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Cheap flights from London to Southeast Asia from $581

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BKK
30 May — 6 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from London to Southeast Asia
Explore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2026.

Fri 30/1009:50
LCY
-
KUL
1 stop22h 50m
Lufthansa
Sun 29/1123:55
KUL
-
LCY
1 stop17h 20m
Lufthansa
Deal found 30/4$1,215
Thu 11/617:35
STN
-
KUL
1 stop55h 35m
Turkish Airlines
Thu 18/609:50
KUL
-
STN
1 stop19h 20m
Turkish Airlines
Deal found 27/4$1,311
Tue 30/606:55
STN
-
KUL
1 stop42h 15m
Turkish Airlines
Sat 25/709:50
KUL
-
STN
1 stop37h 50m
Turkish Airlines
Deal found 29/4$1,321
Thu 28/517:35
STN
-
KUL
1 stop40h 40m
Turkish Airlines
Fri 5/609:50
KUL
-
STN
1 stop31h 05m
Turkish Airlines
Deal found 30/4$1,322
Wed 3/606:55
STN
-
KUL
1 stop17h 25m
Turkish Airlines
Wed 1/723:25
KUL
-
STN
1 stop24h 15m
Turkish Airlines
Deal found 25/4$1,332
Tue 28/406:55
STN
-
KUL
1 stop18h 15m
Turkish Airlines
Thu 23/709:50
KUL
-
STN
1 stop19h 20m
Turkish Airlines
Deal found 25/4$1,333
Thu 10/921:05
STN
-
KUL
1 stop17h 45m
Emirates
Wed 23/902:15
KUL
-
STN
1 stop17h 40m
Emirates
Deal found 27/4$1,353
Thu 10/914:55
STN
-
KUL
1 stop23h 55m
Emirates
Tue 22/910:20
KUL
-
STN
1 stop15h 25m
Emirates
Deal found 29/4$1,354
Thu 14/514:55
STN
-
KUL
1 stop16h 30m
Emirates
Thu 28/510:20
KUL
-
STN
1 stop15h 25m
Emirates
Deal found 28/4$1,356
Mon 18/514:55
STN
-
KUL
1 stop23h 55m
Emirates
Wed 27/510:20
KUL
-
STN
1 stop15h 25m
Emirates
Deal found 26/4$1,357
Mon 16/1109:50
LCY
-
KUL
1 stop22h 50m
Lufthansa
Sun 29/1123:55
KUL
-
LCY
1 stop17h 20m
Lufthansa
Deal found 25/4$1,388
Mon 16/1109:50
LCY
-
KUL
1 stop22h 50m
Lufthansa
Thu 3/1223:55
KUL
-
LCY
1 stop17h 20m
Lufthansa
Deal found 29/4$1,389

Find flight deals from London to Southeast Asia

Keep the following information in mind while searching for London to Southeast Asia flight deals. Data was last updated 30 April 2026.

Round-trip from

$1,311

One-way from

$581

Popular in

December

Cheapest in

May

Average price

$1,147
Turkish Airlines
  • Turkish Airlines
  • 11/6-18/6
  • 2 total stops
  • 74h 55m total
  • London to Southeast Asia
Search Deals
7/6
  • 7/6
  • 2 total stops
  • 27h 40m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($89 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($48 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights 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, Cheapflights users made 647,157 searches. Data last updated 30 April 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

Cheapest return flight
Fastest return journey

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Mon 14/9

14:55-14:25

1 stop16h 30m

Kuala Lumpur Intl

Mon 28/9

10:20-18:45

1 stop15h 25m

$1,353

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Sun 6/9

14:55-21:50

1 stop23h 55m

Kuala Lumpur Intl

Tue 15/12

10:15-17:55

1 stop15h 40m

$1,354

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Sun 7/6

14:55-14:25

1 stop16h 30m

Kuala Lumpur Intl

Tue 23/6

10:20-18:45

1 stop15h 25m

$1,357

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Wed 13/5

10:50-08:10

1 stop38h 20m

Kuala Lumpur Intl

Fri 12/6

09:50-09:55

1 stop31h 05m

$1,371

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Fri 11/9

14:55-14:25

1 stop16h 30m

Kuala Lumpur Intl

Mon 14/12

01:25-12:05

1 stop18h 40m

$1,392

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Sun 14/6

10:50-07:20

1 stop37h 30m

Kuala Lumpur Intl

Thu 2/7

09:50-09:55

1 stop31h 05m

$1,398

LondonKuala Lumpur

STN - KUL

STNKUL

London Stansted

Sun 25/10

20:15-21:55

1 stop17h 40m

Kuala Lumpur Intl

Wed 4/11

01:25-12:05

1 stop18h 40m

$1,419

LondonDenpasar

STN - DPS

STNDPS

London Stansted

Mon 1/6

21:05-22:25

1 stop18h 20m

Denpasar Bali Ngurah Rai

Thu 4/6

19:45-12:55

1 stop24h 10m

$1,461

LondonDenpasar

STN - DPS

STNDPS

London Stansted

Mon 15/6

21:05-22:25

1 stop18h 20m

Denpasar Bali Ngurah Rai

Tue 23/6

19:45-12:55

1 stop24h 10m

$1,462

LondonDenpasar

STN - DPS

STNDPS

London Stansted

Mon 11/5

14:55-22:25

1 stop24h 30m

Denpasar Bali Ngurah Rai

Tue 26/5

19:45-12:55

1 stop24h 10m

$1,462

Flights are sorted by cheapest return flights first.

Deals found on 25/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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6

Best time to book a flight from London to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Southeast Asia

How far ahead should I book a flight from London to Southeast Asia?

The price you pay for your flight from London to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 6 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London to Southeast Asia?

Currently, November is the cheapest month in which you can book a flight from London to Southeast Asia (average of $1,133). Flying from London to Southeast Asia in December is currently the most expensive (average of $1,924). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to YJX?

Find hourly flight availability from London to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2026.

When flying from London to Southeast Asia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 24% versus a flight in the morning.

Weekly flight availability from London to Southeast Asia

Explore weekly flight availability from London to Southeast Asia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 30 April 2026.

The most flights from LON to zzYJX are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated 30 April 2026.
See what other customers who have flown with Etihad Airways from London to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Etihad Airways
7.3
Good
1,434 reviews
Check prices

Comfort

7.3

Entertainment

7.2

Overall

7.3

Crew

7.8

Boarding

7.6

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

TRV - AUH

I liked the choice of food. The passenger next to me was continuously asking for wine to drink and thus was drunk which was uncomfortable.
Etihad Airways
7.3
Good
1,434 reviews
Etihad Airways
7.3
Good
1,434 reviews
Check prices

Comfort

7.3

Entertainment

7.2

Overall

7.3

Crew

7.8

Boarding

7.6

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

TRV - AUH

I liked the choice of food. The passenger next to me was continuously asking for wine to drink and thus was drunk which was uncomfortable.

Related info for your journey

Find useful and relevant information for your journey from London to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Southeast Asia?

    Emirates, Turkish Airlines, and KLM can get you from London to Southeast Asia in just under 16h 30m. Your travel time can differ by up to 3h 25m. Airlines will cover a distance of 10543 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from London to Southeast Asia?

    While some choose either London Stansted - Denpasar Bali Ngurah Rai or London City - Phuket City, London City - Denpasar Bali Ngurah Rai is the most popular route from London to Southeast Asia.

  • What are the most reliable airlines from London to Southeast Asia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Southeast Asia on time: Thai Airways (77%), Air Canada (74%), EVA Air (71%).

  • What are the cheapest flights from London to Southeast Asia?

    On average you can expect to pay $1,706 for a flight from London to Southeast Asia. The cheapest flight overall is $1,223 while the most popular route, (London City - Denpasar Bali Ngurah Rai) is currently priced at $854.

  • Can I find deals for flights from London to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on London to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Southeast Asia.

  • Can I find deals for business class flights from London to Southeast Asia?

    Yes. Cheapflights offers flight deals from London to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Southeast Asia?

    Currently, November is the cheapest month in which you can book a flight from London to Southeast Asia (average of $1,133). Flying from London to Southeast Asia in December is currently the most expensive (average of $1,924). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for London to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Singapore flights
Gatwick to Suvarnabhumi flights
Heathrow to Suvarnabhumi flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Southeast Asia?

When you search for this flight from London to Southeast Asia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from London to Southeast Asia?

Cheapflights helps you find that perfect flight to Southeast Asia from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Southeast Asia with no change fees?

Yes! Cheapflights helps users easily find flights from London to Southeast Asia with no change fees.

Can Cheapflights notify me if prices for flights from London to Southeast Asia become cheaper?

Not ready to book yet? You can track prices for flights from London to Southeast Asia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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