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Cheap flights from London to Southeast Asia from £304

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 14/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BKK
26 Feb — 5 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 21 February 2025.

Round-trip from

£444

One-way from

£304

Popular in

December

Cheapest in

May

Average price

£658
China Eastern
  • China Eastern
  • 23/4-12/5
  • 2 total stops
  • 42h 45m total
  • London to Southeast Asia
Search Deals
14/3
  • 14/3
  • 1 total stop
  • 27h 10m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 21 February 2025.

Wed 23/421:20LHR - MNL
1 stop21h 00mChina Eastern
Mon 12/503:55MNL - LHR
1 stop21h 45mChina Eastern
Deal found 20/2£444
Thu 8/522:10LHR - MNL
1 stop35h 35mChina Southern
Thu 5/611:55MNL - LHR
1 stop38h 05mChina Southern
Deal found 19/2£445
Tue 11/317:40LHR - MNL
2 stops23h 45mAir China
Sat 29/302:55MNL - LHR
2 stops24h 35mAir China
Deal found 20/2£446
Sun 9/311:40LGW - MNL
2 stops29h 45mAir China
Wed 26/302:55MNL - LGW
2 stops36h 00mAir China
Deal found 20/2£448
Fri 7/310:30LGW - MNL
2 stops25h 10mMultiple Airlines
Fri 14/320:35MNL - LGW
2 stops41h 55mMultiple Airlines
Deal found 20/2£448
Wed 26/210:30LGW - MNL
1 stop33h 10mChina Eastern
Tue 25/304:55MNL - LGW
1 stop33h 35mChina Eastern
Deal found 20/2£462
Fri 14/321:10LHR - MNL
1 stop20h 30mMultiple Airlines
Sat 29/302:55MNL - LHR
1 stop24h 05mMultiple Airlines
Deal found 20/2£466
Fri 28/221:10LHR - MNL
1 stop20h 30mShenzhen Airlines
Sat 29/302:55MNL - LHR
1 stop24h 05mShenzhen Airlines
Deal found 19/2£469
Tue 4/310:30LGW - BKK
1 stop32h 25mChina Eastern
Wed 12/321:05BKK - LGW
2 stops40h 25mChina Eastern
Deal found 20/2£480
Sat 10/522:00LHR - BKK
1 stop37h 05mAir China
Sat 24/501:30BKK - LHR
1 stop25h 00mAir China
Deal found 20/2£480
Tue 25/221:00LHR - BKK
1 stop20h 55mChina Eastern
Sun 23/301:55BKK - LHR
1 stop19h 00mChina Eastern
Deal found 20/2£481
Thu 13/310:30LGW - BKK
2 stops25h 00mMultiple Airlines
Sat 29/310:40BKK - LGW
2 stops26h 00mMultiple Airlines
Deal found 20/2£482

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 858,174 searches. Data last updated 21 February 2025.

Fly from

London

Fly to

Southeast Asia

Route

Depart

Return

Price

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Wed 23/4

21:20-01:20

1 stop21h 00m

Manila Ninoy Aquino Intl

Mon 12/5

03:55-18:40

1 stop21h 45m

£444

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Thu 8/5

22:10-16:45

1 stop35h 35m

Manila Ninoy Aquino Intl

Thu 5/6

11:55-19:00

1 stop38h 05m

£445

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Tue 11/3

17:40-01:25

2 stops23h 45m

Manila Ninoy Aquino Intl

Sat 29/3

02:55-19:30

2 stops24h 35m

£446

LondonManila

LGW - MNL

LGWMNL

London Gatwick

Sun 9/3

11:40-01:25

2 stops29h 45m

Manila Ninoy Aquino Intl

Wed 26/3

02:55-06:55

2 stops36h 00m

£448

LondonManila

LGW - MNL

LGWMNL

London Gatwick

Fri 7/3

10:30-19:40

2 stops25h 10m

Manila Ninoy Aquino Intl

Fri 14/3

20:35-06:30

2 stops41h 55m

£448

LondonManila

LGW - MNL

LGWMNL

London Gatwick

Sun 16/3

10:30-03:40

1 stop33h 10m

Manila Ninoy Aquino Intl

Fri 21/3

04:55-06:30

1 stop33h 35m

£462

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Fri 14/3

21:10-01:40

1 stop20h 30m

Manila Ninoy Aquino Intl

Thu 10/4

02:55-20:00

1 stop24h 05m

£466

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Fri 7/3

21:10-01:40

1 stop20h 30m

Manila Ninoy Aquino Intl

Thu 13/3

02:55-19:10

1 stop24h 15m

£475

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 24/2

22:00-19:20

1 stop38h 20m

Bangkok Suvarnabhumi

Fri 7/3

02:10-18:15

1 stop23h 05m

£484

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 29/4

09:30-09:45

1 stop17h 15m

Singapore Changi

Tue 13/5

21:10-07:00

1 stop16h 50m

£494

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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, May is the cheapest month in which you can book a flight from London to Southeast Asia (average of £784). Flying from London to Southeast Asia in December is currently the most expensive (average of £1,123). 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 21 February 2025.

When flying from London to Southeast Asia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 21 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 21 February 2025.
See what other customers who have flown with EVA Air, China Airlines and Garuda Indonesia from London to Southeast Asia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

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
1,200 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

China Airlines
8.2
Very Good
727 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

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
1,200 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

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
1,299 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

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 (£308), Air China (£310), and China Eastern (£311).

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

    The most popular route from London to Southeast Asia is London Heathrow - Bangkok Suvarnabhumi. You may also consider London Gatwick - Bangkok Suvarnabhumi or London City - Bangkok Suvarnabhumi.

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

    No one likes to see their flight delayed. When booking a flight from London to Southeast Asia consider choosing Air Canada (59%), Thai Airways (51%) or EVA Air (43%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from London to Southeast Asia is £360. On average you can expect to pay £2,237. The most popular route, (London Heathrow - Bangkok Suvarnabhumi), can usually be booked for £417.

  • 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 £784). Flying from London to Southeast Asia in December is currently the most expensive (average of £1,123). 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.
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Stansted to Kuala Lumpur Intl flights
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Heathrow to Gimpo Intl flights
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Manchester to Islamabad flights
Heathrow to Chennai flights
Stansted to Denpasar flights
London City to New Delhi flights
Gatwick to Hong Kong flights
Birmingham to Suvarnabhumi flights
London City to Hong Kong flights
Heathrow to Taiwan Taoyuan Intl flights
Stansted to Islamabad flights
Heathrow to Hyderabad flights
Gatwick to Colombo flights
Stansted to Colombo flights

Top 10 airlines flying from London to Southeast Asia

Discover the top 10 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 858,174 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkmenistan AirlinesCheapest£309Average£576FlexibilityNo cancel feeOn-time63%
Search Turkmenistan Airlines flights
Qantas AirwaysCheapest£396Average£755FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air FranceCheapest£417Average£753FlexibilityNo cancel feeOn-time77%
Search Air France flights
Hainan AirlinesCheapest£426Average£478FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
KLMCheapest£443Average£876FlexibilityNo cancel feeOn-time75%
Search KLM flights
Royal Brunei AirlinesCheapest£478Average£629FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Royal JordanianCheapest£489Average£644FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
SWISSCheapest£515Average£747FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Austrian AirlinesCheapest£525Average£903FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
LufthansaCheapest£540Average£770FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to Southeast Asia for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from London to Southeast Asia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from London to Southeast Asia and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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