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Cheap flights from London to Southeast Asia from $284

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 2/4. 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 round-trip flights

These are some of the best round-trip flight deals from London to Southeast Asia that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London to Southeast Asia.

Cheap last minute flights

Planning a quick getaway from London to Southeast Asia? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Southeast Asia, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from London to Southeast Asia

Find recent round-trip train or bus tickets from London to Southeast Asia.

All round-trip flight deals to Southeast Asia

The cheapest plane tickets to Southeast Asia found on KAYAK recently.
8:30 pm - 6:50 pmLHR-SIN
38h 20m1 stop
7:50 pm - 7:00 pmSIN-LHR
30h 10m1 stop
$486Air India
Find Deal
Tue, Mar 18 - Tue, Apr 8
1:00 pm - 6:50 pmLHR-SIN
21h 50m1 stop
7:50 pm - 11:05 amSIN-LHR
23h 15m1 stop
$505Air India
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Sat, Mar 8 - Mon, Mar 24
11:40 am - 4:15 pmLGW-SIN
20h 35m1 stop
5:50 pm - 6:55 amSIN-LGW
21h 05m1 stop
$536Air China
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Tue, Feb 11 - Tue, Mar 4
11:40 am - 12:40 amLGW-BKK
30h 00m1 stop
1:40 am - 6:55 amBKK-LGW
36h 15m1 stop
$543Air China
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Sat, Feb 22 - Fri, Mar 7
9:30 pm - 10:50 amLHR-MNL
29h 20m2 stops
5:40 pm - 6:15 pmMNL-LHR
32h 35m1 stop
$543China Southern
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Thu, Feb 20 - Tue, Mar 11
10:00 pm - 7:40 amLHR-DPS
25h 40m1 stop
8:35 am - 6:15 pmDPS-LHR
41h 40m1 stop
$554China Southern
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Sun, Feb 23 - Thu, Mar 6
9:00 pm - 5:25 amLHR-SIN
24h 25m1 stop
12:25 am - 5:30 pmSIN-LHR
25h 05m1 stop
$641China Eastern
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Tue, Feb 11 - Mon, Mar 3
9:00 pm - 3:40 amLHR-MNL
22h 40m1 stop
4:55 am - 5:30 pmMNL-LHR
20h 35m1 stop
$651China Eastern
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Thu, Feb 20 - Tue, Mar 11
10:15 am - 6:20 amLGW-SIN
13h 05mnonstop
11:55 pm - 6:25 amSIN-LGW
13h 30mnonstop
$704Singapore Airlines
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Mon, Apr 28 - Mon, May 12
10:15 am - 6:20 amLGW-SIN
13h 05mnonstop
11:55 pm - 6:25 amSIN-LGW
13h 30mnonstop
$707Singapore Airlines
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Thu, May 1 - Mon, May 19
6:35 am - 5:20 pmLGW-SIN
26h 45m2 stops
Tue, Feb 4
3:10 pm - 2:40 pmLGW-BKK
40h 30m2 stops
Sat, Mar 29
11:40 am - 4:15 pmLGW-SIN
20h 35m1 stop
$392Air China
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Fri, Jan 10
11:40 am - 12:40 amLGW-BKK
30h 00m1 stop
$401Air China
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Sat, Feb 22
10:30 am - 12:45 amLGW-BKK
31h 15m3 stops
$402China Eastern
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Thu, Feb 27
10:00 pm - 2:45 pmLHR-SGN
33h 45m1 stop
$409China Southern
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Wed, Jan 15
10:00 pm - 10:50 amLHR-MNL
28h 50m1 stop
$410China Southern
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Fri, Jan 10
10:05 pm - 7:00 pmLHR-SIN
12h 55mnonstop
$413Singapore Airlines
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Thu, Mar 6
9:10 am - 6:45 pmLHR-BKK
26h 35m1 stop
$417Singapore Airlines
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Tue, Mar 18
10:30 am - 11:40 pmLGW-SIN
29h 10m2 stops
$435China Eastern
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Thu, Feb 27
6:10 pm - 11:05 pmLHR-HKT
45h 55m2 stops
7:50 pm - 6:25 pmHKT-LHR
29h 35m1 stop
Fri, Dec 27 - Thu, Mar 13
3:45 pm - 4:15 pmLHR-SIN
16h 30m1 stop
10:55 pm - 1:45 pmSIN-LHR
22h 50m1 stop
$1,059
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Tue, Dec 24 - Mon, Dec 30
9:10 am - 8:10 amLHR-KUL
15h 00m1 stop
8:55 am - 7:10 pmKUL-LHR
18h 15m1 stop
$1,348Singapore Airlines
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Thu, Dec 26 - Mon, Jan 20
9:10 am - 6:00 amLHR-SIN
12h 50mnonstop
9:00 am - 3:35 pmSIN-LHR
14h 35mnonstop
$1,373Singapore Airlines
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Thu, Dec 26 - Sun, Jan 26
9:30 pm - 5:55 pmLHR-BKK
37h 25m2 stops
2:10 am - 6:15 pmBKK-LHR
23h 05m1 stop
$1,392China Southern
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Wed, Dec 25 - Mon, Jan 20
9:30 pm - 10:50 amLHR-MNL
29h 20m2 stops
8:20 am - 8:50 pmMNL-LHR
20h 30m2 stops
$1,400China Southern
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Wed, Dec 25 - Wed, Jan 22
5:50 pm - 10:00 pmLHR-HKT
21h 10m1 stop
12:20 am - 5:30 pmHKT-LHR
24h 10m1 stop
$1,455China Eastern
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Fri, Dec 27 - Wed, Mar 12
5:50 pm - 10:25 pmLHR-BKK
21h 35m1 stop
1:55 am - 1:55 pmBKK-LHR
19h 00m1 stop
$1,510China Eastern
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Tue, Dec 24 - Mon, Jan 20
3:30 pm - 2:40 pmLHR-KUL
15h 10m1 stop
2:25 am - 5:25 pmKUL-LHR
23h 00m1 stop
$1,669Qatar Airways
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Tue, Dec 24 - Wed, Dec 25
2:15 pm - 2:40 pmLHR-KUL
16h 25m1 stop
2:25 am - 5:25 pmKUL-LHR
23h 00m1 stop
$1,674Qatar Airways
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Tue, Dec 24 - Wed, Dec 25
6:55 pm - 3:55 pmLHR-SIN
13h 00mnonstop
11:15 pm - 5:40 amSIN-LHR
14h 25mnonstop
$685British Airways
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Thu, Jan 16 - Fri, Feb 14
6:55 pm - 3:55 pmLHR-SIN
13h 00mnonstop
11:15 pm - 5:40 amSIN-LHR
14h 25mnonstop
$687British Airways
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Thu, Jan 23 - Fri, Feb 14
10:15 am - 6:20 amLGW-SIN
13h 05mnonstop
11:55 pm - 6:25 amSIN-LGW
13h 30mnonstop
$704Singapore Airlines
Find Deal
Mon, Apr 28 - Mon, May 12
10:15 am - 6:20 amLGW-SIN
13h 05mnonstop
11:55 pm - 6:25 amSIN-LGW
13h 30mnonstop
$707Singapore Airlines
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Thu, May 1 - Mon, May 19
9:25 pm - 6:20 pmLHR-KUL
12h 55mnonstop
9:25 am - 3:25 pmKUL-LHR
14h 00mnonstop
$780Malaysia Airlines
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Wed, Jan 22 - Thu, Jan 30
9:25 pm - 6:20 pmLHR-KUL
12h 55mnonstop
9:25 am - 3:25 pmKUL-LHR
14h 00mnonstop
$781Malaysia Airlines
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Wed, Jan 22 - Wed, Jan 29
12:30 pm - 6:00 amLHR-BKK
11h 30mnonstop
12:50 pm - 7:10 pmBKK-LHR
12h 20mnonstop
$877Thai Airways
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Tue, Apr 29 - Mon, May 26
7:10 pm - 1:40 pmLHR-SGN
12h 30mnonstop
10:30 am - 5:50 pmSGN-LHR
13h 20mnonstop
$879Vietnam Airlines
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Thu, May 1 - Tue, May 20
9:25 pm - 3:00 pmLHR-BKK
11h 35mnonstop
12:50 pm - 7:10 pmBKK-LHR
12h 20mnonstop
$880Thai Airways
Find Deal
Fri, May 2 - Thu, May 15
7:50 pm - 2:20 pmLHR-SGN
12h 30mnonstop
9:35 am - 4:55 pmSGN-LHR
13h 20mnonstop
$882Vietnam Airlines
Find Deal
Tue, Jun 10 - Thu, Jul 10

Finnair flights from London to Southeast Asia

Our best Finnair deals on London to Southeast Asia flight tickets
Finnair
May 29
LHR9:30 amLondon Heathrow
38h 00m
1 stop
BKK5:30 amBangkok Suvarnabhumi
Jun 17
BKK7:05 amBangkok Suvarnabhumi
21h 05m
1 stop
LHR10:10 pmLondon Heathrow
Finnair
Jan 4
LHR1:10 pmLondon Heathrow
33h 55m
1 stop
BKK6:05 amBangkok Suvarnabhumi
Apr 23
BKK7:05 amBangkok Suvarnabhumi
21h 05m
1 stop
LHR10:10 pmLondon Heathrow

KLM flights from London to Southeast Asia

Our best KLM deals on London to Southeast Asia flight tickets
KLM
Mar 30
LHR8:40 amLondon Heathrow
18h 25m
2 stops
BKK9:05 amBangkok Suvarnabhumi
Jun 10
BKK12:05 pmBangkok Suvarnabhumi
26h 55m
1 stop
LHR9:00 amLondon Heathrow
KLM
Dec 31
LHR3:45 pmLondon Heathrow
16h 00m
1 stop
KUL3:45 pmKuala Lumpur Intl
Jan 20
KUL7:25 pmKuala Lumpur Intl
23h 20m
2 stops
LHR10:45 amLondon Heathrow

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 month of May is, on average, the cheapest month to fly to Southeast Asia from London, with most prices found around $826. If you don’t want to visit Southeast Asia in May, then you should wait until September to fly from London, when ticket prices are also cheap, with an average price of $832.

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 Tuesday when prices can be found for as low as $875. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $972. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Asia.

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

In the afternoon is the cheapest time of day to fly from London to Southeast Asia when you can find flight prices for as low as $798. Flying to Southeast Asia in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $995. 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 Heathrow to Bangkok Suvarnabhumi for the best London - Southeast Asia flight prices

How far in advance should I book a flight to Southeast Asia?

We recommend purchasing flights from London to Southeast Asia 50 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Southeast Asia for $931. 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 $863 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?

You could potentially save up to 31% on your flight if you consider stops on a London to Southeast Asia flight.

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

Best Price Found

$284

Fastest flight time

11h 25m

Direct flights

Every day

Airports in Southeast Asia

6 airports
The best one-way flight to Southeast Asia from London in the past 72 hours is $284. The best round-trip flight deal from London to Southeast Asia found on momondo in the last 72 hours is $486.
The fastest flight from London to Southeast Asia takes 11h 25m
Direct flights go from London to Southeast Asia every day.
There are 6 airports near Southeast Asia: Phuket City (HKT), Bangkok Suvarnabhumi (BKK), Denpasar Bali Ngurah Rai (DPS), Singapore Changi (SIN), Manila Ninoy Aquino Intl (MNL), Ho Chi Minh City (SGN)

  • 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?

  • 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?


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
China SouthernPriceFrom $450Free CancellationRating
7.5
90 reviews
Search China Southern flights
China EasternPriceFrom $515Free CancellationRating
7.0
148 reviews
Search China Eastern flights
Shenzhen AirlinesPriceFrom $518Free CancellationRating
5.8
12 reviews
Search Shenzhen Airlines flights
Air IndiaPriceFrom $613Free CancellationRating
5.5
2,922 reviews
Search Air India flights
Gulf AirPriceFrom $626Free CancellationRating
7.2
222 reviews
Search Gulf Air flights
Etihad AirwaysPriceFrom $654Free CancellationRating
7.3
1,208 reviews
Search Etihad Airways flights
Kuwait AirwaysPriceFrom $673Free CancellationRating
7.1
308 reviews
Search Kuwait Airways flights
SAUDIAPriceFrom $679Free CancellationRating
7.4
709 reviews
Search SAUDIA flights
SWISSPriceFrom $679Free CancellationRating
7.5
1,605 reviews
Search SWISS flights
Oman AirPriceFrom $682Free CancellationRating
8.0
96 reviews
Search Oman 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?

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?

Price alerts on flights to Southeast Asia from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


An easier way to manage your Southeast Asia trip

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Popular cities in Southeast Asia

Popular flights according to clicks in the last 7 days on momondo