769
Edinburgh Turnhouse
Edinburgh Turnhouse
From ฿11,231

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 EVA Air, Emirates, andThai Airways from London Heathrow Airport. 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
1,349 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
EVA Air
8.4
Very Good
1,349 reviews
EVA Air
8.4
Very Good
1,349 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Emirates
8.1
Very Good
3,514 reviews
EVA Air
8.4
Very Good
1,349 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Thai Airways
7.8
Good
382 reviews
EVA Air
8.4
Very Good
1,349 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Qatar Airways
7.4
Good
3,730 reviews
EVA Air
8.4
Very Good
1,349 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
เอทิฮัดแอร์เวย์
7.3
Good
1,391 reviews
EVA Air
8.4
Very Good
1,349 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.

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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 10 February 2026.
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 10 February 2026.

  • 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 Mumbai, Bangkok Suvarnabhumi Airport, Ahmedabad. While Bangkok Suvarnabhumi Airport, Mumbai, Ahmedabad 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 ฿3,045 to Luqa (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿23,613 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 ไห่หนานแอร์ไลน์, Shenzhen Airlines, and China Southern to have the cheapest round-trip prices from London Heathrow Airport. Some of the destinations and prices are as follows: ไห่หนานแอร์ไลน์ flights from London Heathrow Airport to Bangkok Suvarnabhumi (฿11,871). Shenzhen Airlines flights from London Heathrow Airport to Bangkok Suvarnabhumi (฿14,972). China Southern flights from London Heathrow Airport to Bangkok Suvarnabhumi (฿15,800).

  • 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 Vienna from ฿43,259
    Fly London Heathrow to Helsinki from ฿46,465
    Fly London Heathrow to New Delhi from ฿50,391
    Fly London Heathrow to Paris Charles de Gaulle Airport from ฿55,351

  • 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 ฿236,947 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 ฿16,498
    Fly from London to Phuket City from ฿16,872
    Fly from London to Ko Samui from ฿22,454

  • 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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