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£306+ Cheap flights to Southeast Asia

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
25 Feb — 4 Mar1
1 adult

Flights to Southeast Asia in 2025

Find the latest flights to Southeast Asia in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 20 February 2025.

Return from

£482

One-way from

£306

Popular in

December

Cheapest in

May

Average price

£660
China Eastern
  • China Eastern
  • 7/3-1/4
  • 2 total stops
  • 41h 55m total
  • London to Bangkok
20/4
  • 20/4
  • 2 total stops
  • 22h 55m total
  • London to Southeast Asia
Highest demand for flights based on searches. 6% potential increase in price (£40 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Average for return flights in February 2025

Find flights to Southeast Asia

Browse one-way and return flights deals to Southeast Asia on Cheapflights. Flight deals are based on user searches and were last updated on 20 February 2025
Explore Southeast Asia

Find flight deals to Southeast Asia

Cheapest flights to Southeast Asia
Explore the most affordable flight options available to Southeast Asia. Find the lowest fares based on data from user searches, with prices last updated on 20 February 2025.

Sun 2/317:15LHR - MNL
2 stops33h 35mChina Southern
Wed 19/312:00MNL - LHR
1 stop38h 15mChina Southern
Deal found 19/2£445
Sat 8/317:40LHR - MNL
1 stop22h 25mAir China
Sat 29/306:20MNL - LHR
1 stop19h 30mAir China
Deal found 19/2£449
Sun 23/321:10LHR - MNL
1 stop20h 30mShenzhen Airlines
Sat 5/402:55MNL - LHR
1 stop24h 05mShenzhen Airlines
Deal found 19/2£452
Wed 19/310:30LGW - MNL
2 stops25h 10mMultiple Airlines
Mon 31/315:00MNL - LGW
2 stops22h 40mMultiple Airlines
Deal found 19/2£455
Thu 20/310:30LGW - MNL
1 stop33h 10mChina Eastern
Wed 9/403:55MNL - LGW
1 stop18h 05mChina Eastern
Deal found 19/2£457
Fri 14/311:40LGW - MNL
2 stops30h 00mAir China
Sat 29/302:55MNL - LGW
2 stops34h 40mAir China
Deal found 19/2£466
Fri 7/321:10LHR - MNL
1 stop20h 30mMultiple Airlines
Fri 21/302:55MNL - LHR
1 stop24h 15mMultiple Airlines
Deal found 19/2£468
Tue 4/314:00LGW - MNL
1 stop23h 00mSAUDIA
Wed 2/723:30MNL - LGW
1 stop20h 30mSAUDIA
Deal found 18/2£473
Fri 7/310:30LGW - BKK
1 stop18h 50mChina Eastern
Tue 1/413:35BKK - LGW
1 stop23h 05mChina Eastern
Deal found 18/2£482
Thu 20/221:00LHR - BKK
1 stop20h 55mChina Eastern
Thu 27/218:15BKK - LHR
2 stops30h 15mChina Eastern
Deal found 18/2£482
Tue 20/520:25LHR - BKK
1 stop21h 45mAir China
Tue 3/619:35BKK - LHR
1 stop30h 55mAir China
Deal found 19/2£483
Sat 22/211:40LGW - BKK
1 stop30h 00mAir China
Fri 7/301:40BKK - LGW
1 stop36h 15mAir China
Deal found 19/2£484

Find flights to Southeast Asia within your budget

Locate flights to Southeast Asia that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 20 February 2025.

Fly from

London

Route

Depart

Return

Price

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sun 2/3

17:15-10:50

2 stops33h 35m

Manila Ninoy Aquino Intl

Wed 19/3

12:00-18:15

1 stop38h 15m

£445

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sat 8/3

17:40-00:05

1 stop22h 25m

Manila Ninoy Aquino Intl

Sat 29/3

06:20-17:50

1 stop19h 30m

£449

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sun 23/3

21:10-01:40

1 stop20h 30m

Manila Ninoy Aquino Intl

Sat 5/4

02:55-20:00

1 stop24h 05m

£452

LondonManila

LGW - MNL

LGWMNL

London Gatwick

Wed 19/3

10:30-19:40

2 stops25h 10m

Manila Ninoy Aquino Intl

Mon 31/3

15:00-06:40

2 stops22h 40m

£455

LondonManila

LGW - MNL

LGWMNL

London Gatwick

Thu 20/3

10:30-03:40

1 stop33h 10m

Manila Ninoy Aquino Intl

Wed 9/4

03:55-15:00

1 stop18h 05m

£457

LondonManila

LGW - MNL

LGWMNL

London Gatwick

Thu 20/3

11:40-01:40

2 stops30h 00m

Manila Ninoy Aquino Intl

Wed 9/4

02:55-06:35

2 stops34h 40m

£458

LondonManila

LGW - MNL

LGWMNL

London Gatwick

Tue 4/3

14:00-21:00

1 stop23h 00m

Manila Ninoy Aquino Intl

Wed 2/7

23:30-13:00

1 stop20h 30m

£473

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Fri 7/3

10:30-19:00

2 stops25h 30m

Bangkok Suvarnabhumi

Sat 22/3

10:40-06:30

2 stops26h 50m

£482

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 14/3

21:30-11:25

2 stops30h 55m

Bangkok Suvarnabhumi

Wed 19/3

02:10-18:15

1 stop23h 05m

£483

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 29/4

09:30-09:45

1 stop17h 15m

Singapore Changi

Tue 20/5

21:10-06:45

1 stop16h 35m

£488

Flights are sorted by cheapest return flights first.

Deals found on 18/2

Showing 1-10 of 60 results
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Best time to book a flight to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia 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 to Southeast Asia

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

How long is the flight to Southeast Asia?

On average, a flight from London to Southeast Asia takes 23 hours 46 minutes. Flights to Southeast Asia from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Southeast Asia?

Use this chart to determine the cheapest time to fly return from London to Southeast Asia. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Southeast Asia should consider flying on Friday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday at midday, when prices are usually at their highest.

Weekly flight availability to Southeast Asia

The most flights from London to Southeast Asia 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).

What are the cheapest airlines that fly to Southeast Asia?

The cheapest airlines flying from London to Southeast Asia are Bangkok Airways, Turkmenistan Airlines and Air China.

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 20 February 2025.
Peruse reviews from past customers who have flown China Airlines, Garuda Indonesia and Singapore Airlines to Southeast Asia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.8

Overall

8.2

Boarding

8.3

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Food

7.8

Overall

8.2

Boarding

8.3

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Food

7.8

Overall

8.2

Boarding

8.3

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Food

7.8

Overall

8.2

Boarding

8.3

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Food

7.8

Overall

8.2

Boarding

8.3

Entertainment

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

  • Can I find cheaper flights to Southeast Asia if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Southeast Asia on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Southeast Asia?

    Based on reviews from Cheapflights users, Turkmenistan Airlines is rated the highest out of the airlines that fly to Southeast Asia.

  • How much is a return flight to Southeast Asia?

    A return flight to Southeast Asia will typically cost around £120, however they can be found for as little as £31.

  • Where does the fastest flight to Southeast Asia depart from?

    For those looking to save time traveling to Southeast Asia, London offers the quickest one-way flight (11 hours 20 minutes).

  • Does Bangkok Suvarnabhumi have car hire?

    Yes. Those touching down at Bangkok Suvarnabhumi can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Bangkok Suvarnabhumi?

    Yes. Bangkok Suvarnabhumi has hotels nearby for those requiring accommodations. Louis Tavern Dayrooms At Suvarnabhumi Airport is the closest property to Bangkok Suvarnabhumi (0.0 mi away from Bangkok Suvarnabhumi).

See more FAQs

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How does Cheapflights help users find flights to Southeast Asia?

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Millions of users choose and trust Cheapflights to book the best flight deals 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 to Southeast Asia with no change fees?

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

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

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

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