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Cheap flights from London to Southeast Asia from S$ 513

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 9-3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BKK
27 Feb — 6 Mar1
1 adult

Cheap 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 22 February 2025.

Round-trip from

S$ 816

One-way from

S$ 513

Popular in

December

Cheapest in

May

Average price

S$ 1,110
Air China
  • Air China
  • 1-4-9-4
  • 2 total stops
  • 52h 40m total
  • London to Southeast Asia
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9-3
  • 9-3
  • 1 total stop
  • 20h 40m total
  • London to Southeast Asia
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Highest demand for flights based on searches. 6% potential increase in price (S$ 112 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 51 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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Find flight deals from London to Southeast Asia

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 22 February 2025.

Tue 1-420:25LHR - BKK
1 stop21h 45mAir China
Wed 9-419:35BKK - LHR
1 stop30h 55mAir China
Deal found 21-2S$ 816
Sun 7-921:55LHR - SIN
1 stop28h 50mEtihad Airways
Tue 23-921:10SIN - LHR
1 stop25h 05mEtihad Airways
Deal found 21-2S$ 823
Fri 28-221:00LHR - SIN
2 stops22h 45mHainan Airlines
Sun 23-312:15SIN - LHR
2 stops37h 40mHainan Airlines
Deal found 21-2S$ 824
Fri 7-322:00LHR - SIN
1 stop21h 05mChina Southern
Tue 25-303:55SIN - LHR
1 stop22h 20mChina Southern
Deal found 21-2S$ 826
Mon 10-310:30LGW - SIN
1 stop20h 30mChina Eastern
Mon 17-318:30SIN - LGW
1 stop20h 00mChina Eastern
Deal found 21-2S$ 827
Fri 28-211:40LGW - SIN
1 stop20h 35mAir China
Fri 7-317:50SIN - LGW
1 stop21h 05mAir China
Deal found 21-2S$ 831
Mon 24-317:50LHR - SIN
1 stop20h 10mChina Eastern
Mon 14-418:10SIN - LHR
1 stop31h 30mChina Eastern
Deal found 22-2S$ 835
Sun 20-415:45LTN - SIN
1 stop27h 05mMultiple Airlines
Thu 8-501:30SIN - LTN
1 stop21h 45mMultiple Airlines
Deal found 21-2S$ 836
Thu 1-510:00LHR - SIN
1 stop19h 20mGulf Air
Sun 18-520:00SIN - LHR
1 stop17h 55mGulf Air
Deal found 21-2S$ 836
Wed 5-1109:10LHR - SIN
Nonstop12h 50mSingapore Airlines
Wed 12-1109:00SIN - LHR
Nonstop14h 20mSingapore Airlines
Deal found 21-2S$ 839
Fri 14-321:10LHR - SIN
1 stop19h 45mShenzhen Airlines
Fri 21-318:30SIN - LHR
1 stop32h 40mShenzhen Airlines
Deal found 21-2S$ 842
Mon 7-422:00LHR - BKK
2 stops30h 00mHainan Airlines
Thu 10-419:10BKK - LHR
2 stops30h 20mHainan Airlines
Deal found 21-2S$ 842

Find flights from London to Southeast Asia within your budget

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 200,618 searches. Data last updated 22 February 2025.

Fly from

London

Fly to

Southeast Asia

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 1-4

20:25-00:10

1 stop21h 45m

Bangkok Suvarnabhumi

Wed 9-4

19:35-20:30

1 stop30h 55m

S$ 816

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 7-3

22:00-03:05

1 stop21h 05m

Singapore Changi

Tue 25-3

03:55-18:15

1 stop22h 20m

S$ 826

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 9-3

09:00-09:35

1 stop16h 35m

Singapore Changi

Fri 14-3

19:25-06:45

1 stop19h 20m

S$ 827

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

Mon 10-3

10:30-15:00

1 stop20h 30m

Singapore Changi

Mon 17-3

18:30-06:30

1 stop20h 00m

S$ 827

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 17-3

21:00-03:45

2 stops22h 45m

Singapore Changi

Thu 20-3

04:50-17:35

2 stops44h 45m

S$ 832

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 24-3

17:50-22:00

1 stop20h 10m

Singapore Changi

Mon 14-4

18:10-18:40

1 stop31h 30m

S$ 835

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 1-5

10:00-12:20

1 stop19h 20m

Singapore Changi

Sun 18-5

20:00-06:55

1 stop17h 55m

S$ 836

LondonSingapore

LTN - SIN

LTNSIN

London Luton

Tue 13-5

07:10-01:50

1 stop35h 40m

Singapore Changi

Mon 19-5

16:00-16:05

2 stops31h 05m

S$ 840

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 14-3

21:10-00:55

1 stop19h 45m

Singapore Changi

Fri 21-3

18:30-19:10

1 stop32h 40m

S$ 842

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 21-3

13:00-18:50

1 stop21h 50m

Singapore Changi

Sat 5-4

08:55-19:05

1 stop17h 10m

S$ 848

Flights are sorted by cheapest return flights first.

Deals found on 21-2

Showing 1-10 of 60 results
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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.

Travel insights for flights from London to Southeast Asia

Get recent, data-driven insights about flights from London to Southeast Asia including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from London to Southeast Asia (average of S$ 134). Flying from London to Southeast Asia in December is currently the most expensive (average of S$ 230). 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 22 February 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Southeast Asia as you normally would.

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 22 February 2025.

The most flights from LON to zzYJX are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

Temperature in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

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 22 February 2025.
See what other customers who have flown with EVA Air, Garuda Indonesia and Singapore Airlines from London to Southeast Asia have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,199 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.0

Boarding

8.4

Comfort

8.2

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

EVA Air
8.4
Very Good
1,199 reviews
EVA Air
8.4
Very Good
1,199 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.0

Boarding

8.4

Comfort

8.2

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Garuda Indonesia
8.1
Very Good
76 reviews
EVA Air
8.4
Very Good
1,199 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.0

Boarding

8.4

Comfort

8.2

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Singapore Airlines
8.1
Very Good
1,297 reviews
EVA Air
8.4
Very Good
1,199 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.0

Boarding

8.4

Comfort

8.2

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Emirates
8.1
Very Good
3,276 reviews
EVA Air
8.4
Very Good
1,199 reviews
Check prices

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.0

Boarding

8.4

Comfort

8.2

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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.

  • What are the cheapest airlines to fly from London to Southeast Asia one-way?

    The cheapet airlines for a one-way flight from London to Southeast Asia are Singapore Airlines (S$ 516), Air China (S$ 522), and China Eastern (S$ 524).

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

    The most popular flight routes from London to Southeast Asia are London Heathrow - Singapore Changi, London Gatwick - Singapore Changi and London City - Singapore Changi.

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

    Consider Air Canada (59%), Thai Airways (51%) or EVA Air (43%) when booking your flight. These represent the most reliable airlines when flying from London to Southeast Asia.

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

    While on average a flight from London to Southeast Asia is generally S$ 880, our data shows the cheapest flight currently is S$ 542. When looking at the most popular route, (London Heathrow - Singapore Changi), you can expect to pay S$ 700 for that flight.

  • 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, January is the cheapest month in which you can book a flight from London to Southeast Asia (average of S$ 134). Flying from London to Southeast Asia in December is currently the most expensive (average of S$ 230). 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

Browse thousands of different options on Cheapflights for your next trip

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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 Singapore flights
Manchester to Singapore flights
Birmingham to Singapore flights
Newcastle upon Tyne to Singapore flights
Edinburgh to Singapore flights

Top 9 airlines flying from London to Southeast Asia

Discover the top 9 airlines that operate flights from London to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 22 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapestS$ 696AverageS$ 849FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapestS$ 842AverageS$ 1,111FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapestS$ 862AverageS$ 2,029FlexibilityNo cancel feeOn-time77%
Search Air France flights
Gulf AirCheapestS$ 879AverageS$ 1,066FlexibilityNo cancel feeOn-time67%
Search Gulf Air flights
British AirwaysCheapestS$ 943AverageS$ 1,174FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapestS$ 964AverageS$ 1,031FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Singapore AirlinesCheapestS$ 975AverageS$ 1,270FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
SWISSCheapestS$ 984AverageS$ 1,397FlexibilityNo cancel feeOn-time79%
Search SWISS flights
LufthansaCheapestS$ 1,041AverageS$ 1,527FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Southeast Asia.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Southeast Asia flexibly with Cheapflights today.

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

Yes! Start tracking prices for London to Southeast Asia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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