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£284+ 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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
17 Jun — 24 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 18 May 2026.

Mon 23/1110:30
LGW
-
BKK
1 stop18h 50m
China Eastern
Sun 21/201:55
BKK
-
LGW
1 stop19h 05m
China Eastern
Deal found 13/5£446
Thu 10/918:00
LGW
-
BKK
1 stop20h 55m
China Eastern
Thu 10/1207:50
BKK
-
LGW
3 stops29h 40m
China Eastern
Deal found 13/5£447
Tue 1/918:00
LGW
-
BKK
1 stop18h 05m
China Eastern
Wed 25/1104:05
BKK
-
LGW
2 stops40h 55m
China Eastern
Deal found 13/5£448
Sun 21/622:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Sun 12/715:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 14/5£448
Wed 20/515:35
LGW
-
BKK
1 stop15h 00m
Condor
Wed 3/622:35
BKK
-
LGW
1 stop22h 10m
Condor
Deal found 16/5£449
Thu 11/622:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Thu 2/715:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 13/5£449
Tue 19/515:35
LGW
-
BKK
1 stop15h 00m
Condor
Sun 24/522:35
BKK
-
LGW
1 stop22h 05m
Condor
Deal found 16/5£450
Wed 4/1121:10
LHR
-
BKK
1 stop31h 00m
Shenzhen Airlines
Tue 10/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 16/5£450
Sat 6/615:40
LGW
-
BKK
1 stop14h 55m
Condor
Wed 17/622:35
BKK
-
LGW
1 stop16h 20m
Condor
Deal found 14/5£450
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£450
Thu 21/510:20
LGW
-
BKK
1 stop20h 15m
Condor
Wed 3/622:35
BKK
-
LGW
1 stop22h 10m
Condor
Deal found 14/5£451
Tue 2/622:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Tue 16/615:25
BKK
-
LHR
1 stop29h 25m
SAUDIA
Deal found 15/5£451

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 18 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 18 May 2026.

Return from

£448

One-way from

£284

Popular in

December

Cheapest in

September

Average price

£549
China Eastern
  • China Eastern
  • 1/9-25/11
  • 3 total stops
  • 59h 00m total
  • London to Bangkok
Search Deals
China Eastern
  • China Eastern
  • 14/6
  • 1 total stop
  • 22h 15m 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 18 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

LGW - KUL

LGWKUL

London Gatwick

Mon 26/10

10:30-14:45

3 stops44h 15m

Kuala Lumpur Intl

Thu 5/11

15:45-14:00

2 stops30h 15m

£468

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 14/11

21:10-18:30

1 stop38h 20m

Bangkok Suvarnabhumi

Tue 24/11

03:15-19:10

1 stop22h 55m

£474

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 8/11

17:00-12:20

1 stop36h 20m

Bangkok Suvarnabhumi

Sat 28/11

15:55-14:00

3 stops53h 05m

£522

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 29/10

10:30-00:55

1 stop31h 25m

Bangkok Suvarnabhumi

Fri 27/11

21:05-06:30

3 stops40h 25m

£522

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 28/10

17:00-00:55

1 stop24h 55m

Bangkok Suvarnabhumi

Thu 19/11

07:50-14:00

3 stops37h 10m

£522

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 2/11

21:00-00:55

1 stop20h 55m

Bangkok Suvarnabhumi

Mon 16/11

01:55-17:30

1 stop22h 35m

£546

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 13/7

14:45-11:50

1 stop15h 05m

Bangkok Suvarnabhumi

Sun 2/8

03:15-12:45

1 stop15h 30m

£566

LondonBangkok

LCY - BKK

LCYBKK

London City

Wed 16/9

09:20-09:30

1 stop18h 10m

Bangkok Suvarnabhumi

Tue 6/10

12:05-08:50

1 stop26h 45m

£587

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 25/6

09:00-06:20

1 stop15h 20m

Bangkok Suvarnabhumi

Tue 14/7

09:55-06:40

1 stop26h 45m

£593
Fastest return journey

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 9/6

22:15-16:05

Nonstop11h 50m

Bangkok Suvarnabhumi

Fri 7/8

22:35-05:55

Nonstop13h 20m

£616

Flights are sorted by cheapest return flights first.

Deals found on 13/5

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

Cheapflights Insights

Everything you need to know about your flight to Southeast Asia

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.

How long is the flight to Southeast Asia?

On average, a flight from London to Southeast Asia takes 23 hours 51 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 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.

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 £320
Qatar Airways
Qatar Airways
From £380
Emirates
Emirates
From £295
Singapore Airlines
Singapore Airlines
From £390

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).

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 18 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
1,518 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

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
1,518 reviews
Singapore Airlines
8.2
Very Good
1,518 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

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
1,334 reviews
Singapore Airlines
8.2
Very Good
1,518 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

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
3,726 reviews
Singapore Airlines
8.2
Very Good
1,518 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

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
1,439 reviews
Singapore Airlines
8.2
Very Good
1,518 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

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
1,518 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.6

Boarding

8.3

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 £82, however they can be found for as little as £23.

  • 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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