How long is the flight from London to Southeast Asia?

China Eastern, Etihad Airways, and Turkish Airlines can get you from London to Southeast Asia in just under 14h 25m. Your travel time can differ by up to 32h. Airlines will cover a distance of 9571 km. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

What are the most popular routes from London to Southeast Asia?

While some choose either London Stansted - Denpasar Bali Ngurah Rai or London City - Phuket City, London City - Denpasar Bali Ngurah Rai is the most popular route from London to Southeast Asia.

What are the cheapest flights from London to Southeast Asia?

On average you can expect to pay $2,147 for a flight from London to Southeast Asia. The cheapest flight overall is $1,234 while the most popular route, (London City - Denpasar Bali Ngurah Rai) is currently priced at $865.

What are the most reliable airlines from London to Southeast Asia?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Southeast Asia on time: Thai Airways (87%), EVA Air (87%), Air Canada (83%).

Can I find deals for flights from London to Southeast Asia that include hotel bookings?

Yes. In addition to deals on London to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Southeast Asia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Southeast Asia.

Can I find deals for business class flights from London to Southeast Asia?

Yes. Cheapflights offers flight deals from London to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$543+ Cheap Flights from London to Southeast Asia

Cheap flight deals from London to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from London to Southeast Asia
Explore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 August 2026.

Sat 17/1022:05 -

1 stop22h 10m

Thu 22/1003:15 -

1 stop22h 45m

Deal found 6/8$885

Tue 3/1121:00 -

1 stop18h 25m

Thu 19/1119:05 -

1 stop29h 25m

Deal found 4/8$886

Mon 7/920:25 -

1 stop21h 45m

Wed 9/901:30 -

1 stop22h 10m

Deal found 4/8$888

Fri 6/1121:10 -

1 stop21h 10m

Sun 22/1102:20 -

1 stop23h 50m

Deal found 5/8$889

Wed 4/1121:10 -

1 stop21h 10m

Sat 14/1117:55 -

1 stop32h 15m

Deal found 4/8$891

Fri 25/922:05 -

1 stop31h 05m

Sun 11/1012:10 -

1 stop37h 40m

Deal found 4/8$892

Fri 13/1121:10 -

1 stop31h 00m

Sat 28/1102:20 -

1 stop23h 50m

Deal found 3/8$893

Mon 14/922:00 -

2 stops30h 00m

Tue 29/919:20 -

1 stop30h 10m

Deal found 6/8$895

Sun 8/1121:00 -

1 stop18h 25m

Tue 24/1115:55 -

2 stops32h 35m

Deal found 4/8$896

Mon 2/1121:00 -

1 stop18h 25m

Sun 22/1107:50 -

2 stops40h 40m

Deal found 5/8$898

Mon 2/1121:00 -

1 stop20h 55m

Fri 13/1107:50 -

2 stops40h 40m

Deal found 6/8$899

Tue 3/1121:00 -

1 stop18h 25m

Mon 23/1115:55 -

2 stops32h 35m

Deal found 3/8$902

Best flights from London to Southeast Asia
Discover carefully curated flight deals from London to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 August 2026.

Mon 17/822:05 -

1 stop22h 10m

Sun 13/912:10 -

1 stop37h 40m

Deal found 3/8$983

Wed 2/1221:00 -

2 stops40h 10m

Wed 9/1219:55 -

1 stop28h 35m

Deal found 1/8$1,004

Tue 1/917:45 -

2 stops19h 55m

Mon 21/902:15 -

2 stops20h 35m

Deal found 4/8$1,126

Mon 11/110:55 -

1 stop46h 25m

Wed 17/223:45 -

1 stop24h 35m

Deal found 5/8$1,235

Wed 26/809:20 -

1 stop23h 20m

Mon 7/923:55 -

1 stop16h 35m

Deal found 3/8$1,349

Mon 28/921:05 -

1 stop28h 30m

Mon 5/1019:10 -

1 stop24h 45m

Deal found 5/8$1,364

Sun 1/1108:25 -

2 stops22h 00m

Wed 2/1221:00 -

1 stop28h 25m

Deal found 6/8$1,436

Wed 27/113:55 -

2 stops26h 35m

Fri 12/214:40 -

1 stop23h 00m

Deal found 5/8$1,455

Fri 29/109:50 -

1 stop22h 50m

Wed 5/520:40 -

2 stops19h 00m

Deal found 1/8$1,590

Wed 11/1117:45 -

2 stops19h 20m

Mon 23/1121:50 -

2 stops18h 50m

Deal found 4/8$1,598

Thu 3/1221:00 -

1 stop24h 05m

Mon 14/1207:50 -

3 stops40h 40m

Deal found 1/8$1,052

Mon 11/110:55 -

1 stop46h 25m

Mon 25/123:45 -

1 stop24h 35m

Deal found 3/8$1,239

Mon 7/921:20 -

2 stops21h 50m

Thu 10/905:05 -

1 stop19h 35m

Deal found 4/8$1,144

Mon 16/1118:15 -

2 stops22h 05m

Wed 16/1219:55 -

2 stops20h 45m

Deal found 1/8$1,363

Mon 7/910:50 -

1 stop38h 15m

Mon 21/909:45 -

1 stop37h 55m

Deal found 3/8$1,239

Sun 1/1120:15 -

1 stop17h 40m

Thu 19/1110:15 -

1 stop15h 40m

Deal found 4/8$1,364

Mon 7/910:00 -

1 stop22h 40m

Mon 21/923:55 -

1 stop23h 45m

Deal found 3/8$1,383

Mon 2/1120:55 -

2 stops19h 35m

Wed 2/1214:40 -

1 stop23h 00m

Deal found 2/8$1,459

Thu 27/821:05 -

1 stop17h 00m

Thu 10/923:55 -

1 stop19h 00m

Deal found 1/8$1,376

Sat 31/1015:05 -

2 stops24h 25m

Sat 7/1118:45 -

2 stops27h 40m

Deal found 3/8$1,377

Mon 28/910:50 -

1 stop38h 15m

Sun 4/1023:25 -

1 stop29h 45m

Deal found 5/8$1,259

Mon 16/1117:05 -

2 stops17h 30m

Wed 2/1207:45 -

2 stops18h 50m

Deal found 4/8$1,446

Mon 30/1109:15 -

2 stops27h 50m

Wed 17/221:50 -

2 stops18h 50m

Deal found 2/8$1,604

Sun 1/1120:55 -

2 stops19h 35m

Wed 2/1214:40 -

1 stop23h 00m

Deal found 3/8$1,459

Thu 3/914:55 -

1 stop15h 05m

Thu 10/919:55 -

1 stop28h 50m

Deal found 5/8$1,376

Sat 26/910:50 -

1 stop38h 15m

Sun 29/1110:10 -

1 stop31h 45m

Deal found 6/8$1,275

Wed 27/110:55 -

2 stops26h 05m

Wed 10/222:25 -

1 stop18h 30m

Deal found 2/8$1,448

Sun 31/120:55 -

2 stops19h 35m

Sun 7/214:40 -

1 stop28h 25m

Deal found 3/8$1,463

Sat 31/1012:20 -

2 stops28h 00m

Sat 7/1119:55 -

2 stops24h 45m

Deal found 3/8$1,617

Sun 15/1113:45 -

2 stops20h 50m

Wed 2/1207:45 -

2 stops18h 50m

Deal found 3/8$1,499

Find flight deals from London to Southeast Asia

Round-trip from	$885
One-way from	$543
Popular in	December
Cheapest in	September
Average price	$1,343

Shenzhen Airlines
17/10-22/10
2 total stops
44h 55m total
London to Southeast Asia

Search Deals

Shenzhen Airlines
22/8
1 total stop
22h 10m total
London to Southeast Asia

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($127 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($56 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Mon 17/8

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Sun 13/9

12:10-19:50

1 stop37h 40m

$983

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Wed 2/12

21:00-20:10

2 stops40h 10m

Bangkok Suvarnabhumi

Wed 9/12

19:55-17:30

1 stop28h 35m

$1,004

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Thu 3/12

21:00-04:05

1 stop24h 05m

Bangkok Suvarnabhumi

Mon 14/12

07:50-17:30

3 stops40h 40m

$1,052

LondonKuala Lumpur

LTN London Luton - KUL Kuala Lumpur Intl

LTNKUL

London Luton

Tue 1/9

17:45-20:40

2 stops19h 55m

Kuala Lumpur Intl

Mon 21/9

02:15-15:50

2 stops20h 35m

$1,126

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Mon 7/9

21:20-01:10

2 stops21h 50m

Bangkok Suvarnabhumi

Thu 10/9

05:05-18:40

1 stop19h 35m

$1,144

LondonKuala Lumpur

STN London Stansted - KUL Kuala Lumpur Intl

STNKUL

London Stansted

Mon 11/1

10:55-17:20

1 stop46h 25m

Kuala Lumpur Intl

Wed 17/2

23:45-16:20

1 stop24h 35m

$1,235

LondonKuala Lumpur

STN London Stansted - KUL Kuala Lumpur Intl

STNKUL

London Stansted

Mon 11/1

10:55-17:20

1 stop46h 25m

Kuala Lumpur Intl

Mon 25/1

23:45-16:20

1 stop24h 35m

$1,239

LondonKuala Lumpur

STN London Stansted - KUL Kuala Lumpur Intl

STNKUL

London Stansted

Mon 7/9

10:50-08:05

1 stop38h 15m

Kuala Lumpur Intl

Mon 21/9

09:45-16:40

1 stop37h 55m

$1,239

LondonKuala Lumpur

STN London Stansted - KUL Kuala Lumpur Intl

STNKUL

London Stansted

Mon 28/9

10:50-08:05

1 stop38h 15m

Kuala Lumpur Intl

Sun 4/10

23:25-22:10

1 stop29h 45m

$1,259

LondonKuala Lumpur

STN London Stansted - KUL Kuala Lumpur Intl

STNKUL

London Stansted

Sat 26/9

10:50-08:05

1 stop38h 15m

Kuala Lumpur Intl

Sun 29/11

10:10-09:55

1 stop31h 45m

$1,275

Flights are sorted by cheapest return flights first.

Deals found on 2/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from London to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from London with our price prediction graph.

LHR-BKK

STN-HKT

LTN-KUL

STN-KUL

LCY-KUL

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 London to Southeast Asia

LON-zzYJX

LHR-BKK

STN-HKT

LTN-KUL

STN-KUL

What is the cheapest month to book a flight from London to Southeast Asia?

Currently, November is the cheapest month in which you can book a flight from London to Southeast Asia (average of $1,160). Flying from London to Southeast Asia in December is currently the most expensive (average of $1,933). 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 LON to YJX?

When flying from London to Southeast Asia, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 40% versus a flight in the afternoon.

Weekly flight availability from London to Southeast Asia

The most flights from LON to zzYJX are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

How far ahead should I book a flight from London to Southeast Asia?

The price you pay for your flight from London to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with Etihad Airways from London to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Etihad Airways

7.3

Good

1,498 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,June 2026

AUH - KBL

really liked the excellent customer service, friendly staff, smooth check-in process, and comfortable flight. Everyone was professional and helpful, which made my journey enjoyable and stress-free.

Etihad Airways

7.3

Good

1,498 reviews

Etihad Airways

7.3

Good

1,498 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,June 2026

AUH - KBL

really liked the excellent customer service, friendly staff, smooth check-in process, and comfortable flight. Everyone was professional and helpful, which made my journey enjoyable and stress-free.

Related info for your journey

How long is the flight from London to Southeast Asia?
China Eastern, Etihad Airways, and Turkish Airlines can get you from London to Southeast Asia in just under 14h 25m. Your travel time can differ by up to 32h. Airlines will cover a distance of 9571 km. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from London to Southeast Asia?
While some choose either London Stansted - Denpasar Bali Ngurah Rai or London City - Phuket City, London City - Denpasar Bali Ngurah Rai is the most popular route from London to Southeast Asia.
What are the most reliable airlines from London to Southeast Asia?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Southeast Asia on time: Thai Airways (87%), EVA Air (87%), Air Canada (83%).
What are the cheapest flights from London to Southeast Asia?
On average you can expect to pay $2,147 for a flight from London to Southeast Asia. The cheapest flight overall is $1,234 while the most popular route, (London City - Denpasar Bali Ngurah Rai) is currently priced at $865.
Can I find deals for flights from London to Southeast Asia that include hotel bookings?
Yes. In addition to deals on London to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Southeast Asia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Southeast Asia.
Can I find deals for business class flights from London to Southeast Asia?
Yes. Cheapflights offers flight deals from London to Southeast Asia 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 London to Southeast Asia?
Currently, November is the cheapest month in which you can book a flight from London to Southeast Asia (average of $1,160). Flying from London to Southeast Asia in December is currently the most expensive (average of $1,933). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Alternative routes for London to Southeast Asia

Heathrow to Suvarnabhumi flights

Gatwick to Suvarnabhumi flights

Heathrow to Singapore flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Southeast Asia?

When you search for this flight from London to Southeast Asia, 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 London to Southeast Asia?

Cheapflights helps you find that perfect flight to Southeast Asia from London 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 London to Southeast Asia with no change fees?

Yes! Cheapflights helps users easily find flights from London to Southeast Asia with no change fees.

Can Cheapflights notify me if prices for flights from London to Southeast Asia become cheaper?

Not ready to book yet? You can track prices for flights from London to Southeast Asia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.

Cheap flights from London to Southeast Asia from $543

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Southeast Asia

Cheapest flights from London to Southeast AsiaExplore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 August 2026.

Explore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 August 2026.

Best flights from London to Southeast AsiaDiscover carefully curated flight deals from London to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 August 2026.

Discover carefully curated flight deals from London to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 August 2026.

Direct flights from London to Southeast AsiaExplore direct flight options from London to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 August 2026.

Explore direct flight options from London to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 August 2026.

Last-minute flights from London to Southeast AsiaDiscover last-minute flight deals from London to Southeast Asia. Data last updated 6 August 2026 and is based on user searches.

Discover last-minute flight deals from London to Southeast Asia. Data last updated 6 August 2026 and is based on user searches.

One-way flights from London to Southeast AsiaSearch for one-way flight options from London to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 6 August 2026.

Search for one-way flight options from London to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 6 August 2026.

Find flight deals from London to Southeast Asia

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Southeast Asia that are best for you.

Best time to book a flight from London to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from London with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from London to Southeast Asia?

What is the cheapest time of day to fly from LON to YJX?

Find hourly flight availability from London to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 August 2026.

When flying from London to Southeast Asia, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 40% versus a flight in the afternoon.

Weekly flight availability from London to Southeast Asia

Explore weekly flight availability from London to Southeast Asia. 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 6 August 2026.

The most flights from LON to zzYJX are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

How far ahead should I book a flight from London to Southeast Asia?

The price you pay for your flight from London to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with Etihad Airways from London to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from London to Southeast Asia?

What are the most popular routes from London to Southeast Asia?

What are the most reliable airlines from London to Southeast Asia?

What are the cheapest flights from London to Southeast Asia?

Can I find deals for flights from London to Southeast Asia that include hotel bookings?

How can I find direct flights from London to Southeast Asia?

Can I find deals for business class flights from London to Southeast Asia?

What is the cheapest month to book a flight from London to Southeast Asia?

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.

Alternative routes for London to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Southeast Asia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from London to Southeast Asia by cabin class

Find flights from London to Southeast Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Southeast Asia flights

Browse other London and Southeast Asia flight options. Last updated on 6 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from London to Southeast Asia?

Why should you use Cheapflights to find cheap flight tickets from London to Southeast Asia?

Can Cheapflights find flights from London to Southeast Asia with no change fees?

Can Cheapflights notify me if prices for flights from London to Southeast Asia become cheaper?

100% Free

Book with flexibility

Travel Smart

Cheapest flights from London to Southeast Asia
Explore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 August 2026.

Best flights from London to Southeast Asia
Discover carefully curated flight deals from London to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 August 2026.

Direct flights from London to Southeast Asia
Explore direct flight options from London to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 August 2026.

Last-minute flights from London to Southeast Asia
Discover last-minute flight deals from London to Southeast Asia. Data last updated 6 August 2026 and is based on user searches.

One-way flights from London to Southeast Asia
Search for one-way flight options from London to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 6 August 2026.