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

The number of flights available between London and Southeast Asia is 239 per week as of December 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

34 flights are operational daily from London to Southeast Asia as of December 2025. The most popular departure time for this route is 21:00, with 62% of flights per day taking off in the evening.

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

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

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

Prices for flights from London to Southeast Asia refresh daily.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required travel and health documents for your Southeast Asia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

₹ 39,807 Cheap Flights from London to Southeast Asia in 2025/26

1 adult

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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.

16:25 - 16:40

LHR

SIN

17h 15m1 stop

23:25 - 08:15

SIN

LHR

15h 50m1 stop

₹ 57,035Lufthansa

Sat, 25 Apr - Sun, 10 May

17:50 - 16:40

LHR

SIN

15h 50m1 stop

23:25 - 09:55

SIN

LHR

17h 30m1 stop

₹ 57,488Lufthansa

Sat, 18 Apr - Sun, 24 May

17:50 - 16:40

LHR

SIN

15h 50m1 stop

23:40 - 10:40

SIN

LHR

18h 00m1 stop

₹ 58,123Lufthansa

Sun, 19 Apr - Mon, 25 May

21:05 - 09:10

LHR

IXZ

30h 35m1 stop

09:40 - 19:30

IXZ

LHR

15h 20m1 stop

₹ 58,758Air India

Thu, 19 Feb - Thu, 19 Mar

13:30 - 14:25

LHR

IXZ

19h 25m2 stops

09:40 - 19:30

IXZ

LHR

15h 20m1 stop

₹ 58,939Air India

Thu, 19 Feb - Thu, 19 Mar

21:05 - 08:55

LHR

IXZ

30h 20m1 stop

09:40 - 19:30

IXZ

LHR

15h 20m1 stop

₹ 59,030Air India

Thu, 29 Jan - Thu, 5 Feb

11:45 - 15:40

LHR

SIN

20h 55m1 stop

10:50 - 21:25

SIN

LHR

17h 35m1 stop

₹ 59,121Multiple Airlines

Tue, 26 May - Tue, 9 Jun

18:40 - 18:00

LHR

SIN

15h 20m1 stop

00:05 - 13:40

SIN

LHR

21h 35m2 stops

₹ 61,116SWISS

Wed, 4 Mar - Tue, 17 Mar

17:50 - 17:25

LHR

SIN

15h 35m1 stop

00:05 - 11:15

SIN

LHR

19h 10m1 stop

₹ 61,478Multiple Airlines

Thu, 29 Jan - Wed, 4 Feb

21:10 - 17:30

LHR

SIN

36h 20m1 stop

03:00 - 19:10

SIN

LHR

24h 10m1 stop

₹ 62,113Shenzhen Airlines

Fri, 6 Feb - Tue, 24 Feb

Shenzhen Airlines flights from London to Southeast Asia

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

Shenzhen Airlines

6 Feb

LHR21:10London Heathrow

36h 20m

1 stop

SIN17:30Singapore Changi

24 Feb

SIN03:00Singapore Changi

24h 10m

1 stop

LHR19:10London Heathrow

₹ 62,113

Find similar

Shenzhen Airlines

26 Apr

LHR22:05London Heathrow

31h 05m

1 stop

SIN12:10Singapore Changi

12 May

SIN18:10Singapore Changi

32h 50m

1 stop

LHR20:00London Heathrow

₹ 63,564

Find similar

Shenzhen Airlines

12 Jun

LHR22:05London Heathrow

35h 35m

1 stop

SIN16:40Singapore Changi

27 Jun

SIN13:20Singapore Changi

37h 40m

1 stop

LHR20:00London Heathrow

₹ 69,095

Find similar

SWISS flights from London to Southeast Asia

Our best SWISS deals on London to Southeast Asia flight tickets

SWISS

4 Mar

LHR18:40London Heathrow

15h 20m

1 stop

SIN18:00Singapore Changi

17 Mar

SIN00:05Singapore Changi

21h 35m

2 stops

LHR13:40London Heathrow

₹ 61,116

Find similar

SWISS

4 Mar

LHR14:25London Heathrow

19h 35m

2 stops

SIN18:00Singapore Changi

17 Mar

SIN00:05Singapore Changi

21h 35m

2 stops

LHR13:40London Heathrow

₹ 64,198

Find similar

SWISS

28 Feb

LHR20:05London Heathrow

37h 55m

1 stop

SIN18:00Singapore Changi

30 Mar

SIN23:30Singapore Changi

15h 25m

1 stop

LHR07:55London Heathrow

₹ 64,289

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sat 25/4

16:25-16:40

1 stop17h 15m

Singapore Changi

Sun 10/5

23:25-08:15

1 stop15h 50m

₹ 57,035

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sat 18/4

17:50-16:40

1 stop15h 50m

Singapore Changi

Sun 24/5

23:25-09:55

1 stop17h 30m

₹ 57,488

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 19/4

17:50-16:40

1 stop15h 50m

Singapore Changi

Mon 25/5

23:40-10:40

1 stop18h 00m

₹ 58,123

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Thu 19/2

21:05-09:10

1 stop30h 35m

Port Blair

Thu 19/3

09:40-19:30

1 stop15h 20m

₹ 58,758

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Thu 19/2

13:30-14:25

2 stops19h 25m

Port Blair

Thu 19/3

09:40-19:30

1 stop15h 20m

₹ 58,939

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Thu 29/1

21:05-08:55

1 stop30h 20m

Port Blair

Thu 5/2

09:40-19:30

1 stop15h 20m

₹ 59,030

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 26/5

11:45-15:40

1 stop20h 55m

Singapore Changi

Tue 9/6

10:50-21:25

1 stop17h 35m

₹ 59,121

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 4/3

18:40-18:00

1 stop15h 20m

Singapore Changi

Tue 17/3

00:05-13:40

2 stops21h 35m

₹ 61,116

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 29/1

17:50-17:25

1 stop15h 35m

Singapore Changi

Wed 4/2

00:05-11:15

1 stop19h 10m

₹ 61,478

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 6/2

21:10-17:30

1 stop36h 20m

Singapore Changi

Tue 24/2

03:00-19:10

1 stop24h 10m

₹ 62,113

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?

In general, May is the cheapest month to fly from London to Southeast Asia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 48,058. If you aren’t able to travel during the month of May, then book flights to Southeast Asia from London during September instead. Flights to Southeast Asia in September, while not as cheap as those in May, still average around ₹ 65,831.

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 Thursday. Travellers who choose to depart for Southeast Asia on a Thursday will often find tickets for as low as ₹ 87,703. The most expensive day to fly to Southeast Asia is Wednesday, with ticket prices averaging around ₹ 127,877.

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

According to our data, the cheapest time of day to fly to Southeast Asia is in the afternoon. momondo users have found flights departing from London to Southeast Asia in the afternoon for as low as ₹ 72,132. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are ₹ 117,495 on average. Flights to Southeast Asia from London in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London to Southeast Asia flight route?

Fly from London Gatwick to Singapore Changi 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 ₹ 85,265 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 ₹ 79,432 on momondo.

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

There are 3 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	13h 10m
Direct flights	Every day
Airports in Southeast Asia	295 airports

The fastest flight from London to Southeast Asia takes 13h 10m

Direct flights go from London to Southeast Asia every day.

There are 295 airports in Southeast Asia. From London there are direct flights to Singapore Changi (SIN).

Search flight deals

When did momondo last update prices for flights from London to Southeast Asia?
Prices for flights from London to Southeast Asia refresh daily.
How old do you have to be to fly from London to Southeast Asia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required travel and health documents for your Southeast Asia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London to Southeast Asia?
Based on momondo bookings for flights between London and Southeast Asia, the leading plane model is Boeing 787-9 Dreamliner, making up 18.41% of the total bookings. Other popular models include Airbus A350-1000 with 16.61%, Boeing 777 with 10.75%, and Boeing 777-300ER with 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
EVA Air	PriceFrom ₹ 87,703	Free Cancellation	Rating 8.5 1,297 reviews		Search EVA Air 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?

momondo helps you find the best flight between London and Southeast Asia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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.