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£282+ 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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
20 Jun — 27 Jun1
1 adult
1 adult, Economy, 0 bags

Flights to Southeast Asia in 2026

Enter your travel dates to find the best prices.

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 21 May 2026.

Sat 21/1111:05
LGW
-
BKK
1 stop31h 25m
Air China
Thu 3/1219:30
BKK
-
LGW
1 stop17h 05m
Air China
Deal found 17/5£445
Sun 15/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Sat 28/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 17/5£445
Wed 27/515:35
LGW
-
BKK
1 stop15h 00m
Condor
Wed 10/622:35
BKK
-
LGW
1 stop16h 20m
Condor
Deal found 17/5£446
Sun 8/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Tue 24/1112:10
BKK
-
LHR
1 stop38h 00m
Shenzhen Airlines
Deal found 18/5£446
Sun 8/1111:05
LGW
-
BKK
1 stop31h 25m
Air China
Mon 23/1102:30
BKK
-
LGW
1 stop35h 25m
Air China
Deal found 18/5£447
Mon 2/1121:10
LHR
-
BKK
1 stop38h 20m
Shenzhen Airlines
Sun 15/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 17/5£447
Sun 29/1111:05
LGW
-
BKK
1 stop31h 25m
Air China
Sat 12/1219:30
BKK
-
LGW
1 stop17h 05m
Air China
Deal found 17/5£448
Sat 28/1121:10
LHR
-
BKK
1 stop31h 00m
Shenzhen Airlines
Sat 19/1212:10
BKK
-
LHR
1 stop38h 00m
Shenzhen Airlines
Deal found 18/5£448
Sat 23/516:55
LGW
-
BKK
1 stop14h 10m
Turkmenistan Airlines
Sat 30/504:40
BKK
-
LGW
1 stop16h 45m
Turkmenistan Airlines
Deal found 18/5£448
Sat 20/615:40
LGW
-
BKK
1 stop14h 55m
Condor
Sat 4/722:35
BKK
-
LGW
1 stop16h 25m
Condor
Deal found 18/5£449
Mon 9/1121:10
LHR
-
BKK
1 stop38h 20m
Shenzhen Airlines
Tue 24/1112:10
BKK
-
LHR
1 stop38h 00m
Shenzhen Airlines
Deal found 18/5£449
Fri 25/915:45
LGW
-
BKK
1 stop14h 50m
Condor
Sun 4/1022:35
BKK
-
LGW
1 stop16h 25m
Condor
Deal found 18/5£450

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 21 May 2026
Explore Southeast Asia
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Flights to Boracay

Find flight deals to Southeast Asia

Find the latest flights to Southeast Asia in 2026, 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 21 May 2026.

Return from

£445

One-way from

£281

Popular in

December

Cheapest in

September

Average price

£544
Condor
  • Condor
  • 4/6-5/7
  • 2 total stops
  • 37h 00m total
  • London to Bangkok
Search Deals
Air China
  • Air China
  • 9/9
  • 1 total stop
  • 21h 45m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£36 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for return flights in May 2026
Search Deals

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 21 May 2026.
Use the filters below to find and compare flights to Southeast Asia that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Sat 7/11

21:10-03:20

1 stop22h 10m

Kuala Lumpur Intl

Sun 15/11

04:20-19:10

1 stop22h 50m

£474

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Wed 11/11

21:00-14:45

2 stops33h 45m

Kuala Lumpur Intl

Wed 18/11

15:45-17:30

3 stops33h 45m

£546

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 6/6

20:45-23:50

1 stop21h 05m

Bangkok Suvarnabhumi

Tue 28/7

03:15-15:05

1 stop17h 50m

£556

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 3/7

14:45-23:50

1 stop27h 05m

Bangkok Suvarnabhumi

Thu 16/7

03:15-12:45

1 stop15h 30m

£558

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 17/11

10:30-12:20

1 stop18h 50m

Bangkok Suvarnabhumi

Sun 6/12

15:55-14:00

2 stops29h 05m

£568

LondonBangkok

LCY - BKK

LCYBKK

London City

Wed 2/9

10:00-09:30

1 stop17h 30m

Bangkok Suvarnabhumi

Wed 7/10

12:05-07:55

1 stop25h 50m

£596

LondonKuala Lumpur

LGW - KUL

LGWKUL

London Gatwick

Fri 28/8

19:35-09:10

1 stop30h 35m

Kuala Lumpur Intl

Wed 9/9

03:15-18:35

1 stop22h 20m

£616

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Tue 15/9

22:05-11:30

1 stop30h 25m

Manila Ninoy Aquino Intl

Wed 30/9

12:45-06:55

1 stop25h 10m

£631

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 16/6

19:30-21:55

2 stops19h 25m

Singapore Changi

Tue 23/6

20:50-08:20

2 stops18h 30m

£649

LondonKuala Lumpur

LGW - KUL

LGWKUL

London Gatwick

Thu 11/6

09:05-08:35

1 stop16h 30m

Kuala Lumpur Intl

Sun 21/6

20:20-06:40

1 stop17h 20m

£652

Flights are sorted by cheapest return flights first.

Deals found on 19/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
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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 50 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.

Weekly flight availability to Southeast Asia

The most flights from London to Southeast Asia are scheduled on a Tuesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

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

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

Etihad Airways
Etihad Airways
From £317
Qatar Airways
Qatar Airways
From £377
Emirates
Emirates
From £318
Singapore Airlines
Singapore Airlines
From £387

What are the cheapest airlines that fly to Southeast Asia?

The cheapest airlines flying from London to Southeast Asia are Bangkok Airways, AirAsia X and Hainan Airlines.

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).

When is the best time to book a flight to Southeast Asia?

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights to Southeast Asia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 May 2026.

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 Friday at midday, when prices are usually at their highest.

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 May 2026.
Read through reviews of airlines serving Southeast Asia, such as Singapore Airlines,Cathay Pacific, andQatar Airways. 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
8.2
Very Good
1,522 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Singapore Airlines
8.2
Very Good
1,522 reviews
Singapore Airlines
8.2
Very Good
1,522 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Cathay Pacific
7.6
Good
1,342 reviews
Singapore Airlines
8.2
Very Good
1,522 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Qatar Airways
7.4
Good
3,730 reviews
Singapore Airlines
8.2
Very Good
1,522 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Etihad Airways
7.3
Good
1,442 reviews
Singapore Airlines
8.2
Very Good
1,522 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Air China
7.3
Good
151 reviews
Singapore Airlines
8.2
Very Good
1,522 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

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, Juneyao 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 £73, however they can be found for as little as £24.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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Fly with Cheapflights

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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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