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

As of September 2025, 55 flights take off from London and land in Southeast Asia each day. The most common flight departure time for this route is 8:00PM, with 62% of daily flights taking off in the evening.

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

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

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

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

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 36% 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.

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 28 operators available for flights from London to Southeast Asia as of September 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.

$351 Cheap Flights from London to Southeast Asia in 2025

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Find the cheapest flights from London to Southeast Asia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:25 pm - 11:55 amLHR-HAN

33h 30m1 stop

1:25 pm - 8:30 pmHAN-LHR

37h 05m1 stop

$550Air China

Find Deal

Mon, Oct 13 - Wed, Oct 22

10:05 pm - 1:10 amLHR-HAN

21h 05m1 stop

2:10 am - 8:00 pmHAN-LHR

23h 50m1 stop

$556Shenzhen Airlines

Find Deal

Sun, Sep 28 - Sat, Oct 4

10:05 pm - 8:40 amLHR-HAN

28h 35m1 stop

2:10 am - 8:10 pmHAN-LHR

24h 00m1 stop

$557Shenzhen Airlines

Find Deal

Sun, Sep 28 - Sat, Oct 25

9:00 pm - 1:10 amLHR-SGN

21h 10m1 stop

2:10 am - 5:30 pmSGN-LHR

22h 20m1 stop

$600China Eastern

Find Deal

Tue, Nov 18 - Mon, Dec 15

9:00 pm - 3:55 pmLHR-SGN

35h 55m3 stops

2:10 am - 5:30 pmSGN-LHR

22h 20m1 stop

$601China Eastern

Find Deal

Wed, Nov 19 - Tue, Dec 16

9:30 pm - 10:50 amLHR-MNL

29h 20m2 stops

5:55 pm - 6:35 pmMNL-LHR

32h 40m1 stop

$622China Southern

Find Deal

Fri, Nov 21 - Sun, Dec 14

10:00 pm - 1:05 amLHR-BKK

20h 05m1 stop

3:45 pm - 6:35 pmBKK-LHR

33h 50m1 stop

$623China Southern

Find Deal

Tue, Nov 25 - Mon, Feb 23

9:10 am - 9:40 amLHR-LGK

16h 30m1 stop

10:45 am - 7:10 pmLGK-LHR

40h 25m2 stops

$1,192Singapore Airlines

Find Deal

Thu, Feb 5 - Sun, Feb 15

8:40 am - 5:45 pmLHR-LGK

25h 05m2 stops

2:50 pm - 6:15 amLGK-LHR

23h 25m2 stops

$1,194Qatar Airways

Find Deal

Thu, Feb 5 - Wed, Feb 18

8:35 pm - 2:45 pmLHR-LGK

34h 10m1 stop

10:45 am - 5:55 amLGK-LHR

27h 10m2 stops

$1,198Singapore Airlines

Find Deal

Fri, Jan 30 - Tue, Feb 10

Air India flights from London to Southeast Asia

Our best Air India deals on London to Southeast Asia flight tickets

Air India

Oct 7

LHR8:35 pmLondon Heathrow

17h 20m

1 stop

SGN7:55 pmHo Chi Minh City

Oct 14

SGN8:55 pmHo Chi Minh City

20h 35m

1 stop

LHR11:30 amLondon Heathrow

$566

Find similar

Air India

Nov 18

LHR8:45 amLondon Heathrow

28h 10m

1 stop

SGN7:55 pmHo Chi Minh City

Dec 17

SGN8:55 pmHo Chi Minh City

29h 25m

1 stop

LHR7:20 pmLondon Heathrow

$575

Find similar

Air India

Sep 24

LHR9:05 pmLondon Heathrow

16h 30m

1 stop

BKK7:35 pmBangkok Suvarnabhumi

Oct 1

BKK8:50 pmBangkok Suvarnabhumi

28h 40m

1 stop

LHR7:30 pmLondon Heathrow

$610

Find similar

China Eastern flights from London to Southeast Asia

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

China Eastern

Nov 18

LHR9:00 pmLondon Heathrow

21h 10m

1 stop

SGN1:10 amHo Chi Minh City

Dec 15

SGN2:10 amHo Chi Minh City

22h 20m

1 stop

LHR5:30 pmLondon Heathrow

$600

Find similar

China Eastern

Nov 19

LHR9:00 pmLondon Heathrow

35h 55m

3 stops

SGN3:55 pmHo Chi Minh City

Dec 16

SGN2:10 amHo Chi Minh City

22h 20m

1 stop

LHR5:30 pmLondon Heathrow

$601

Find similar

China Eastern

Sep 24

LGW11:35 amLondon Gatwick

18h 55m

1 stop

BKK12:30 pmBangkok Suvarnabhumi

Oct 1

BKK4:50 pmBangkok Suvarnabhumi

28h 10m

1 stop

LGW3:00 pmLondon Gatwick

$602

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 10/13

8:25 pm-11:55 am

1 stop33h 30m

Hanoi Noibai

Wed 10/22

1:25 pm-8:30 pm

1 stop37h 05m

$550

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 9/28

10:05 pm-1:10 am

1 stop21h 05m

Hanoi Noibai

Sat 10/4

2:10 am-8:00 pm

1 stop23h 50m

$556

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 9/28

10:05 pm-8:40 am

1 stop28h 35m

Hanoi Noibai

Sat 10/25

2:10 am-8:10 pm

1 stop24h 00m

$557

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Tue 11/18

9:00 pm-1:10 am

1 stop21h 10m

Ho Chi Minh City

Mon 12/15

2:10 am-5:30 pm

1 stop22h 20m

$600

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Wed 11/19

9:00 pm-3:55 pm

3 stops35h 55m

Ho Chi Minh City

Tue 12/16

2:10 am-5:30 pm

1 stop22h 20m

$601

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Fri 11/21

9:30 pm-10:50 am

2 stops29h 20m

Manila Ninoy Aquino Intl

Sun 12/14

5:55 pm-6:35 pm

1 stop32h 40m

$622

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 11/25

10:00 pm-1:05 am

1 stop20h 05m

Bangkok Suvarnabhumi

Mon 2/23

3:45 pm-6:35 pm

1 stop33h 50m

$623

LondonLangkawi

LHR - LGK

LHRLGK

London Heathrow

Thu 2/5

9:10 am-9:40 am

1 stop16h 30m

Langkawi

Sun 2/15

10:45 am-7:10 pm

2 stops40h 25m

$1,192

LondonLangkawi

LHR - LGK

LHRLGK

London Heathrow

Thu 2/5

8:40 am-5:45 pm

2 stops25h 05m

Langkawi

Wed 2/18

2:50 pm-6:15 am

2 stops23h 25m

$1,194

LondonLangkawi

LHR - LGK

LHRLGK

London Heathrow

Fri 1/30

8:35 pm-2:45 pm

1 stop34h 10m

Langkawi

Tue 2/10

10:45 am-5:55 am

2 stops27h 10m

$1,198

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 $543. 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 $735.

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 Wednesday when prices can be found for as low as $992. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,104. 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 $1,069. 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 $875 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 20m
Direct flights	Mon, Tue, Wed, Thu and Sat
Airports in Southeast Asia	2 airports

The fastest flight from London to Southeast Asia takes 11h 20m

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

There are 2 airports near Southeast Asia: Bangkok Suvarnabhumi (BKK), Hanoi Noibai (HAN)

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 28 operators available for flights from London to Southeast Asia as of September 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 (16.84% of total bookings). The next most popular plane models are Airbus A350-1000 (15.89%), Boeing 777 (14.68%), and Boeing 777-300ER (6.51%).

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 7.4 634 reviews	Search SAUDIA flights
Shenzhen Airlines	PriceFrom $457	Free Cancellation	Rating 7.5 20 reviews	Search Shenzhen Airlines flights
China Eastern	PriceFrom $519	Free Cancellation	Rating 7.2 165 reviews	Search China Eastern flights
Norse Atlantic UK	PriceFrom $533	Free Cancellation	Rating 7.1 49 reviews	Search Norse Atlantic UK flights
China Southern	PriceFrom $555	Free Cancellation	Rating 7.5 110 reviews	Search China Southern flights
Hainan Airlines	PriceFrom $560	Free Cancellation	Rating 8.2 45 reviews	Search Hainan Airlines flights
Air India	PriceFrom $590	Free Cancellation	Rating 5.5 2,930 reviews	Search Air India flights
British Airways	PriceFrom $620	Free Cancellation	Rating 6.6 7,361 reviews	Search British Airways flights
Gulf Air	PriceFrom $625	Free Cancellation	Rating 7.1 209 reviews	Search Gulf Air flights
Austrian Airlines	PriceFrom $641	Free Cancellation	Rating 7.6 850 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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Find better results for your trip to Southeast Asia

Popular cities in Southeast Asia

Flights to New Yorkfrom $49

Flights to Londonfrom $347

Flights to Bangkokfrom $510

Flights to Tokyofrom $387

Flights to Los Angelesfrom $49

Flights to Parisfrom $340

Flights to Copenhagenfrom $362

Flights to Istanbulfrom $386

Flights to Manilafrom $518

Flights to Romefrom $340

Flights to Miamifrom $51

Flights to Chicagofrom $49

Cheap flights from London to Southeast Asia from $351

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 9/21. 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

Air India flights from London to Southeast Asia

Our best Air India deals on London to Southeast Asia flight tickets

China Eastern flights from London to Southeast Asia

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

momondo Fare Finder

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, Air China, 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 September 2025, 55 flights take off from London and land in Southeast Asia each day. The most common flight departure time for this route is 8:00PM, with 62% of daily flights taking off in the evening.

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

387 flights are operational weekly from London to Southeast Asia as of September 2025. The most popular departure day for this route is Wed, 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