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£232+ Cheap flights to Southeast Asia

— BKK
22 Oct — 29 Oct1
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

Wed 28/1021:10 -
1 stop20h 30m
Mon 9/1102:55 -
1 stop25h 35m
Deal found 21/9£401
Sun 20/922:05 -
1 stop20h 35m
Mon 5/1002:55 -
1 stop23h 55m
Deal found 17/9£402
Mon 21/922:10 -
1 stop18h 05m
Sun 4/1017:45 -
1 stop32h 35m
Deal found 19/9£403
Thu 24/922:10 -
1 stop29h 25m
Wed 4/1112:00 -
1 stop38h 35m
Deal found 21/9£404
Sat 7/1122:00 -
1 stop28h 50m
Mon 30/1112:00 -
1 stop38h 35m
Deal found 22/9£404
Mon 21/922:10 -
1 stop18h 05m
Thu 8/1008:20 -
1 stop18h 00m
Deal found 19/9£405
Fri 25/912:35 -
1 stop25h 10m
Sat 10/1012:40 -
1 stop24h 55m
Deal found 19/9£406
Thu 24/920:20 -
1 stop35h 15m
Fri 2/1019:35 -
1 stop17h 00m
Deal found 19/9£406
Fri 25/922:10 -
1 stop32h 40m
Mon 12/1012:45 -
1 stop36h 35m
Deal found 19/9£406
Fri 20/1107:10 -
2 stops26h 55m
Fri 4/1205:55 -
1 stop21h 30m
Deal found 20/9£406
Mon 21/922:40 -
1 stop18h 40m
Wed 30/902:55 -
1 stop24h 20m
Deal found 17/9£407
Tue 1/1210:40 -
1 stop31h 50m
Tue 15/1213:50 -
1 stop34h 20m
Deal found 17/9£407

Find flights to Southeast Asia

Explore Southeast Asia
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Find flight deals to Southeast Asia

Return from

£403

One-way from

£232

Popular in

December

Cheapest in

September

Average price

£540
Air China
  • Air China
  • 19/2-12/3
  • 2 total stops
  • 40h 40m total
  • London to Bangkok
Search Deals
China Southern
  • China Southern
  • 28/9-31/12
  • 1 total stop
  • 18h 10m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for return flights in September 2026
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Cheapflights Fare Finder

 
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

LTN London Luton - BKK Bangkok Suvarnabhumi

LTNBKK

London Luton

Sun 15/11

12:15-01:20

2 stops54h 05m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£238

LondonBangkok

LTN London Luton - BKK Bangkok Suvarnabhumi

LTNBKK

London Luton

Sat 26/9

12:45-12:30

2 stops41h 45m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£256

LondonBangkok

LTN London Luton - BKK Bangkok Suvarnabhumi

LTNBKK

London Luton

Tue 1/12

07:45-14:20

3 stops47h 35m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£259

LondonBangkok

LTN London Luton - BKK Bangkok Suvarnabhumi

LTNBKK

London Luton

Thu 5/11

17:15-06:45

2 stops54h 30m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£277

LondonBangkok

LTN London Luton - BKK Bangkok Suvarnabhumi

LTNBKK

London Luton

Wed 28/10

19:05-10:25

2 stops32h 20m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£278

LondonBangkok

LTN London Luton - BKK Bangkok Suvarnabhumi

LTNBKK

London Luton

Fri 6/11

17:25-17:05

2 stops16h 40m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£279

LondonBangkok

LTN London Luton - BKK Bangkok Suvarnabhumi

LTNBKK

London Luton

Fri 16/10

15:15-06:55

2 stops33h 40m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£284

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Wed 30/9

22:05-18:15

1 stop38h 10m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£288

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Tue 29/9

22:00-02:15

1 stop22h 15m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£288

LondonBangkok

LGW London Gatwick - BKK Bangkok Suvarnabhumi

LGWBKK

London Gatwick

Tue 29/9

19:35-17:35

1 stop16h 00m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£291

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 28 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 Monday (9 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 £278
Qatar Airways
Qatar Airways
From £441
Emirates
Emirates
From £370
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 HK Express, AirAsia X and Bangkok Airways.

Rainfall in Southeast Asia 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

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 45 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?

Users looking for the lowest fares to Southeast Asia should consider flying on Sunday 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

Read through reviews of airlines serving Southeast Asia, such as Singapore Airlines,Cathay Pacific, andAir China. 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
1,607 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Crew

8.6

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
1,607 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Crew

8.6

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
1,490 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Crew

8.6

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
7.5
Good
166 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Crew

8.6

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
3,731 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Crew

8.6

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
1,533 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Crew

8.6

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, HK Express 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 £77, however they can be found for as little as £20.

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

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