Which airlines fly to Southeast Asia?

Thai Airways, Air China and Etihad 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 36% of people opting to fly with this airline when travelling to Southeast Asia. Keep in mind that there are 45 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 December 2025, 54 flights take off from London and land in Southeast Asia each day. The most common flight departure time for this route is 21:00, with 62% of daily flights taking off in the evening.

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

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

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

The number of flights available between London and Southeast Asia is 381 per week as of December 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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 December 2025, there are 43 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.

£287 Cheap Flights from London to Southeast Asia in 2025/26

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Find the cheapest flights from London to Southeast Asia

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

22:00 - 01:05

LHR

BKK

20h 05m1 stop

19:15 - 17:55

BKK

LHR

29h 40m2 stops

£440China Southern

Sat, 24 Jan - Wed, 4 Feb

17:00 - 17:50

LGW

BKK

17h 50m1 stop

03:10 - 06:30

BKK

LGW

34h 20m2 stops

£441China Eastern

Wed, 28 Jan - Tue, 3 Feb

19:45 - 10:05

LHR

BKK

31h 20m1 stop

11:10 - 17:35

BKK

LHR

37h 25m2 stops

£441Hainan Airlines

Wed, 7 Jan - Thu, 22 Jan

17:40 - 00:10

LHR

BKK

23h 30m1 stop

01:30 - 17:50

BKK

LHR

23h 20m1 stop

£442Air China

Tue, 3 Feb - Thu, 12 Feb

11:05 - 01:30

LGW

BKK

31h 25m1 stop

02:30 - 06:55

BKK

LGW

35h 25m1 stop

£443Air China

Sat, 7 Mar - Fri, 13 Mar

08:45 - 22:40

LHR

MNL

29h 55m1 stop

23:40 - 20:30

MNL

LHR

28h 50m1 stop

£473Air India

Mon, 2 Mar - Wed, 18 Mar

13:00 - 22:40

LHR

MNL

25h 40m1 stop

23:40 - 20:30

MNL

LHR

28h 50m1 stop

£477Air India

Tue, 3 Mar - Tue, 17 Mar

21:25 - 18:20

LHR

KUL

12h 55mdirect

09:15 - 15:25

KUL

LHR

14h 10mdirect

£497Malaysia Airlines

Fri, 6 Mar - Sun, 15 Mar

19:20 - 19:35

LHR

KUL

16h 15m1 stop

09:35 - 14:30

KUL

LHR

36h 55m1 stop

£499Etihad Airways

Wed, 28 Jan - Wed, 11 Mar

13:55 - 19:35

LHR

KUL

21h 40m1 stop

09:35 - 06:40

KUL

LHR

29h 05m1 stop

£502Etihad Airways

Thu, 5 Feb - Mon, 2 Mar

China Southern flights from London to Southeast Asia

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

China Southern

24 Jan

LHR22:00London Heathrow

20h 05m

1 stop

BKK01:05Bangkok Suvarnabhumi

4 Feb

BKK19:15Bangkok Suvarnabhumi

29h 40m

2 stops

LHR17:55London Heathrow

£440

Find similar

China Southern

28 Jan

LHR17:15London Heathrow

25h 25m

2 stops

BKK01:40Bangkok Suvarnabhumi

8 Feb

BKK12:25Bangkok Suvarnabhumi

35h 35m

1 stop

LHR17:00London Heathrow

£446

Find similar

China Southern

27 Jan

LGW20:20London Gatwick

22h 30m

1 stop

BKK01:50Bangkok Suvarnabhumi

27 Mar

BKK02:10Bangkok Suvarnabhumi

22h 10m

2 stops

LGW17:20London Gatwick

£447

Find similar

Shenzhen Airlines flights from London to Southeast Asia

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

Shenzhen Airlines

1 Mar

LHR21:10London Heathrow

31h 00m

1 stop

BKK11:10Bangkok Suvarnabhumi

17 Mar

BKK03:15Bangkok Suvarnabhumi

22h 55m

1 stop

LHR19:10London Heathrow

£447

Find similar

Shenzhen Airlines

15 Mar

LHR21:10London Heathrow

20h 30m

1 stop

MNL01:40Manila Ninoy Aquino Intl

4 Apr

MNL02:55Manila Ninoy Aquino Intl

24h 05m

1 stop

LHR20:00London Heathrow

£470

Find similar

Shenzhen Airlines

13 May

LHR22:05London Heathrow

20h 35m

1 stop

MNL01:40Manila Ninoy Aquino Intl

4 Jun

MNL02:55Manila Ninoy Aquino Intl

24h 05m

1 stop

LHR20:00London Heathrow

£476

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 24/1

22:00-01:05

1 stop20h 05m

Bangkok Suvarnabhumi

Wed 4/2

19:15-17:55

2 stops29h 40m

£440

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 28/1

17:00-17:50

1 stop17h 50m

Bangkok Suvarnabhumi

Tue 3/2

03:10-06:30

2 stops34h 20m

£441

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 7/1

19:45-10:05

1 stop31h 20m

Bangkok Suvarnabhumi

Thu 22/1

11:10-17:35

2 stops37h 25m

£441

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 3/2

17:40-00:10

1 stop23h 30m

Bangkok Suvarnabhumi

Thu 12/2

01:30-17:50

1 stop23h 20m

£442

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sat 7/3

11:05-01:30

1 stop31h 25m

Bangkok Suvarnabhumi

Fri 13/3

02:30-06:55

1 stop35h 25m

£443

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Mon 2/3

08:45-22:40

1 stop29h 55m

Manila Ninoy Aquino Intl

Wed 18/3

23:40-20:30

1 stop28h 50m

£473

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Tue 3/3

13:00-22:40

1 stop25h 40m

Manila Ninoy Aquino Intl

Tue 17/3

23:40-20:30

1 stop28h 50m

£477

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Fri 6/3

21:25-18:20

Nonstop12h 55m

Kuala Lumpur Intl

Sun 15/3

09:15-15:25

Nonstop14h 10m

£497

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Wed 28/1

19:20-19:35

1 stop16h 15m

Kuala Lumpur Intl

Wed 11/3

09:35-14:30

1 stop36h 55m

£499

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Thu 5/2

13:55-19:35

1 stop21h 40m

Kuala Lumpur Intl

Mon 2/3

09:35-06:40

1 stop29h 05m

£502

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 £396. 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 £543.

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

Our data shows that Tuesday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £712. 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 £754.

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 £649. 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 evening because they tend to be around £739. 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 £703 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?

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, Tue, Wed, Thu and Sun
Airports in Southeast Asia	295 airports

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

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

There are 295 airports in Southeast Asia. From London there are direct flights to 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 updated daily.
How many operators does momondo search for flights from London to Southeast Asia?
As of December 2025, there are 43 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 18.41% of all bookings. The subsequent popular models are Airbus A350-1000 at 16.61%, Boeing 777 at 10.75%, and Boeing 777-300ER at 8.47%.

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 £291	Free Cancellation	Rating 0.0 0 reviews	Search Turkmenistan Airlines flights
Hainan Airlines	PriceFrom £364	Free Cancellation	Rating 8.3 58 reviews	Search Hainan Airlines flights
KLM	PriceFrom £371	Free Cancellation	Rating 7.7 1,430 reviews	Search KLM flights
Royal Brunei Airlines	PriceFrom £429	Free Cancellation	Rating 0.0 0 reviews	Search Royal Brunei Airlines flights
Hahn Air	PriceFrom £439	Free Cancellation	Rating 0.0	Search Hahn Air flights
Finnair	PriceFrom £454	Free Cancellation	Rating 7.6 1,337 reviews	Search Finnair flights
A.P.G.	PriceFrom £482	Free Cancellation	Rating 0.0	Search A.P.G. flights
TUI Airways	PriceFrom £484	Free Cancellation	Rating 0.0 0 reviews	Search TUI Airways flights
ITA Airways	PriceFrom £496	Free Cancellation	Rating 6.7 1,107 reviews	Search ITA Airways flights
Royal Jordanian	PriceFrom £508	Free Cancellation	Rating 6.8 443 reviews	Search Royal Jordanian 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 £31

Flights to Bangkokfrom £304

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Flights to Dubaifrom £212

Flights to Manchesterfrom £33

Flights to Istanbulfrom £55

Flights to Islamabadfrom £398

Flights to Manilafrom £378

Flights to Jeddahfrom £145

Flights to New Delhifrom £298

Flights to Mumbaifrom £312

Flights to Copenhagenfrom £28

Cheap flights from London to Southeast Asia from £292

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 3/2. 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

China Southern flights from London to Southeast Asia

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

Shenzhen Airlines flights from London to Southeast Asia

Our best Shenzhen 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

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?

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

Which airlines fly to Southeast Asia?

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

As of December 2025, 54 flights take off from London and land in Southeast Asia each day. The most common flight departure time for this route is 21:00, 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 381 per week as of December 2025. The most frequent departure day is Mon, 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

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