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Cheap flights from London to Southeast Asia from $839

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Southeast Asia departing on 19/3. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:10 - 11:30
STN
-
HKT
22h 20m
2 stops
Multiple Airlines Logo
22:05 - 00:20
HKT
-
STN
33h 15m
2 stops
$839Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
Multiple Airlines Logo
06:10 - 11:30
STN
-
HKT
22h 20m
2 stops
Multiple Airlines Logo
07:30 - 00:20
HKT
-
STN
47h 50m
3 stops
$894Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
KLM Logo
18:55 - 18:45
LCY
-
KUL
39h 50m
2 stops
KLM Logo
19:25 - 09:30
KUL
-
LCY
22h 05m
2 stops
$1,026KLM
Sun, 8 Mar - Thu, 19 Mar
Turkish Airlines Logo
06:15 - 07:20
STN
-
KUL
18h 05m
1 stop
Turkish Airlines Logo
09:50 - 22:10
KUL
-
STN
19h 20m
1 stop
$1,092Turkish Airlines
Tue, 14 Apr - Tue, 28 Apr
Turkish Airlines Logo
17:45 - 17:15
STN
-
KUL
40h 30m
1 stop
Turkish Airlines Logo
09:50 - 09:55
KUL
-
STN
31h 05m
1 stop
$1,135Turkish Airlines
Thu, 28 May - Tue, 9 Jun
KLM Logo
17:05 - 15:40
LCY
-
KUL
14h 35m
1 stop
KLM Logo
23:55 - 07:55
KUL
-
LCY
15h 00m
1 stop
$1,269KLM
Tue, 3 Mar - Tue, 26 May
SWISS Logo
13:10 - 00:10
LCY
-
DPS
28h 00m
2 stops
SWISS Logo
13:15 - 08:40
DPS
-
LCY
26h 25m
2 stops
$1,330SWISS
Mon, 1 Jun - Tue, 9 Jun
SWISS Logo
19:20 - 00:20
LCY
-
DPS
21h 00m
2 stops
SWISS Logo
10:30 - 08:40
DPS
-
LCY
30h 10m
2 stops
$1,350SWISS
Sun, 8 Mar - Sun, 22 Mar
Emirates Logo
20:15 - 22:20
STN
-
DPS
18h 05m
1 stop
Emirates Logo
19:50 - 12:05
DPS
-
STN
24h 15m
1 stop
$1,453Emirates
Thu, 12 Mar - Wed, 25 Mar
Emirates Logo
20:15 - 22:20
STN
-
DPS
18h 05m
1 stop
Emirates Logo
19:50 - 12:05
DPS
-
STN
24h 15m
1 stop
$1,455Emirates
Mon, 23 Feb - Mon, 9 Mar

Turkish Airlines flights from London to Southeast Asia

Our best Turkish Airlines deals on London to Southeast Asia flight tickets
Turkish Airlines
14 Apr
STN06:15London Stansted
18h 05m
1 stop
KUL07:20Kuala Lumpur Intl
28 Apr
KUL09:50Kuala Lumpur Intl
19h 20m
1 stop
STN22:10London Stansted
$1,092
Turkish Airlines
28 May
STN17:45London Stansted
40h 30m
1 stop
KUL17:15Kuala Lumpur Intl
9 June
KUL09:50Kuala Lumpur Intl
31h 05m
1 stop
STN09:55London Stansted
$1,135
Turkish Airlines
10 June
STN17:45London Stansted
31h 25m
1 stop
KUL08:10Kuala Lumpur Intl
19 June
KUL09:50Kuala Lumpur Intl
31h 05m
1 stop
STN09:55London Stansted
$1,163

Emirates flights from London to Southeast Asia

Our best Emirates deals on London to Southeast Asia flight tickets
Emirates
19 Feb
STN20:15London Stansted
17h 40m
1 stop
KUL21:55Kuala Lumpur Intl
10 Mar
KUL10:15Kuala Lumpur Intl
15h 40m
1 stop
STN17:55London Stansted
$1,350
Emirates
25 Feb
STN14:05London Stansted
16h 40m
1 stop
KUL14:45Kuala Lumpur Intl
10 Mar
KUL01:25Kuala Lumpur Intl
18h 40m
1 stop
STN12:05London Stansted
$1,351
Emirates
3 Mar
STN14:05London Stansted
16h 40m
1 stop
KUL14:45Kuala Lumpur Intl
25 May
KUL02:00Kuala Lumpur Intl
17h 55m
1 stop
STN12:55London Stansted
$1,354

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 3 February 2026.
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

LondonPhuket City

STN - HKT

STNHKT

London Stansted

Thu 19/3

06:10-11:30

2 stops22h 20m

Phuket City

Thu 26/3

22:05-00:20

2 stops33h 15m

$839

LondonPhuket City

STN - HKT

STNHKT

London Stansted

Thu 19/3

06:10-11:30

2 stops22h 20m

Phuket City

Thu 26/3

07:30-00:20

3 stops47h 50m

$894

LondonKuala Lumpur

LCY - KUL

LCYKUL

London City

Sun 8/3

18:55-18:45

2 stops39h 50m

Kuala Lumpur Intl

Thu 19/3

19:25-09:30

2 stops22h 05m

$1,026

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Tue 14/4

06:15-07:20

1 stop18h 05m

Kuala Lumpur Intl

Tue 28/4

09:50-22:10

1 stop19h 20m

$1,092

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Thu 28/5

17:45-17:15

1 stop40h 30m

Kuala Lumpur Intl

Tue 9/6

09:50-09:55

1 stop31h 05m

$1,135

LondonKuala Lumpur

LCY - KUL

LCYKUL

London City

Tue 3/3

17:05-15:40

1 stop14h 35m

Kuala Lumpur Intl

Tue 26/5

23:55-07:55

1 stop15h 00m

$1,269

LondonDenpasar

LCY - DPS

LCYDPS

London City

Mon 1/6

13:10-00:10

2 stops28h 00m

Denpasar Bali Ngurah Rai

Tue 9/6

13:15-08:40

2 stops26h 25m

$1,330

LondonDenpasar

LCY - DPS

LCYDPS

London City

Sun 8/3

19:20-00:20

2 stops21h 00m

Denpasar Bali Ngurah Rai

Sun 22/3

10:30-08:40

2 stops30h 10m

$1,350

LondonDenpasar

STN - DPS

STNDPS

London Stansted

Thu 12/3

20:15-22:20

1 stop18h 05m

Denpasar Bali Ngurah Rai

Wed 25/3

19:50-12:05

1 stop24h 15m

$1,453

LondonDenpasar

STN - DPS

STNDPS

London Stansted

Mon 23/2

20:15-22:20

1 stop18h 05m

Denpasar Bali Ngurah Rai

Mon 9/3

19:50-12:05

1 stop24h 15m

$1,455

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 November. Flight prices, which tend to average around $1,275, are often lower during this time because this is during the off-season. The month of May is another great option to travel to Southeast Asia, with average flight prices from London averaging around $1,288.

What is the cheapest London to Southeast Asia flight route?

Fly from London Heathrow 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 $1,540 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 $1,439 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 40m

Direct flights

None
The fastest flight from London to Southeast Asia takes 11h 40m
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
Thai AirwaysPriceFrom $1,111Free cancellationRating
7.8
381 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

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.
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