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

The number of flights available between London and Southeast Asia is 9 per day as of March 2026. The most frequent departure time is 9:00p.m., with 64% of daily flights leaving in the evening.

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

As of March 2026, there are 64 flights per week flying from London to Southeast Asia. The most common day of the week flights depart is Tue, with 16% of flights taking off on this day.

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

China Eastern, Shenzhen Airlines, and Qatar Airways 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 are refreshed on a daily basis.

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

The number of operators available for flights from London to Southeast Asia is 2 as of March 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

C$ 520 Cheap Flights from London to Southeast Asia in 2026

1 adult

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Find the cheapest flights from London to Southeast Asia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:20 p.m. - 9:55 p.m.

LHR

BKK

18h 35m

1 stop

5:05 a.m. - 6:40 p.m.

BKK

LHR

19h 35m

1 stop

C$ 790China Eastern

Wed, 13 May - Mon, 18 May

9:20 p.m. - 4:05 a.m.

LHR

BKK

24h 45m

1 stop

7:50 a.m. - 6:40 p.m.

BKK

LHR

40h 50m

2 stops

C$ 794China Eastern

Sun, 3 May - Mon, 18 May

10:10 p.m. - 12:05 a.m.

LHR

BKK

19h 55m

1 stop

3:25 p.m. - 7:30 a.m.

BKK

LHR

22h 05m

1 stop

C$ 796SAUDIA

Sun, 19 Apr - Sun, 28 Jun

6:00 p.m. - 6:05 p.m.

LGW

BKK

18h 05m

1 stop

9:05 p.m. - 6:30 a.m.

BKK

LGW

40h 25m

2 stops

C$ 797China Eastern

Wed, 8 Apr - Tue, 2 Feb

9:20 p.m. - 9:55 p.m.

LHR

BKK

18h 35m

1 stop

3:00 a.m. - 6:40 p.m.

BKK

LHR

21h 40m

2 stops

C$ 797China Eastern

Tue, 5 May - Sun, 17 May

10:10 p.m. - 12:05 a.m.

LHR

BKK

19h 55m

1 stop

3:25 p.m. - 7:30 a.m.

BKK

LHR

22h 05m

1 stop

C$ 798SAUDIA

Sun, 19 Apr - Sun, 21 Jun

10:05 p.m. - 6:15 p.m.

LHR

BKK

38h 10m

1 stop

7:15 p.m. - 7:50 p.m.

BKK

LHR

30h 35m

1 stop

C$ 800Shenzhen Airlines

Sat, 2 May - Sun, 24 May

10:05 p.m. - 11:10 a.m.

LHR

BKK

31h 05m

1 stop

3:15 a.m. - 8:00 p.m.

BKK

LHR

22h 45m

1 stop

C$ 804Shenzhen Airlines

Fri, 1 May - Tue, 12 May

3:35 p.m. - 12:35 p.m.

LGW

BKK

15h 00m

1 stop

10:35 p.m. - 8:55 a.m.

BKK

LGW

16h 20m

1 stop

C$ 848Condor

Sun, 31 May - Wed, 10 Jun

3:40 p.m. - 12:35 p.m.

LGW

BKK

14h 55m

1 stop

10:35 p.m. - 9:00 a.m.

BKK

LGW

16h 25m

1 stop

C$ 853Condor

Sat, 16 May - Tue, 2 Jun

SAUDIA flights from London to Southeast Asia

Our best SAUDIA deals on London to Southeast Asia flight tickets

SAUDIA

19 Apr

LHR10:10 p.m.London Heathrow

19h 55m

1 stop

BKK12:05 a.m.Bangkok Suvarnabhumi

28 Jun

BKK3:25 p.m.Bangkok Suvarnabhumi

22h 05m

1 stop

LHR7:30 a.m.London Heathrow

C$ 796

SAUDIA

19 Apr

LHR10:10 p.m.London Heathrow

19h 55m

1 stop

BKK12:05 a.m.Bangkok Suvarnabhumi

21 Jun

BKK3:25 p.m.Bangkok Suvarnabhumi

22h 05m

1 stop

LHR7:30 a.m.London Heathrow

C$ 798

SAUDIA

19 Apr

LHR10:10 p.m.London Heathrow

19h 55m

1 stop

BKK12:05 a.m.Bangkok Suvarnabhumi

30 May

BKK3:25 p.m.Bangkok Suvarnabhumi

22h 05m

1 stop

LHR7:30 a.m.London Heathrow

C$ 814

Shenzhen Airlines flights from London to Southeast Asia

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

Shenzhen Airlines

2 May

LHR10:05 p.m.London Heathrow

22h 10m

1 stop

BKK2:15 a.m.Bangkok Suvarnabhumi

31 May

BKK12:10 p.m.Bangkok Suvarnabhumi

37h 40m

1 stop

LHR7:50 p.m.London Heathrow

C$ 800

Shenzhen Airlines

1 May

LHR10:05 p.m.London Heathrow

38h 10m

1 stop

BKK6:15 p.m.Bangkok Suvarnabhumi

2 Jun

BKK12:10 p.m.Bangkok Suvarnabhumi

37h 50m

1 stop

LHR8:00 p.m.London Heathrow

C$ 804

Shenzhen Airlines

24 Apr

LHR10:05 p.m.London Heathrow

38h 10m

1 stop

BKK6:15 p.m.Bangkok Suvarnabhumi

8 May

BKK12:10 p.m.Bangkok Suvarnabhumi

37h 40m

1 stop

LHR7:50 p.m.London Heathrow

C$ 805

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 13/5

9:20 p.m.-9:55 p.m.

1 stop18h 35m

Bangkok Suvarnabhumi

Mon 18/5

5:05 a.m.-6:40 p.m.

1 stop19h 35m

C$ 790

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 3/5

9:20 p.m.-4:05 a.m.

1 stop24h 45m

Bangkok Suvarnabhumi

Mon 18/5

7:50 a.m.-6:40 p.m.

2 stops40h 50m

C$ 794

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 19/4

10:10 p.m.-12:05 a.m.

1 stop19h 55m

Bangkok Suvarnabhumi

Sun 28/6

3:25 p.m.-7:30 a.m.

1 stop22h 05m

C$ 796

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 8/4

6:00 p.m.-6:05 p.m.

1 stop18h 05m

Bangkok Suvarnabhumi

Tue 2/2

9:05 p.m.-6:30 a.m.

2 stops40h 25m

C$ 797

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 5/5

9:20 p.m.-9:55 p.m.

1 stop18h 35m

Bangkok Suvarnabhumi

Sun 17/5

3:00 a.m.-6:40 p.m.

2 stops21h 40m

C$ 797

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 19/4

10:10 p.m.-12:05 a.m.

1 stop19h 55m

Bangkok Suvarnabhumi

Sun 21/6

3:25 p.m.-7:30 a.m.

1 stop22h 05m

C$ 798

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 2/5

10:05 p.m.-6:15 p.m.

1 stop38h 10m

Bangkok Suvarnabhumi

Sun 24/5

7:15 p.m.-7:50 p.m.

1 stop30h 35m

C$ 800

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 1/5

10:05 p.m.-11:10 a.m.

1 stop31h 05m

Bangkok Suvarnabhumi

Tue 12/5

3:15 a.m.-8:00 p.m.

1 stop22h 45m

C$ 804

Quickest round-trip

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 31/5

3:35 p.m.-12:35 p.m.

1 stop15h 00m

Bangkok Suvarnabhumi

Wed 10/6

10:35 p.m.-8:55 a.m.

1 stop16h 20m

C$ 848

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sat 16/5

3:40 p.m.-12:35 p.m.

1 stop14h 55m

Bangkok Suvarnabhumi

Tue 2/6

10:35 p.m.-9:00 a.m.

1 stop16h 25m

C$ 853

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 cheapest month to fly to Southeast Asia from London is in May. Flight prices, which tend to average around C$ 1,052, are often lower during this time because this is during the off-season. If you don’t want to visit Southeast Asia in May, then you should wait until November to fly from London, when ticket prices are also cheap, with an average price of C$ 1,058.

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 C$ 1,323 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 C$ 1,244 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	11h 25m
Direct flights	Every day
Airports in Southeast Asia	295 airports

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

Direct flights go from London to Southeast Asia every day.

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 refreshed on a daily basis.
How many operators does momondo search for flights from London to Southeast Asia?
The number of operators available for flights from London to Southeast Asia is 2 as of March 2026.
How old do you have to be to fly from London to Southeast Asia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 (19.20% of total bookings). The next most popular plane models are Airbus A350-1000 (17.05%), Boeing 777 (10.59%), and Boeing 777-300ER (10.13%).

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
Air China	PriceFrom C$ 765	Free Cancellation	Rating 7.3 141 reviews		Search Air China flights
EVA Air	PriceFrom C$ 1,240	Free Cancellation	Rating 8.4 1,373 reviews		Search EVA Air flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Southeast Asia for you.

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

Yes. momondo enables you to select and highlight flights to Southeast Asia from London with this policy.

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?

If you are simply researching potential flights to Southeast Asia, momondo offers a useful price alert feature which will track prices for flights to Southeast Asia from London and alert you when they change.