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

The number of flights available between London and Southeast Asia is 376 per week as of July 2025. The most frequent departure day is Wed, with 15% of weekly flights leaving on this day.

Which airlines fly to Southeast Asia?

Thai Airways, Air China and Qatar Airways 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 33% of people opting to fly with this airline when travelling to Southeast Asia. Keep in mind that there are 44 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 July 2025, 53 flights take off from London and land in Southeast Asia each day. The most common flight departure time for this route is 20:00, with 62% 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 updated daily.

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

As of July 2025, there are 41 operators available to choose from for flights from London to Southeast Asia.

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.

£187 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 return flights

22:05 - 02:15LHR-BKK

22h 10m1 stop

03:15 - 20:00BKK-LHR

22h 45m1 stop

£332Shenzhen Airlines

Find Deal

Mon, 1 Sep - Tue, 30 Sep

22:05 - 11:10LHR-BKK

31h 05m1 stop

03:15 - 19:50BKK-LHR

22h 35m1 stop

£333Shenzhen Airlines

Find Deal

Fri, 12 Sep - Sun, 28 Sep

12:00 - 12:50LGW-BKK

18h 50m1 stop

08:20 - 06:50BKK-LGW

28h 30m1 stop

£396China Southern

Find Deal

Mon, 22 Sep - Sun, 5 Oct

21:00 - 03:40LHR-MNL

22h 40m1 stop

04:55 - 17:30MNL-LHR

20h 35m1 stop

£407China Eastern

Find Deal

Tue, 18 Nov - Wed, 10 Dec

10:30 - 12:20LGW-BKK

18h 50m1 stop

13:35 - 06:30BKK-LGW

23h 55m1 stop

£407China Eastern

Find Deal

Sat, 29 Nov - Tue, 16 Dec

11:15 - 16:00LGW-SIN

21h 45m1 stop

17:30 - 06:55SIN-LGW

20h 25m1 stop

£420Air China

Find Deal

Wed, 17 Sep - Fri, 17 Oct

17:40 - 00:05LHR-MNL

22h 25m1 stop

02:55 - 19:40MNL-LHR

24h 45m1 stop

£425Air China

Find Deal

Wed, 7 Jan - Fri, 23 Jan

20:55 - 09:40LHR-SIN

29h 45m1 stop

21:10 - 18:45SIN-LHR

28h 35m1 stop

£429Etihad Airways

Find Deal

Wed, 27 Aug - Thu, 25 Sep

21:45 - 09:40LHR-SIN

28h 55m1 stop

21:10 - 12:45SIN-LHR

22h 35m1 stop

£430Etihad Airways

Find Deal

Wed, 27 Aug - Thu, 25 Sep

20:25 - 00:30LGW-KUL

44h 05m2 stops

02:40 - 17:20KUL-LGW

22h 40m1 stop

£489China Southern

Find Deal

Sat, 1 Nov - Fri, 21 Nov

KLM flights from London to Southeast Asia

Our best KLM deals on London to Southeast Asia flight tickets

KLM

25 Aug

LCY11:50London City

15h 40m

1 stop

BKK09:30Bangkok Suvarnabhumi

22 Oct

BKK12:05Bangkok Suvarnabhumi

26h 05m

1 stop

LCY08:10London City

£531

Find similar

KLM

25 Aug

LCY11:05London City

16h 25m

1 stop

BKK09:30Bangkok Suvarnabhumi

22 Oct

BKK12:05Bangkok Suvarnabhumi

26h 05m

1 stop

LCY08:10London City

£533

Find similar

KLM

9 Sept

LCY10:00London City

17h 30m

1 stop

BKK09:30Bangkok Suvarnabhumi

5 Nov

BKK12:15Bangkok Suvarnabhumi

26h 55m

1 stop

LCY08:10London City

£538

Find similar

Hainan Airlines flights from London to Southeast Asia

Our best Hainan Airlines deals on London to Southeast Asia flight tickets

Hainan Airlines

27 Oct

LHR21:00London Heathrow

30h 05m

2 stops

BKK10:05Bangkok Suvarnabhumi

16 Nov

BKK11:10Bangkok Suvarnabhumi

37h 45m

2 stops

LHR17:55London Heathrow

£393

Find similar

Hainan Airlines

15 Sept

LHR22:00London Heathrow

30h 00m

2 stops

BKK10:00Bangkok Suvarnabhumi

14 Oct

BKK19:20Bangkok Suvarnabhumi

30h 10m

1 stop

LHR19:30London Heathrow

£393

Find similar

Hainan Airlines

19 Sept

LHR22:00London Heathrow

30h 00m

2 stops

BKK10:00Bangkok Suvarnabhumi

9 Nov

BKK19:10Bangkok Suvarnabhumi

29h 45m

2 stops

LHR17:55London Heathrow

£394

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 1/9

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Tue 30/9

03:15-20:00

1 stop22h 45m

£332

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 12/9

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Sun 28/9

03:15-19:50

1 stop22h 35m

£333

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 22/9

12:00-12:50

1 stop18h 50m

Bangkok Suvarnabhumi

Sun 5/10

08:20-06:50

1 stop28h 30m

£396

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Tue 18/11

21:00-03:40

1 stop22h 40m

Manila Ninoy Aquino Intl

Wed 10/12

04:55-17:30

1 stop20h 35m

£407

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sat 29/11

10:30-12:20

1 stop18h 50m

Bangkok Suvarnabhumi

Tue 16/12

13:35-06:30

1 stop23h 55m

£407

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

Wed 17/9

11:15-16:00

1 stop21h 45m

Singapore Changi

Fri 17/10

17:30-06:55

1 stop20h 25m

£420

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Wed 7/1

17:40-00:05

1 stop22h 25m

Manila Ninoy Aquino Intl

Fri 23/1

02:55-19:40

1 stop24h 45m

£425

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 27/8

20:55-09:40

1 stop29h 45m

Singapore Changi

Thu 25/9

21:10-18:45

1 stop28h 35m

£429

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 27/8

21:45-09:40

1 stop28h 55m

Singapore Changi

Thu 25/9

21:10-12:45

1 stop22h 35m

£430

LondonKuala Lumpur

LGW - KUL

LGWKUL

London Gatwick

Sat 1/11

20:25-00:30

2 stops44h 05m

Kuala Lumpur Intl

Fri 21/11

02:40-17:20

1 stop22h 40m

£489

Flights are sorted by cheapest return 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 £408. If you are unable to visit Southeast Asia during the month of May, then departing from London during the month September is also very affordable. Most momondo users find prices during this month for around £553.

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

Our data shows that Wednesday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £742. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Southeast Asia on Saturday is £792.

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

At midday is the cheapest time of day to fly from London to Southeast Asia when you can find flight prices for as low as £651. Flying to Southeast Asia at midday is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around £821. 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 £709 when searching weeks before you fly. 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 £655 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?

You could potentially save up to 15% on your flight if you consider stops on a London to Southeast Asia flight.

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

Best price found	£187
Fastest flight time	14h 10m
Direct flights	Mon, Wed and Thu
Airports in Southeast Asia	4 airports

The best one-way flight to Southeast Asia from London in the past 72 hours is £187. The best return flight deal from London to Southeast Asia found on momondo in the last 72 hours is £332.

The fastest flight from London to Southeast Asia takes 14h 10m

Direct flights go from London to Southeast Asia on Monday, Wednesday and Thursday. Airline offering direct flights is Norse Atlantic UK..

There are 4 airports near Southeast Asia: Bangkok Suvarnabhumi (BKK), Kuala Lumpur Intl (KUL), Singapore Changi (SIN), Manila Ninoy Aquino Intl (MNL)

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 updated daily.
How many operators does momondo search for flights from London to Southeast Asia?
As of July 2025, there are 41 operators available to choose from for flights from London to Southeast Asia.
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?
momondo data reveals that the most frequently booked plane model on the route from London to Southeast Asia is Boeing 787-9 Dreamliner, representing 17.97% of all bookings. The subsequent popular models are Airbus A350-1000 at 15.53%, Boeing 777 at 13.93%, and Boeing 777-300ER at 7.33%.

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
Turkmenistan Airlines	PriceFrom £293	Free Cancellation	Rating 10.0 2 reviews	Search Turkmenistan Airlines flights
Hainan Airlines	PriceFrom £380	Free Cancellation	Rating 8.2 43 reviews	Search Hainan Airlines flights
KLM	PriceFrom £420	Free Cancellation	Rating 7.8 1,383 reviews	Search KLM flights
Norse Atlantic UK	PriceFrom £424	Free Cancellation	Rating 7.2 47 reviews	Search Norse Atlantic UK flights
Royal Brunei Airlines	PriceFrom £431	Free Cancellation	Rating 5.7 7 reviews	Search Royal Brunei Airlines flights
Royal Jordanian	PriceFrom £479	Free Cancellation	Rating 6.8 416 reviews	Search Royal Jordanian flights
SWISS	PriceFrom £482	Free Cancellation	Rating 7.5 1,686 reviews	Search SWISS flights
ITA Airways	PriceFrom £498	Free Cancellation	Rating 6.7 1,009 reviews	Search ITA Airways flights
A.P.G.	PriceFrom £509	Free Cancellation	Rating 0.0	Search A.P.G. flights
Virgin Atlantic	PriceFrom £547	Free Cancellation	Rating 7.4 655 reviews	Search Virgin Atlantic flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Southeast Asia. momondo saves you time and could save you money on your trip.

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

All flight searches from London to Southeast Asia on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Southeast Asia from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Southeast Asia from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Southeast Asia trip

We make it super easy to schedule, organise 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 Londonfrom £30

Flights to Bangkokfrom £334

Flights to New Yorkfrom £242

Flights to Dubaifrom £175

Flights to Istanbulfrom £62

Flights to Manchesterfrom £32

Flights to Jeddahfrom £155

Flights to Islamabadfrom £354

Flights to Manilafrom £435

Flights to New Delhifrom £321

Flights to Mumbaifrom £284

Flights to Lisbonfrom £43

Cheap flights from London to Southeast Asia from £187

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 28/8. 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, great deals

Big names, great 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 return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

KLM flights from London to Southeast Asia

Our best KLM deals on London to Southeast Asia flight tickets

Hainan Airlines flights from London to Southeast Asia

Our best Hainan Airlines 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?

You could potentially save up to 15% on your flight if you consider stops on a London to Southeast Asia flight.

Which airlines fly to Southeast Asia?

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

As of July 2025, 53 flights take off from London and land in Southeast Asia each day. The most common flight departure time for this route is 20:00, with 62% of daily flights taking off in the evening.

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

The number of flights available between London and Southeast Asia is 376 per week as of July 2025. The most frequent departure day is Wed, with 15% of weekly flights leaving 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

Best price found

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, organise 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