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£303+ 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
6 Aug — 13 Aug1
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 7 July 2026.

Tue 3/1111:05
LGW
-
BKK
1 stop31h 25m
Air China
Mon 16/1101:30
BKK
-
LGW
1 stop35h 10m
Air China
Deal found 3/7£471
Sat 28/1120:25
LHR
-
BKK
1 stop20h 45m
Air China
Mon 21/1201:30
BKK
-
LHR
1 stop21h 25m
Air China
Deal found 2/7£471
Tue 22/908:30
STN
-
BKK
2 stops19h 50m
Multiple Airlines
Tue 10/1105:55
BKK
-
STN
1 stop19h 00m
Multiple Airlines
Deal found 6/7£471
Tue 1/1210:30
LGW
-
BKK
1 stop18h 50m
China Eastern
Sat 26/1221:05
BKK
-
LGW
2 stops40h 25m
China Eastern
Deal found 2/7£472
Thu 19/1120:25
LHR
-
BKK
1 stop20h 45m
Air China
Fri 27/1119:30
BKK
-
LHR
1 stop29h 20m
Air China
Deal found 2/7£472
Fri 20/1108:25
STN
-
BKK
1 stop16h 45m
Multiple Airlines
Fri 4/1205:55
BKK
-
STN
1 stop18h 20m
Multiple Airlines
Deal found 2/7£472
Sat 7/1117:00
LGW
-
BKK
2 stops44h 10m
China Eastern
Sat 14/1116:50
BKK
-
LGW
1 stop28h 10m
China Eastern
Deal found 2/7£472
Mon 21/921:20
LHR
-
BKK
2 stops21h 50m
China Eastern
Mon 26/1005:05
BKK
-
LHR
1 stop19h 25m
China Eastern
Deal found 4/7£472
Mon 26/1017:55
STN
-
BKK
1 stop32h 15m
Multiple Airlines
Tue 3/1105:55
BKK
-
STN
1 stop19h 00m
Multiple Airlines
Deal found 5/7£472
Tue 20/1010:20
LGW
-
BKK
1 stop20h 15m
Condor
Mon 2/1123:00
BKK
-
LGW
1 stop17h 35m
Condor
Deal found 6/7£473
Mon 21/921:20
LHR
-
BKK
3 stops40h 30m
China Eastern
Mon 19/1013:35
BKK
-
LHR
1 stop35h 05m
China Eastern
Deal found 3/7£473
Tue 15/907:05
STN
-
BKK
2 stops20h 45m
Multiple Airlines
Tue 17/1105:40
BKK
-
STN
1 stop16h 25m
Multiple Airlines
Deal found 3/7£473

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 7 July 2026
Explore Southeast Asia
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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 7 July 2026.

Return from

£471

One-way from

£303

Popular in

December

Cheapest in

September

Average price

£800
Air China
  • Air China
  • 3/11-16/11
  • 2 total stops
  • 66h 35m total
  • London to Bangkok
Search Deals
XiamenAir
  • XiamenAir
  • 11/9
  • 1 total stop
  • 30h 15m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£44 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for return flights in July 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 7 July 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

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Fri 20/11

10:30-12:20

1 stop18h 50m

Bangkok Suvarnabhumi

Sun 22/11

15:55-14:00

2 stops29h 05m

£482

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 15/11

17:00-17:50

1 stop17h 50m

Bangkok Suvarnabhumi

Tue 1/12

15:55-14:00

2 stops29h 05m

£482

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 29/11

17:00-22:25

1 stop22h 25m

Bangkok Suvarnabhumi

Sun 6/12

21:05-06:30

2 stops40h 25m

£484

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 11/11

10:30-22:35

3 stops29h 05m

Bangkok Suvarnabhumi

Fri 20/11

19:05-14:00

1 stop25h 55m

£484

LondonBangkok

LCY - BKK

LCYBKK

London City

Wed 2/9

08:25-09:30

1 stop19h 05m

Bangkok Suvarnabhumi

Wed 23/9

12:05-07:55

1 stop25h 50m

£580

LondonBangkok

LCY - BKK

LCYBKK

London City

Wed 2/9

10:00-09:30

1 stop17h 30m

Bangkok Suvarnabhumi

Tue 22/9

12:05-09:30

1 stop27h 25m

£580

LondonBangkok

LCY - BKK

LCYBKK

London City

Wed 2/9

09:20-09:30

1 stop18h 10m

Bangkok Suvarnabhumi

Thu 24/9

12:05-07:55

1 stop25h 50m

£588

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 15/9

09:00-07:35

1 stop16h 35m

Bangkok Suvarnabhumi

Wed 30/9

09:55-06:40

1 stop26h 45m

£601

LondonBangkok

LCY - BKK

LCYBKK

London City

Wed 26/8

19:25-07:25

2 stops30h 00m

Bangkok Suvarnabhumi

Mon 14/9

12:25-08:25

2 stops26h 00m

£635

LondonBangkok

LTN - BKK

LTNBKK

London Luton

Fri 20/11

06:50-05:20

1 stop15h 30m

Bangkok Suvarnabhumi

Fri 27/11

23:45-15:35

1 stop22h 50m

£635

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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 24 hours 2 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 £273
Qatar Airways
Qatar Airways
From £441
Emirates
Emirates
From £347
Singapore Airlines
Singapore Airlines
From £188

What are the cheapest airlines that fly to Southeast Asia?

The cheapest airlines flying from London to Southeast Asia are AirAsia X, Norse Atlantic UK and Bangkok Airways.

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 27 June 2026.

Users looking for the lowest fares to Southeast Asia should consider flying on Saturday at midday, 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 7 July 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
1,563 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

8.0

Food

7.8

Boarding

8.3

Overall

8.2

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
8.2
Very Good
1,563 reviews
Singapore Airlines
8.2
Very Good
1,563 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

8.0

Food

7.8

Boarding

8.3

Overall

8.2

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
1,403 reviews
Singapore Airlines
8.2
Very Good
1,563 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

8.0

Food

7.8

Boarding

8.3

Overall

8.2

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
7.3
Good
3,743 reviews
Singapore Airlines
8.2
Very Good
1,563 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

8.0

Food

7.8

Boarding

8.3

Overall

8.2

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
Etihad Airways
7.3
Good
1,476 reviews
Singapore Airlines
8.2
Very Good
1,563 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

8.0

Food

7.8

Boarding

8.3

Overall

8.2

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
7.3
Good
158 reviews
Singapore Airlines
8.2
Very Good
1,563 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

8.0

Food

7.8

Boarding

8.3

Overall

8.2

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, Hahn Air 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 £59, however they can be found for as little as £54.

  • 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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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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