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Cheap flights from London to Southeast Asia from $519

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 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London to Southeast Asia

Cheap return flights

Logo
06:30 - 19:50STN-KUL
30h 20m2 stops
Logo
18:15 - 20:25KUL-STN
34h 10m2 stops
$1,052
Find Deal
Wed, 15 Oct - Mon, 27 Oct
KLM Logo
17:05 - 15:40LCY-KUL
14h 35m1 stop
KLM Logo
23:50 - 07:15KUL-LCY
15h 25m1 stop
$1,055KLM
Find Deal
Fri, 28 Nov - Wed, 10 Dec
KLM Logo
09:20 - 15:40LCY-KUL
22h 20m1 stop
KLM Logo
23:50 - 07:15KUL-LCY
15h 25m1 stop
$1,066KLM
Find Deal
Wed, 29 Oct - Thu, 4 Dec
KLM Logo
10:00 - 15:40LCY-KUL
21h 40m1 stop
KLM Logo
23:50 - 07:15KUL-LCY
15h 25m1 stop
$1,067KLM
Find Deal
Tue, 11 Nov - Thu, 11 Dec
KLM Logo
17:05 - 15:40LCY-KUL
14h 35m1 stop
KLM Logo
23:50 - 07:15KUL-LCY
15h 25m1 stop
$1,094KLM
Find Deal
Tue, 18 Nov - Mon, 8 Dec
Logo
13:15 - 00:35LTN-KUL
28h 20m2 stops
Logo
02:15 - 23:10KUL-LTN
28h 55m2 stops
$1,114
Find Deal
Wed, 15 Oct - Sun, 26 Oct
SWISS Logo
19:10 - 00:20LCY-DPS
21h 10m2 stops
SWISS Logo
13:00 - 08:35DPS-LCY
27h 35m2 stops
$1,281SWISS
Find Deal
Tue, 28 Oct - Wed, 25 Mar
SWISS Logo
19:20 - 00:20LCY-DPS
21h 00m2 stops
SWISS Logo
13:05 - 12:30DPS-LCY
30h 25m3 stops
$1,288SWISS
Find Deal
Sun, 1 Mar - Wed, 1 Apr
Emirates Logo
20:15 - 08:30STN-KUL
28h 15m1 stop
Emirates Logo
18:25 - 12:05KUL-STN
25h 40m1 stop
$1,395Emirates
Find Deal
Mon, 2 Mar - Thu, 5 Mar
Emirates Logo
14:05 - 14:45STN-KUL
16h 40m1 stop
Emirates Logo
01:25 - 12:05KUL-STN
18h 40m1 stop
$1,397Emirates
Find Deal
Thu, 6 Nov - Mon, 24 Nov

KLM flights from London to Southeast Asia

Our best KLM deals on London to Southeast Asia flight tickets
KLM
28 Nov
LCY17:05London City
14h 35m
1 stop
KUL15:40Kuala Lumpur Intl
10 Dec
KUL23:50Kuala Lumpur Intl
15h 25m
1 stop
LCY07:15London City
$1,055
Find similar
KLM
29 Oct
LCY09:20London City
22h 20m
1 stop
KUL15:40Kuala Lumpur Intl
4 Dec
KUL23:50Kuala Lumpur Intl
15h 25m
1 stop
LCY07:15London City
$1,066
Find similar
KLM
11 Nov
LCY10:00London City
21h 40m
1 stop
KUL15:40Kuala Lumpur Intl
11 Dec
KUL23:50Kuala Lumpur Intl
15h 25m
1 stop
LCY07:15London City
$1,067
Find similar

Emirates flights from London to Southeast Asia

Our best Emirates deals on London to Southeast Asia flight tickets
Emirates
28 Sept
STN21:10London Stansted
28h 30m
1 stop
KUL08:40Kuala Lumpur Intl
24 Nov
KUL01:25Kuala Lumpur Intl
18h 40m
1 stop
STN12:05London Stansted
$1,395
Find similar
Emirates
6 Nov
STN14:05London Stansted
16h 40m
1 stop
KUL14:45Kuala Lumpur Intl
24 Nov
KUL01:25Kuala Lumpur Intl
18h 40m
1 stop
STN12:05London Stansted
$1,396
Find similar
Emirates
27 Feb
STN20:15London Stansted
17h 40m
1 stop
KUL21:55Kuala Lumpur Intl
9 Mar
KUL18:25Kuala Lumpur Intl
25h 40m
1 stop
STN12:05London Stansted
$1,436
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 15 September 2025.
Use the filters below to find and compare flights from London to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Wed 15/10

06:30-19:50

2 stops30h 20m

Kuala Lumpur Intl

Mon 27/10

18:15-20:25

2 stops34h 10m

$1,052

LondonKuala Lumpur

LCY - KUL

LCYKUL

London City

Fri 28/11

17:05-15:40

1 stop14h 35m

Kuala Lumpur Intl

Wed 10/12

23:50-07:15

1 stop15h 25m

$1,055

LondonKuala Lumpur

LCY - KUL

LCYKUL

London City

Wed 29/10

09:20-15:40

1 stop22h 20m

Kuala Lumpur Intl

Thu 4/12

23:50-07:15

1 stop15h 25m

$1,066

LondonKuala Lumpur

LCY - KUL

LCYKUL

London City

Tue 11/11

10:00-15:40

1 stop21h 40m

Kuala Lumpur Intl

Thu 11/12

23:50-07:15

1 stop15h 25m

$1,067

LondonKuala Lumpur

LCY - KUL

LCYKUL

London City

Tue 18/11

17:05-15:40

1 stop14h 35m

Kuala Lumpur Intl

Mon 8/12

23:50-07:15

1 stop15h 25m

$1,094

LondonKuala Lumpur

LTN - KUL

LTNKUL

London Luton

Wed 15/10

13:15-00:35

2 stops28h 20m

Kuala Lumpur Intl

Sun 26/10

02:15-23:10

2 stops28h 55m

$1,114

LondonDenpasar

LCY - DPS

LCYDPS

London City

Tue 28/10

19:10-00:20

2 stops21h 10m

Denpasar Bali Ngurah Rai

Wed 25/3

13:00-08:35

2 stops27h 35m

$1,281

LondonDenpasar

LCY - DPS

LCYDPS

London City

Sun 1/3

19:20-00:20

2 stops21h 00m

Denpasar Bali Ngurah Rai

Wed 1/4

13:05-12:30

3 stops30h 25m

$1,288

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Mon 2/3

20:15-08:30

1 stop28h 15m

Kuala Lumpur Intl

Thu 5/3

18:25-12:05

1 stop25h 40m

$1,395

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Thu 6/11

14:05-14:45

1 stop16h 40m

Kuala Lumpur Intl

Mon 24/11

01:25-12:05

1 stop18h 40m

$1,396

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

The cheapest month to fly to Southeast Asia from London is in March. Flight prices, which tend to average around $846, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Southeast Asia, with average flight prices from London averaging around $1,372.

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 $1,405. On the other hand, Thursday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $2,106.

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

In the morning is the cheapest time of day to fly from London to Southeast Asia when you can find flight prices for as low as $1,462. Flying to Southeast Asia in the morning is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive, with an average ticket price of $1,656.

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 $1,642 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 $1,514 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

Direct flights

None
There are no direct flights from London to Southeast Asia. There are no popular flight routes from London to Southeast Asia.
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 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 stopovers. 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 travel and health documents you'll need for your trip to Southeast Asia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Southeast Asia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • 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
Airline
Rating
Free cancellation
Price
Etihad AirwaysPriceFrom $1,058Free cancellationRating
7.4
1,250 reviews
Search Etihad Airways flights
Thai AirwaysPriceFrom $1,161Free cancellationRating
7.8
350 reviews
Search Thai Airways 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?

momondo does allow users to show only those flights to Southeast Asia from London which offer a flexible booking policy as well as other useful filters and features.

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?

Of course. momondo tracks the price of London to Southeast Asia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Southeast Asia trip

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