How long is the flight from London to Southeast Asia?

For as low as S$ 831, Gulf Air can have you in Southeast Asia from London in 17h 55m. The distance between London and Southeast Asia is about 10863 km. This flight may include one or multiple stops. Find deals

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$ 488), Air China (S$ 496), and Thai Airways (S$ 530). Find deals

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.

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).

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 Stansted - Singapore Changi.

What are the cheapest flights from London to Southeast Asia?

While on average a flight from London to Southeast Asia is generally S$ 1,592, our data shows the cheapest flight currently is S$ 1,404. When looking at the most popular route, (London Heathrow - Singapore Changi), you can expect to pay S$ 673 for that flight.

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

Consider EVA Air (90%), Thai Airways (87%) or Air Canada (83%) when booking your flight. These represent the most reliable airlines when flying from London to Southeast Asia.

What are the most popular airlines that fly from London to Southeast Asia?

When booking a flight from London to Southeast Asia, you may want to consider flying on Singapore Airlines, Lufthansa or British Airways as they are the most popular for this route.

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.

S$ 514+ Flights from London to Southeast Asia

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 3 December 2025.

Sun 7-1221:15LHR - SIN

1 stop21h 55mHainan Airlines

Sun 14-1212:15SIN - LHR

2 stops37h 40mHainan Airlines

Deal found 2-12S$ 820

Sun 7-1221:15LHR - SIN

1 stop21h 55mHainan Airlines

Tue 9-1212:15SIN - LHR

1 stop36h 05mHainan Airlines

Deal found 1-12S$ 825

Wed 31-1221:10LHR - SIN

1 stop31h 00mShenzhen Airlines

Tue 20-103:00SIN - LHR

1 stop24h 10mShenzhen Airlines

Deal found 1-12S$ 831

Thu 4-1206:25LGW - SIN

1 stop19h 35mTurkish Airlines

Thu 11-1210:25SIN - LGW

1 stop20h 10mTurkish Airlines

Deal found 1-12S$ 848

Fri 5-1221:00LHR - SIN

1 stop22h 10mHainan Airlines

Sun 7-1212:15SIN - LHR

1 stop37h 40mHainan Airlines

Deal found 1-12S$ 857

Thu 4-1210:20LGW - SIN

1 stop15h 40mTurkish Airlines

Mon 8-1211:40SIN - LGW

1 stop18h 55mTurkish Airlines

Deal found 2-12S$ 866

Sun 7-1221:15LHR - SIN

1 stop29h 55mHainan Airlines

Wed 10-1204:40SIN - LHR

1 stop44h 55mHainan Airlines

Deal found 1-12S$ 868

Sun 7-1206:20LGW - SIN

1 stop19h 40mTurkish Airlines

Thu 11-1210:25SIN - LGW

1 stop20h 10mTurkish Airlines

Deal found 1-12S$ 868

Thu 4-1211:45LHR - SIN

1 stop20h 30mKLM

Sun 7-1201:40SIN - LHR

1 stop17h 05mKLM

Deal found 2-12S$ 870

Tue 2-1209:00LHR - SIN

1 stop23h 55mMultiple Airlines

Sun 7-1201:40SIN - LHR

1 stop25h 35mMultiple Airlines

Deal found 1-12S$ 872

Wed 3-1211:30LHR - SIN

1 stop21h 25mAir France

Sun 7-1222:50SIN - LHR

1 stop17h 05mAir France

Deal found 1-12S$ 873

Wed 31-1221:10LHR - SIN

1 stop31h 00mShenzhen Airlines

Tue 13-118:30SIN - LHR

1 stop32h 40mShenzhen Airlines

Deal found 1-12S$ 882

Best flights from London to Southeast Asia
Discover carefully curated flight deals from London to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 December 2025.

Sun 1-314:30LTN - SIN

1 stop28h 50mMultiple Airlines

Tue 17-310:25SIN - LTN

1 stop20h 45mMultiple Airlines

Deal found 2-12S$ 822

Wed 11-310:35LGW - SIN

1 stop17h 55mGulf Air

Sat 21-320:00SIN - LGW

1 stop18h 20mGulf Air

Deal found 2-12S$ 831

Thu 22-119:20LHR - HKT

1 stop21h 15mEtihad Airways

Sun 25-103:10HKT - LHR

1 stop18h 20mEtihad Airways

Deal found 1-12S$ 890

Thu 5-317:00LGW - SIN

1 stop21h 00mChina Eastern

Sun 8-300:25SIN - LGW

1 stop21h 35mChina Eastern

Deal found 30-11S$ 902

Wed 29-407:00LGW - SIN

1 stop18h 40mTurkish Airlines

Wed 6-509:20SIN - LGW

1 stop20h 05mTurkish Airlines

Deal found 2-12S$ 909

Sun 25-117:40LCY - SIN

1 stop16h 20mSWISS

Mon 2-200:05SIN - LCY

1 stop16h 35mSWISS

Deal found 1-12S$ 929

Fri 10-422:05LHR - BKK

1 stop38h 25mShenzhen Airlines

Sat 25-412:10BKK - LHR

1 stop37h 50mShenzhen Airlines

Deal found 2-12S$ 997

Sat 28-208:40LGW - SIN

1 stop16h 05mQatar Airways

Sat 14-303:15SIN - LGW

1 stop17h 20mQatar Airways

Deal found 2-12S$ 1,005

Thu 12-318:15LCY - SIN

2 stops39h 10mLufthansa

Mon 16-323:55SIN - LCY

1 stop25h 45mLufthansa

Deal found 1-12S$ 1,030

Tue 3-321:45LHR - SIN

Nonstop13h 15mSingapore Airlines

Tue 17-309:00SIN - LHR

Nonstop14h 20mSingapore Airlines

Deal found 2-12S$ 1,049

Fri 13-320:10LHR - SIN

Nonstop13h 30mQantas Airways

Tue 24-323:05SIN - LHR

Nonstop15h 10mQantas Airways

Deal found 2-12S$ 1,078

Mon 18-506:30LHR - HKT

2 stops25h 35mKLM

Thu 28-507:35HKT - LHR

2 stops19h 20mKLM

Deal found 1-12S$ 1,088

Tue 3-315:30LHR - SIN

1 stop15h 25mBritish Airways

Wed 11-323:15SIN - LHR

Nonstop14h 40mBritish Airways

Deal found 1-12S$ 1,135

Fri 16-121:05LHR - BKK

2 stops36h 15mScandinavian Airlines

Fri 23-109:05BKK - LHR

2 stops31h 30mScandinavian Airlines

Deal found 1-12S$ 1,205

Sun 25-121:20LHR - BKK

Nonstop11h 40mEVA Air

Mon 23-312:40BKK - LHR

Nonstop13h 25mEVA Air

Deal found 1-12S$ 1,260

Wed 14-120:50LTN - SIN

2 stops35h 25mMultiple Airlines

Wed 21-116:00SIN - LTN

2 stops35h 25mMultiple Airlines

Deal found 3-12S$ 835

Sun 25-110:35LGW - SIN

1 stop17h 55mGulf Air

Sat 25-420:00SIN - LGW

1 stop17h 55mGulf Air

Deal found 1-12S$ 839

Fri 9-117:40LCY - SIN

1 stop16h 20mSWISS

Tue 27-100:05SIN - LCY

1 stop16h 40mSWISS

Deal found 1-12S$ 929

Thu 22-109:30LHR - SIN

1 stop19h 00mGulf Air

Mon 26-120:00SIN - LHR

1 stop18h 35mGulf Air

Deal found 2-12S$ 850

Mon 19-120:55LHR - HKT

1 stop19h 10mEtihad Airways

Sat 24-109:05HKT - LHR

1 stop28h 35mEtihad Airways

Deal found 1-12S$ 938

Wed 4-319:30LTN - SIN

1 stop24h 10mMultiple Airlines

Tue 17-319:25SIN - LTN

2 stops21h 05mMultiple Airlines

Deal found 2-12S$ 864

Fri 20-306:40STN - SIN

1 stop18h 05mTurkish Airlines

Tue 31-310:20SIN - STN

1 stop18h 50mTurkish Airlines

Deal found 30-11S$ 956

Sat 17-118:40LGW - SIN

1 stop15h 20mSWISS

Fri 23-100:05SIN - LGW

2 stops18h 35mSWISS

Deal found 2-12S$ 935

Thu 22-113:55LHR - HKT

1 stop26h 40mEtihad Airways

Sat 24-109:05HKT - LHR

1 stop28h 35mEtihad Airways

Deal found 1-12S$ 938

Sun 22-309:30LHR - SIN

1 stop19h 00mGulf Air

Thu 2-420:00SIN - LHR

1 stop17h 55mGulf Air

Deal found 1-12S$ 857

Fri 16-113:05LTN - SIN

2 stops20h 30mMultiple Airlines

Fri 23-123:25SIN - LTN

2 stops24h 00mMultiple Airlines

Deal found 2-12S$ 866

Thu 19-317:20STN - SIN

1 stop31h 25mTurkish Airlines

Thu 2-410:20SIN - STN

1 stop18h 50mTurkish Airlines

Deal found 1-12S$ 956

Wed 13-522:05LHR - SIN

Nonstop13h 05mSingapore Airlines

Sat 23-509:00SIN - LHR

Nonstop13h 45mSingapore Airlines

Deal found 2-12S$ 1,066

Wed 6-511:45LHR - HKT

2 stops24h 45mKLM

Sun 17-521:55HKT - LHR

2 stops29h 00mKLM

Deal found 1-12S$ 1,093

Thu 22-121:00LHR - SIN

Nonstop13h 25mBritish Airways

Mon 26-123:05SIN - LHR

Nonstop14h 40mBritish Airways

Deal found 2-12S$ 1,136

Direct flights from London to Southeast Asia
Explore direct flight options from London to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 December 2025.

Mon 2-318:40LHR - SIN

Nonstop13h 15mBritish Airways

Thu 12-323:15SIN - LHR

Nonstop14h 40mBritish Airways

Deal found 2-12S$ 828

Fri 27-220:10LHR - SIN

Nonstop13h 30mQantas Airways

Sat 14-323:05SIN - LHR

Nonstop15h 10mQantas Airways

Deal found 2-12S$ 841

Sun 1-318:40LHR - SIN

Nonstop13h 15mBritish Airways

Thu 12-323:15SIN - LHR

Nonstop14h 40mBritish Airways

Deal found 2-12S$ 851

Thu 26-218:40LHR - SIN

Nonstop13h 15mBritish Airways

Thu 12-323:15SIN - LHR

Nonstop14h 40mBritish Airways

Deal found 2-12S$ 860

Wed 25-218:40LHR - SIN

Nonstop13h 15mBritish Airways

Thu 12-323:05SIN - LHR

Nonstop14h 40mBritish Airways

Deal found 2-12S$ 873

Wed 28-109:20LGW - SIN

Nonstop12h 55mSingapore Airlines

Wed 4-223:55SIN - LGW

Nonstop14h 30mSingapore Airlines

Deal found 1-12S$ 883

Mon 2-209:25LGW - SIN

Nonstop12h 50mSingapore Airlines

Tue 10-223:55SIN - LGW

Nonstop14h 30mSingapore Airlines

Deal found 2-12S$ 914

Sun 8-310:40LHR - SIN

Nonstop13h 10mSingapore Airlines

Sun 15-309:00SIN - LHR

Nonstop14h 20mSingapore Airlines

Deal found 2-12S$ 916

Wed 14-121:45LHR - SIN

Nonstop13h 15mSingapore Airlines

Thu 29-109:00SIN - LHR

Nonstop14h 20mSingapore Airlines

Deal found 1-12S$ 921

Wed 14-121:45LHR - SIN

Nonstop13h 15mSingapore Airlines

Wed 4-209:00SIN - LHR

Nonstop14h 20mSingapore Airlines

Deal found 2-12S$ 922

Mon 4-510:15LGW - SIN

Nonstop13h 05mSingapore Airlines

Sun 17-523:55SIN - LGW

Nonstop13h 30mSingapore Airlines

Deal found 1-12S$ 925

Thu 22-109:20LGW - SIN

Nonstop12h 55mSingapore Airlines

Wed 4-223:55SIN - LGW

Nonstop14h 30mSingapore Airlines

Deal found 1-12S$ 927

Last-minute flights from London to Southeast Asia
Discover last-minute flight deals from London to Southeast Asia. Data last updated 3 December 2025 and is based on user searches.

Sun 7-1221:15LHR - SIN

1 stop21h 55mHainan Airlines

Sun 14-1212:15SIN - LHR

2 stops37h 40mHainan Airlines

Deal found 2-12S$ 820

Wed 31-1221:10LHR - SIN

1 stop31h 00mShenzhen Airlines

Tue 13-103:00SIN - LHR

1 stop24h 10mShenzhen Airlines

Deal found 1-12S$ 831

Wed 7-121:30LHR - SIN

2 stops31h 55mChina Southern

Wed 28-103:55SIN - LHR

1 stop22h 40mChina Southern

Deal found 1-12S$ 821

Sun 11-118:40LHR - SIN

1 stop15h 20mMultiple Airlines

Sun 3-523:40SIN - LHR

1 stop16h 00mMultiple Airlines

Deal found 2-12S$ 844

Wed 14-121:30LHR - SIN

2 stops31h 55mChina Southern

Wed 21-108:00SIN - LHR

1 stop18h 35mChina Southern

Deal found 2-12S$ 824

Thu 22-109:30LHR - SIN

1 stop19h 00mGulf Air

Thu 23-420:00SIN - LHR

1 stop17h 55mGulf Air

Deal found 1-12S$ 825

Thu 22-121:35LHR - SIN

1 stop33h 20mAir China

Mon 20-416:00SIN - LHR

1 stop35h 15mAir China

Deal found 1-12S$ 830

Sun 25-121:50LHR - SIN

1 stop30h 40mGulf Air

Mon 2-220:00SIN - LHR

1 stop18h 35mGulf Air

Deal found 1-12S$ 822

Mon 26-117:40LHR - SIN

1 stop20h 15mAir China

Fri 30-117:55SIN - LHR

1 stop31h 55mAir China

Deal found 30-11S$ 837

Tue 27-120:25LHR - SIN

1 stop26h 25mAir China

Tue 3-217:55SIN - LHR

1 stop30h 00mAir China

Deal found 1-12S$ 829

Tue 27-122:15LHR - SIN

2 stops35h 05mMultiple Airlines

Tue 3-204:40SIN - LHR

1 stop19h 40mMultiple Airlines

Deal found 1-12S$ 842

Fri 30-109:30LHR - SIN

1 stop19h 00mGulf Air

Wed 4-220:00SIN - LHR

1 stop26h 45mGulf Air

Deal found 1-12S$ 838

One-way flights from London to Southeast Asia
Search for one-way flight options from London to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 3 December 2025.

Sun 1-207:05LTN - SIN

3 stops28h 15mMultiple Airlines

Deal found 30-11S$ 514

Mon 26-119:55STN - SIN

1 stop23h 45mMultiple Airlines

Deal found 1-12S$ 515

Sat 17-114:00LTN - SIN

2 stops43h 20mMultiple Airlines

Deal found 30-11S$ 515

Thu 22-121:50LHR - SIN

1 stop30h 40mGulf Air

Deal found 1-12S$ 515

Thu 12-208:00LTN - SIN

3 stops31h 55mMultiple Airlines

Deal found 30-11S$ 516

Fri 13-214:00LTN - SIN

2 stops43h 20mMultiple Airlines

Deal found 30-11S$ 519

Sun 11-122:15LHR - SIN

1 stop21h 05mMultiple Airlines

Deal found 1-12S$ 519

Tue 20-122:15LHR - SIN

3 stops35h 05mMultiple Airlines

Deal found 1-12S$ 521

Fri 9-123:20STN - SIN

3 stops59h 10mMultiple Airlines

Deal found 1-12S$ 523

Wed 14-122:15LHR - SIN

2 stops27h 45mMultiple Airlines

Deal found 1-12S$ 523

Mon 12-117:00LGW - SIN

2 stops34h 40mChina Eastern

Deal found 1-12S$ 523

Tue 20-106:25LTN - SIN

2 stops26h 55mMultiple Airlines

Deal found 1-12S$ 524

Find flight deals from London to Southeast Asia

Round-trip from	S$ 806
One-way from	S$ 514
Popular in	December
Cheapest in	May
Average price	S$ 1,516

Hainan Airlines
26-1-29-1
4 total stops
67h 30m total
London to Southeast Asia

Search Deals

1-2
3 total stops
28h 15m total
London to Southeast Asia

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (S$ 132 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (S$ 48 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

LondonSingapore

LTN - SIN

LTNSIN

London Luton

Sun 1-3

14:30-03:20

1 stop28h 50m

Singapore Changi

Tue 17-3

10:25-23:10

1 stop20h 45m

S$ 822

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

Wed 11-3

10:35-12:30

1 stop17h 55m

Singapore Changi

Sat 21-3

20:00-06:20

1 stop18h 20m

S$ 831

LondonSingapore

LTN - SIN

LTNSIN

London Luton

Wed 14-1

20:50-16:15

2 stops35h 25m

Singapore Changi

Wed 21-1

16:00-19:25

2 stops35h 25m

S$ 835

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

Sun 25-1

10:35-12:30

1 stop17h 55m

Singapore Changi

Sat 25-4

20:00-06:55

1 stop17h 55m

S$ 839

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 22-1

09:30-12:30

1 stop19h 00m

Singapore Changi

Mon 26-1

20:00-06:35

1 stop18h 35m

S$ 850

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 22-3

09:30-12:30

1 stop19h 00m

Singapore Changi

Thu 2-4

20:00-06:55

1 stop17h 55m

S$ 857

LondonSingapore

LTN - SIN

LTNSIN

London Luton

Wed 4-3

19:30-03:40

1 stop24h 10m

Singapore Changi

Tue 17-3

19:25-08:30

2 stops21h 05m

S$ 864

LondonSingapore

LTN - SIN

LTNSIN

London Luton

Fri 16-1

13:05-17:35

2 stops20h 30m

Singapore Changi

Fri 23-1

23:25-15:25

2 stops24h 00m

S$ 866

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Thu 22-1

19:20-23:35

1 stop21h 15m

Phuket City

Sun 25-1

03:10-14:30

1 stop18h 20m

S$ 890

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

Thu 5-3

17:00-22:00

1 stop21h 00m

Singapore Changi

Sun 8-3

00:25-14:00

1 stop21h 35m

S$ 902

Flights are sorted by cheapest return flights first.

Deals found on 1-12

Showing 1-10 of 60 results

...

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

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

Currently, May is the cheapest month in which you can book a flight from London to Southeast Asia (average of S$ 585). Flying from London to Southeast Asia in July is currently the most expensive (average of S$ 895). 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?

One of the essential ways to save on airfare from London to Southeast Asia is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 5% on airfare.

Weekly flight availability from London to Southeast Asia

The most flights from LON to zzYJX are scheduled on a Tuesday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing Southeast Asia

Read reviews from past customers who have flown with Singapore Airlines, Air China, andGulf Air from London to Southeast Asia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.1

Very Good

1,411 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Singapore Airlines

8.1

Very Good

1,411 reviews

Singapore Airlines

8.1

Very Good

1,411 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Air China

7.2

Good

127 reviews

Singapore Airlines

8.1

Very Good

1,411 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Gulf Air

7.2

Good

223 reviews

Singapore Airlines

8.1

Very Good

1,411 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Lufthansa

6.8

Okay

7,607 reviews

Singapore Airlines

8.1

Very Good

1,411 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

British Airways

6.7

Okay

7,555 reviews

Singapore Airlines

8.1

Very Good

1,411 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Related info for your journey

How long is the flight from London to Southeast Asia?
For as low as S$ 831, Gulf Air can have you in Southeast Asia from London in 17h 55m. The distance between London and Southeast Asia is about 10863 km. This flight may include one or multiple stops.
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$ 488), Air China (S$ 496), and Thai Airways (S$ 530).
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 Stansted - Singapore Changi.
What are the most reliable airlines from London to Southeast Asia?
Consider EVA Air (90%), Thai Airways (87%) or Air Canada (83%) 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$ 1,592, our data shows the cheapest flight currently is S$ 1,404. When looking at the most popular route, (London Heathrow - Singapore Changi), you can expect to pay S$ 673 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, May is the cheapest month in which you can book a flight from London to Southeast Asia (average of S$ 585). Flying from London to Southeast Asia in July is currently the most expensive (average of S$ 895). 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

Alternative routes for London to Southeast Asia

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Newcastle upon Tyne to Singapore flights

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Direct flights to

Top 7 airlines flying from London to Southeast Asia

Airline	Cheapest	Average	Flexibility	On-time
Etihad Airways	CheapestS$ 705	AverageS$ 1,079	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Gulf Air	CheapestS$ 813	AverageS$ 974	FlexibilityNo cancel fee	On-time67%	Search Gulf Air flights
SWISS	CheapestS$ 815	AverageS$ 1,921	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
British Airways	CheapestS$ 828	AverageS$ 1,224	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Singapore Airlines	CheapestS$ 934	AverageS$ 1,382	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Lufthansa	CheapestS$ 970	AverageS$ 1,719	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Qantas Airways	CheapestS$ 1,025	AverageS$ 1,854	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

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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.

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Cheap flights from London to Southeast Asia from S$ 514

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 1-2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Southeast Asia

Cheapest flights from London to Southeast AsiaExplore 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 3 December 2025.

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 3 December 2025.

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 3 December 2025.

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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.

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

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

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 3 December 2025.

Weekly flight availability from London to Southeast Asia

Reviews of airlines servicing Southeast Asia

Read reviews from past customers who have flown with Singapore Airlines, Air China, andGulf Air from London to Southeast Asia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

What are the cheapest flights from London to Southeast Asia?

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

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

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

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

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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.

Top 7 airlines flying from London to Southeast Asia

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

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

Can Cheapflights 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?

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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 3 December 2025.