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£259+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
10 Sep — 17 Sep1
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 5 September 2025.

Return from

£459

One-way from

£259

Popular in

December

Cheapest in

May

Average price

£547
Air China
  • Air China
  • 26/10-10/11
  • 2 total stops
  • 66h 15m total
  • London to Bangkok
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Shenzhen Airlines
  • Shenzhen Airlines
  • 10/9
  • 1 total stop
  • 22h 15m total
  • London to Southeast Asia
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Highest demand for flights based on searches. 8% potential increase in price (£43 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
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Average for return flights in September 2025
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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 5 September 2025
Explore Southeast Asia
Flights to Bangkok
Flights to Manila
Flights to Denpasar
Flights to Kuala Lumpur
Flights to Phuket City
Flights to Singapore

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 5 September 2025.

Thu 11/922:00LHR - MNL
1 stop20h 30mAir China
Fri 7/1102:55MNL - LHR
1 stop24h 45mAir China
Deal found 5/9£450
Thu 18/922:10LHR - MNL
1 stop18h 05mChina Southern
Mon 6/1011:55MNL - LHR
1 stop38h 05mChina Southern
Deal found 4/9£451
Sun 5/1019:15LHR - MNL
2 stops32h 20mChina Southern
Sun 12/1011:55MNL - LHR
1 stop38h 05mChina Southern
Deal found 4/9£453
Thu 18/922:10LHR - MNL
1 stop29h 25mChina Southern
Fri 10/1008:20MNL - LHR
1 stop17h 40mChina Southern
Deal found 4/9£455
Thu 18/922:10LHR - MNL
1 stop18h 05mChina Southern
Fri 3/1017:45MNL - LHR
1 stop32h 15mChina Southern
Deal found 4/9£456
Tue 30/922:00LHR - MNL
1 stop20h 30mAir China
Wed 22/1006:25MNL - LHR
1 stop21h 05mAir China
Deal found 4/9£456
Fri 26/922:10LHR - MNL
1 stop18h 05mChina Southern
Sat 18/1017:45MNL - LHR
1 stop32h 15mChina Southern
Deal found 3/9£459
Sun 26/1011:40LGW - BKK
1 stop30h 50mAir China
Mon 10/1102:30BKK - LGW
1 stop35h 25mAir China
Deal found 3/9£459
Fri 7/1120:30LHR - BKK
1 stop16h 05mAir India
Wed 26/1120:50BKK - LHR
1 stop21h 15mAir India
Deal found 3/9£459
Mon 13/1007:30STN - BKK
2 stops27h 55mMultiple Airlines
Sun 26/1012:15BKK - STN
1 stop38h 50mMultiple Airlines
Deal found 4/9£459
Fri 3/1022:05LHR - MNL
1 stop20h 35mShenzhen Airlines
Sat 25/1002:55MNL - LHR
1 stop24h 15mShenzhen Airlines
Deal found 4/9£459
Thu 13/1110:30LGW - BKK
1 stop22h 25mChina Eastern
Mon 24/1102:35BKK - LGW
2 stops34h 55mChina Eastern
Deal found 5/9£459

Cheapflights Fare Finder

 
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 5 September 2025.
Use the filters below to find and compare flights to Southeast Asia that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonBangkok

STN - BKK

STNBKK

London Stansted

Sun 9/11

05:55-10:30

2 stops21h 35m

Bangkok Suvarnabhumi

Sat 6/12

14:40-11:45

1 stop28h 05m

£462

LondonBangkok

LTN - BKK

LTNBKK

London Luton

Tue 4/11

14:00-23:20

2 stops26h 20m

Bangkok Suvarnabhumi

Sun 30/11

08:55-23:10

2 stops45h 15m

£463

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sun 26/10

21:10-01:40

1 stop20h 30m

Manila Ninoy Aquino Intl

Sat 15/11

02:55-19:10

1 stop24h 15m

£465

LondonBangkok

STN - BKK

STNBKK

London Stansted

Tue 7/10

15:10-17:25

2 stops20h 15m

Bangkok Suvarnabhumi

Sun 26/10

12:15-11:45

1 stop30h 30m

£465

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 21/9

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Fri 3/10

03:15-19:50

1 stop22h 35m

£468

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

Thu 4/12

11:40-16:15

1 stop20h 35m

Singapore Changi

Wed 31/12

17:50-06:55

1 stop21h 05m

£470

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 2/2

17:50-14:50

1 stop14h 00m

Bangkok Suvarnabhumi

Tue 24/2

23:30-13:00

1 stop20h 30m

£473

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

Wed 4/2

10:35-12:30

1 stop17h 55m

Singapore Changi

Tue 17/2

20:25-06:30

1 stop18h 05m

£474

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 2/2

14:50-12:20

1 stop14h 30m

Bangkok Suvarnabhumi

Thu 12/2

23:50-14:05

1 stop21h 15m

£475

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

Sun 9/11

10:35-12:30

1 stop17h 55m

Singapore Changi

Tue 25/11

20:25-06:30

1 stop18h 05m

£479

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Showing 1-10 of 60 results
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6

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.

Cheapflights Insights

Everything you need to know about your flight to Southeast Asia

How long is the flight to Southeast Asia?

On average, a flight from London to Southeast Asia takes 23 hours 11 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 Saturday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Wednesday 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 (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

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

The most popular airlines flying from London to Southeast Asia are Thai Airways, Singapore Airlines and Qatar Airways.

Emirates
Emirates
From £437
Qatar Airways
Qatar Airways
From £585
Thai Airways
Thai Airways
From £661
Etihad Airways
Etihad Airways
From £566

What are the cheapest airlines that fly to Southeast Asia?

The cheapest airlines flying from London to Southeast Asia are Bangkok Airways, Oman Air 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 5 September 2025.
Read through reviews of airlines serving Southeast Asia, such as Singapore Airlines, Cathay Pacific, andChina Southern. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,358 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very Good
1,358 reviews
Singapore Airlines
8.1
Very Good
1,358 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Cathay Pacific
7.6
Good
986 reviews
Singapore Airlines
8.1
Very Good
1,358 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
China Southern
7.5
Good
110 reviews
Singapore Airlines
8.1
Very Good
1,358 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Qatar Airways
7.4
Good
3,622 reviews
Singapore Airlines
8.1
Very Good
1,358 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Air China
7.2
Good
97 reviews
Singapore Airlines
8.1
Very Good
1,358 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.7

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

FAQs about flying to Southeast Asia

  • 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, Norse Atlantic UK 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 £137, however they can be found for as little as £57.

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

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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