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.

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

Shenzhen Airlines, Hainan Airlines, 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 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 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 386 per week as of September 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 September 2025, there are 42 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.

£255 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

11:40 - 01:30LGW-BKK

30h 50m1 stop

12:25 - 18:20BKK-LGW

12h 55mdirect

£439

Find Deal

Fri, 28 Nov - Thu, 11 Dec

22:00 - 01:05LHR-BKK

20h 05m1 stop

02:10 - 18:35BKK-LHR

23h 25m1 stop

£439China Southern

Find Deal

Wed, 4 Mar - Wed, 18 Mar

21:00 - 22:25LHR-BKK

18h 25m1 stop

01:55 - 17:30BKK-LHR

22h 35m1 stop

£440China Eastern

Find Deal

Tue, 4 Nov - Thu, 13 Nov

17:40 - 18:05LHR-BKK

17h 25m1 stop

01:30 - 15:55BKK-LHR

21h 25m1 stop

£441Air China

Find Deal

Wed, 5 Nov - Wed, 19 Nov

11:35 - 01:15LGW-BKK

31h 40m2 stops

15:55 - 06:30BKK-LGW

44h 35m3 stops

£441China Eastern

Find Deal

Wed, 1 Oct - Wed, 15 Oct

17:40 - 18:05LHR-BKK

17h 25m1 stop

01:30 - 15:55BKK-LHR

21h 25m1 stop

£442Air China

Find Deal

Wed, 5 Nov - Sun, 16 Nov

13:00 - 19:35LHR-BKK

23h 35m1 stop

14:45 - 11:05BKK-LHR

27h 20m1 stop

£450Air India

Find Deal

Sun, 26 Oct - Sun, 2 Nov

13:55 - 09:35LHR-SIN

35h 40m1 stop

19:25 - 06:40SIN-LHR

19h 15m1 stop

£450Etihad Airways

Find Deal

Thu, 30 Oct - Mon, 10 Nov

21:05 - 19:35LHR-BKK

16h 30m1 stop

20:50 - 11:30BKK-LHR

20h 40m1 stop

£450Air India

Find Deal

Wed, 24 Sep - Wed, 8 Oct

08:50 - 09:35LHR-SIN

16h 45m1 stop

19:25 - 14:30SIN-LHR

27h 05m1 stop

£451Etihad Airways

Find Deal

Thu, 30 Oct - Mon, 10 Nov

China Eastern flights from London to Southeast Asia

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

China Eastern

4 Nov

LHR21:00London Heathrow

18h 25m

1 stop

BKK22:25Bangkok Suvarnabhumi

13 Nov

BKK01:55Bangkok Suvarnabhumi

22h 35m

1 stop

LHR17:30London Heathrow

£440

Find similar

China Eastern

1 Oct

LGW11:35London Gatwick

31h 40m

2 stops

BKK01:15Bangkok Suvarnabhumi

15 Oct

BKK15:55Bangkok Suvarnabhumi

44h 35m

3 stops

LGW06:30London Gatwick

£441

Find similar

China Eastern

23 Sept

LHR21:20London Heathrow

35h 35m

3 stops

BKK14:55Bangkok Suvarnabhumi

13 Oct

BKK02:10Bangkok Suvarnabhumi

22h 30m

1 stop

LHR18:40London Heathrow

£443

Find similar

Hainan Airlines flights from London to Southeast Asia

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

Hainan Airlines

1 Oct

LHR22:00London Heathrow

38h 15m

1 stop

BKK18:15Bangkok Suvarnabhumi

30 Oct

BKK01:35Bangkok Suvarnabhumi

23h 00m

1 stop

LHR17:35London Heathrow

£441

Find similar

Hainan Airlines

19 Sept

LHR22:00London Heathrow

30h 00m

2 stops

BKK10:00Bangkok Suvarnabhumi

5 Oct

BKK19:20Bangkok Suvarnabhumi

30h 10m

2 stops

LHR19:30London Heathrow

£441

Find similar

Hainan Airlines

26 Sept

LHR22:00London Heathrow

30h 00m

2 stops

SIN11:00Singapore Changi

26 Oct

SIN12:15Singapore Changi

37h 40m

2 stops

LHR17:55London Heathrow

£452

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Fri 28/11

11:40-01:30

1 stop30h 50m

Bangkok Suvarnabhumi

Thu 11/12

12:25-18:20

Nonstop12h 55m

£439

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 4/3

22:00-01:05

1 stop20h 05m

Bangkok Suvarnabhumi

Wed 18/3

02:10-18:35

1 stop23h 25m

£439

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 4/11

21:00-22:25

1 stop18h 25m

Bangkok Suvarnabhumi

Thu 13/11

01:55-17:30

1 stop22h 35m

£440

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 5/11

17:40-18:05

1 stop17h 25m

Bangkok Suvarnabhumi

Wed 19/11

01:30-15:55

1 stop21h 25m

£441

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 1/10

11:35-01:15

2 stops31h 40m

Bangkok Suvarnabhumi

Wed 15/10

15:55-06:30

3 stops44h 35m

£441

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 5/11

17:40-18:05

1 stop17h 25m

Bangkok Suvarnabhumi

Sun 16/11

01:30-15:55

1 stop21h 25m

£442

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 26/10

13:00-19:35

1 stop23h 35m

Bangkok Suvarnabhumi

Sun 2/11

14:45-11:05

1 stop27h 20m

£450

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 30/10

13:55-09:35

1 stop35h 40m

Singapore Changi

Mon 10/11

19:25-06:40

1 stop19h 15m

£450

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 24/9

21:05-19:35

1 stop16h 30m

Bangkok Suvarnabhumi

Wed 8/10

20:50-11:30

1 stop20h 40m

£450

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 30/10

08:50-09:35

1 stop16h 45m

Singapore Changi

Mon 10/11

19:25-14:30

1 stop27h 05m

£451

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 £401. 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 Wednesday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £725. 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 £777.

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 £641. 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 £754. 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 £697 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 £646 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 25m
Direct flights	Mon, Tue, Wed and Thu
Airports in Southeast Asia	1 airport

The fastest flight from London to Southeast Asia takes 11h 25m

Direct flights go from London to Southeast Asia on Monday, Tuesday, Wednesday and Thursday. 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 updated daily.
How many operators does momondo search for flights from London to Southeast Asia?
As of September 2025, there are 42 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 16.84% of all bookings. The subsequent popular models are Airbus A350-1000 at 15.89%, Boeing 777 at 14.68%, and Boeing 777-300ER at 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
Turkmenistan Airlines	PriceFrom £288	Free Cancellation	Rating 10.0 2 reviews	Search Turkmenistan Airlines flights
Norse Atlantic UK	PriceFrom £346	Free Cancellation	Rating 7.1 49 reviews	Search Norse Atlantic UK flights
KLM	PriceFrom £366	Free Cancellation	Rating 7.8 1,385 reviews	Search KLM flights
Hainan Airlines	PriceFrom £374	Free Cancellation	Rating 8.2 45 reviews	Search Hainan Airlines flights
SWISS	PriceFrom £423	Free Cancellation	Rating 7.5 1,731 reviews	Search SWISS flights
Royal Brunei Airlines	PriceFrom £424	Free Cancellation	Rating 5.7 7 reviews	Search Royal Brunei Airlines flights
Hahn Air	PriceFrom £440	Free Cancellation	Rating 2.5 4 reviews	Search Hahn Air flights
A.P.G.	PriceFrom £466	Free Cancellation	Rating 0.0	Search A.P.G. flights
ITA Airways	PriceFrom £490	Free Cancellation	Rating 6.7 1,036 reviews	Search ITA Airways flights
Royal Jordanian	PriceFrom £490	Free Cancellation	Rating 6.8 427 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 £30

Flights to Bangkokfrom £331

Flights to New Yorkfrom £247

Flights to Dubaifrom £224

Flights to Manchesterfrom £30

Flights to Istanbulfrom £55

Flights to Jeddahfrom £134

Flights to Islamabadfrom £385

Flights to Manilafrom £340

Flights to New Delhifrom £330

Flights to Mumbaifrom £308

Flights to Lisbonfrom £41

Cheap flights from London to Southeast Asia from £255

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 22/9. 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 Eastern flights from London to Southeast Asia

Our best China Eastern 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?

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, Hainan Airlines, 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 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 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 386 per week as of September 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