How many flights depart from London to Southeast Asia on average per week?

369 flights are operational weekly from London to Southeast Asia as of October 2025. The most popular departure day for this route is Sat, with 15% of flights per week taking off on this day.

What is the cheapest airline that flies from London to Southeast Asia?

Shenzhen Airlines, China Southern, and Hainan Airlines are the most popular carriers operating from London to Southeast Asia

What airlines fly to Southeast Asia?

Thai Airways, Air China and EVA Air are the top three most popular airlines that fly to Southeast Asia from London according to our data. Thai Airways is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Southeast Asia. Keep in mind that there are 27 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

How many flights depart from London to Southeast Asia on average per day?

As of October 2025, 52 flights take off from London and land in Southeast Asia each day. The most common flight departure time for this route is 9:00PM, with 65% of daily flights taking off in the evening.

When did momondo last update prices for flights from London to Southeast Asia?

Prices for flights from London to Southeast Asia are refreshed on a daily basis.

How many operators does momondo search for flights from London to Southeast Asia?

There are 27 operators available for flights from London to Southeast Asia as of October 2025.

How old do you have to be to fly from London to Southeast Asia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Southeast Asia.

What documentation or ID do you need to fly to Southeast Asia?

The necessary travel and health documents for your Southeast Asia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$349 Cheap Flights from London to Southeast Asia in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:10 pm - 1:50 amLHR-SGN

21h 40m1 stop

2:50 am - 7:10 pmSGN-LHR

23h 20m1 stop

$594Shenzhen Airlines

Find Deal

Mon, Dec 1 - Tue, Dec 16

11:05 am - 1:30 amLGW-BKK

31h 25m1 stop

2:30 am - 6:55 amBKK-LGW

35h 25m1 stop

$600Air China

Find Deal

Sun, Nov 30 - Sun, Dec 14

5:15 pm - 1:05 amLHR-BKK

24h 50m2 stops

1:55 pm - 6:35 pmBKK-LHR

35h 40m1 stop

$607China Southern

Find Deal

Wed, Nov 12 - Wed, Nov 19

5:15 pm - 1:05 amLHR-BKK

24h 50m2 stops

2:10 am - 6:35 pmBKK-LHR

23h 25m1 stop

$608China Southern

Find Deal

Sun, Nov 16 - Mon, Nov 24

1:55 pm - 9:35 amLHR-SIN

35h 40m1 stop

7:25 pm - 6:40 amSIN-LHR

19h 15m1 stop

$608Etihad Airways

Find Deal

Wed, Nov 12 - Sun, Nov 16

8:55 pm - 9:35 amLHR-SIN

28h 40m1 stop

7:25 pm - 12:05 pmSIN-LHR

24h 40m1 stop

$609Etihad Airways

Find Deal

Mon, Nov 10 - Fri, Nov 14

10:30 am - 3:55 pmLGW-BKK

22h 25m1 stop

7:05 pm - 2:00 pmBKK-LGW

25h 55m1 stop

$610China Eastern

Find Deal

Sat, Feb 28 - Fri, Mar 20

10:30 am - 12:20 pmLGW-BKK

18h 50m1 stop

1:35 pm - 6:30 amBKK-LGW

23h 55m1 stop

$612China Eastern

Find Deal

Fri, Jan 16 - Wed, Jan 21

9:45 pm - 9:40 amLHR-LGK

27h 55m1 stop

3:40 pm - 7:40 amLGK-LHR

24h 00m1 stop

$1,103Singapore Airlines

Find Deal

Wed, Feb 25 - Thu, Mar 12

9:45 pm - 2:45 pmLHR-LGK

33h 00m1 stop

3:40 pm - 7:10 pmLGK-LHR

35h 30m1 stop

$1,143Singapore Airlines

Find Deal

Sun, Feb 22 - Wed, Mar 11

Norse Atlantic UK flights from London to Southeast Asia

Our best Norse Atlantic UK deals on London to Southeast Asia flight tickets

Norse Atlantic UK

Dec 3

LGW4:00 pmLondon Gatwick

11h 25m

BKK10:25 amBangkok Suvarnabhumi

Dec 25

BKK12:25 pmBangkok Suvarnabhumi

12h 55m

LGW6:20 pmLondon Gatwick

$603

Find similar

Norse Atlantic UK

Nov 16

LGW4:10 pmLondon Gatwick

11h 15m

BKK10:25 amBangkok Suvarnabhumi

Dec 3

BKK12:30 pmBangkok Suvarnabhumi

13h 00m

LGW6:30 pmLondon Gatwick

$628

Find similar

Norse Atlantic UK

Dec 2

LGW4:00 pmLondon Gatwick

11h 25m

BKK10:25 amBangkok Suvarnabhumi

Dec 23

BKK8:25 amBangkok Suvarnabhumi

13h 00m

LGW2:25 pmLondon Gatwick

$634

Find similar

China Southern flights from London to Southeast Asia

Our best China Southern deals on London to Southeast Asia flight tickets

China Southern

Nov 12

LHR5:15 pmLondon Heathrow

24h 50m

2 stops

BKK1:05 amBangkok Suvarnabhumi

Nov 19

BKK1:55 pmBangkok Suvarnabhumi

35h 40m

1 stop

LHR6:35 pmLondon Heathrow

$607

Find similar

China Southern

Nov 9

LHR10:00 pmLondon Heathrow

36h 05m

1 stop

BKK5:05 pmBangkok Suvarnabhumi

Dec 21

BKK6:05 pmBangkok Suvarnabhumi

31h 30m

1 stop

LHR6:35 pmLondon Heathrow

$608

Find similar

China Southern

Nov 9

LHR5:15 pmLondon Heathrow

33h 35m

2 stops

MNL10:50 amManila Ninoy Aquino Intl

Nov 23

MNL12:00 pmManila Ninoy Aquino Intl

38h 35m

1 stop

LHR6:35 pmLondon Heathrow

$609

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Mon 12/1

9:10 pm-1:50 am

1 stop21h 40m

Ho Chi Minh City

Tue 12/16

2:50 am-7:10 pm

1 stop23h 20m

$594

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 11/30

11:05 am-1:30 am

1 stop31h 25m

Bangkok Suvarnabhumi

Sun 12/14

2:30 am-6:55 am

1 stop35h 25m

$600

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 11/12

5:15 pm-1:05 am

2 stops24h 50m

Bangkok Suvarnabhumi

Wed 11/19

1:55 pm-6:35 pm

1 stop35h 40m

$607

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 11/16

5:15 pm-1:05 am

2 stops24h 50m

Bangkok Suvarnabhumi

Mon 11/24

2:10 am-6:35 pm

1 stop23h 25m

$608

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 11/12

1:55 pm-9:35 am

1 stop35h 40m

Singapore Changi

Sun 11/16

7:25 pm-6:40 am

1 stop19h 15m

$608

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 11/10

8:55 pm-9:35 am

1 stop28h 40m

Singapore Changi

Fri 11/14

7:25 pm-12:05 pm

1 stop24h 40m

$609

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sat 2/28

10:30 am-3:55 pm

1 stop22h 25m

Bangkok Suvarnabhumi

Fri 3/20

7:05 pm-2:00 pm

1 stop25h 55m

$610

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Fri 1/16

10:30 am-12:20 pm

1 stop18h 50m

Bangkok Suvarnabhumi

Wed 1/21

1:35 pm-6:30 am

1 stop23h 55m

$612

LondonLangkawi

LHR - LGK

LHRLGK

London Heathrow

Wed 2/25

9:45 pm-9:40 am

1 stop27h 55m

Langkawi

Thu 3/12

3:40 pm-7:40 am

1 stop24h 00m

$1,103

LondonLangkawi

LHR - LGK

LHRLGK

London Heathrow

Sun 2/22

9:45 pm-2:45 pm

1 stop33h 00m

Langkawi

Wed 3/11

3:40 pm-7:10 pm

1 stop35h 30m

$1,143

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Southeast Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Southeast Asia?

The month of May is, on average, the cheapest month to fly to Southeast Asia from London, with most prices found around $539. If you don’t want to visit Southeast Asia in May, then you should wait until September to fly from London, when ticket prices are also cheap, with an average price of $729.

What is the cheapest day to depart on your flight to Southeast Asia?

The cheapest day to depart from London to Southeast Asia is on a Monday when prices can be found for as low as $983. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,073. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Asia.

What is the cheapest time of day to depart on your flight to Southeast Asia?

In the afternoon is the cheapest time of day to fly from London to Southeast Asia when you can find flight prices for as low as $798. Flying to Southeast Asia in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $1,056. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London to Southeast Asia flight route?

Fly from London Gatwick to Bangkok Suvarnabhumi for the best London - Southeast Asia flight prices

How far in advance should I book a flight to Southeast Asia?

You are more likely to see cheaper flights to Southeast Asia from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around $944 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from London for as low as $871 on momondo.

What cabin class options are available on London to Southeast Asia flights?

There are 4 cabin classes available to choose from on London to Southeast Asia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between London to Southeast Asia.

Cheap London to Southeast Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Southeast Asia

Fastest flight time	11h 15m
Direct flights	Mon, Wed, Thu and Sat
Airports in Southeast Asia	1 airport

The fastest flight from London to Southeast Asia takes 11h 15m

Direct flights go from London to Southeast Asia on Monday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights.

There is 1 airport near Southeast Asia: Bangkok Suvarnabhumi (BKK)

Search flight deals

When did momondo last update prices for flights from London to Southeast Asia?
Prices for flights from London to Southeast Asia are refreshed on a daily basis.
How many operators does momondo search for flights from London to Southeast Asia?
There are 27 operators available for flights from London to Southeast Asia as of October 2025.
How old do you have to be to fly from London to Southeast Asia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The necessary travel and health documents for your Southeast Asia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Southeast Asia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Southeast Asia is Boeing 787-9 Dreamliner (16.67% of total bookings). The next most popular plane models are Airbus A350-1000 (16.41%), Boeing 777 (12.99%), and Boeing 777-300ER (7.90%).

Best airlines flying from London to Southeast Asia

Compare and see reviews for airlines that fly from London to Southeast Asia with momondo

Airline	Rating	Free Cancellation	Price
SAUDIA	PriceFrom $407	Free Cancellation	Rating 7.4 638 reviews	Search SAUDIA flights
Shenzhen Airlines	PriceFrom $457	Free Cancellation	Rating 7.5 20 reviews	Search Shenzhen Airlines flights
Air India	PriceFrom $472	Free Cancellation	Rating 5.5 2,940 reviews	Search Air India flights
Norse Atlantic UK	PriceFrom $533	Free Cancellation	Rating 7.2 51 reviews	Search Norse Atlantic UK flights
China Eastern	PriceFrom $533	Free Cancellation	Rating 7.2 174 reviews	Search China Eastern flights
China Southern	PriceFrom $557	Free Cancellation	Rating 7.4 117 reviews	Search China Southern flights
Hainan Airlines	PriceFrom $560	Free Cancellation	Rating 8.1 50 reviews	Search Hainan Airlines flights
British Airways	PriceFrom $620	Free Cancellation	Rating 6.7 7,487 reviews	Search British Airways flights
Gulf Air	PriceFrom $621	Free Cancellation	Rating 7.2 217 reviews	Search Gulf Air flights
Austrian Airlines	PriceFrom $641	Free Cancellation	Rating 7.6 862 reviews	Search Austrian Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Southeast Asia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Southeast Asia from London.

Can I find flights from London to Southeast Asia with flexible booking policies on momondo?

Yes. All flights to Southeast Asia from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Southeast Asia?

Once all potential London to Southeast Asia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Southeast Asia right now. Can momondo alert me if prices change?

Price alerts on flights to Southeast Asia from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Southeast Asia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Get notified when prices go down

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Find better results for your trip to Southeast Asia

Popular cities in Southeast Asia

Flights to New Yorkfrom $49

Flights to Londonfrom $32

Flights to Bangkokfrom $479

Flights to Tokyofrom $460

Flights to Los Angelesfrom $47

Flights to Parisfrom $338

Flights to Copenhagenfrom $348

Flights to Istanbulfrom $382

Flights to Manilafrom $521

Flights to Romefrom $312

Flights to Miamifrom $47

Flights to Chicagofrom $49

Cheap flights from London to Southeast Asia from $349

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Southeast Asia departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Southeast Asia

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Norse Atlantic UK flights from London to Southeast Asia

Our best Norse Atlantic UK deals on London to Southeast Asia flight tickets

China Southern flights from London to Southeast Asia

Our best China Southern deals on London to Southeast Asia flight tickets

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

See travel insights to Southeast Asia from

How to get the cheapest flight ticket from London to Southeast Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Southeast Asia?

What is the cheapest day to depart on your flight to Southeast Asia?

What is the cheapest time of day to depart on your flight to Southeast Asia?

What is the cheapest London to Southeast Asia flight route?

Fly from London Gatwick to Bangkok Suvarnabhumi for the best London - Southeast Asia flight prices

How far in advance should I book a flight to Southeast Asia?

What cabin class options are available on London to Southeast Asia flights?

There are 4 cabin classes available to choose from on London to Southeast Asia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between London to Southeast Asia.

What is the cheapest airline that flies from London to Southeast Asia?

Shenzhen Airlines, China Southern, and Hainan Airlines are the most popular carriers operating from London to Southeast Asia

What airlines fly to Southeast Asia?

How many flights depart from London to Southeast Asia on average per day?

As of October 2025, 52 flights take off from London and land in Southeast Asia each day. The most common flight departure time for this route is 9:00PM, with 65% of daily flights taking off in the evening.

How many flights depart from London to Southeast Asia on average per week?

369 flights are operational weekly from London to Southeast Asia as of October 2025. The most popular departure day for this route is Sat, with 15% of flights per week taking off on this day.

Cheap London to Southeast Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Southeast Asia

Fastest flight time

Direct flights

Airports in Southeast Asia

When did momondo last update prices for flights from London to Southeast Asia?

How many operators does momondo search for flights from London to Southeast Asia?

How old do you have to be to fly from London to Southeast Asia?

What documentation or ID do you need to fly to Southeast Asia?

What is the most popular plane model from London to Southeast Asia?

Best airlines flying from London to Southeast Asia

Compare and see reviews for airlines that fly from London to Southeast Asia with momondo

Why use momondo?

Why should I use momondo to find a flight deal from London to Southeast Asia?

Can I find flights from London to Southeast Asia with flexible booking policies on momondo?

How can momondo help me find flights from London to Southeast Asia?

I’m not ready to book a flight from London to Southeast Asia right now. Can momondo alert me if prices change?

An easier way to manage your Southeast Asia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Southeast Asia

Popular cities in Southeast Asia

Popular flights according to clicks in the last 7 days on momondo