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£277+ 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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
8 Sep — 15 Sep1
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 9 August 2026.

Wed 18/1109:50 -
1 stop20h 05m
Wed 2/1209:20 -
Nonstop13h 15m
Deal found 7/8£458
Sat 5/920:35 -
2 stops35h 00m
Wed 30/909:15 -
2 stops31h 45m
Deal found 8/8£458
Sat 14/1121:35 -
1 stop31h 55m
Mon 30/1101:30 -
1 stop21h 25m
Deal found 6/8£458
Sat 31/1011:20 -
2 stops29h 50m
Sat 14/1100:20 -
2 stops29h 35m
Deal found 7/8£458
Mon 23/1109:50 -
1 stop17h 20m
Tue 8/1214:50 -
Nonstop13h 15m
Deal found 8/8£459
Thu 10/915:15 -
2 stops20h 55m
Wed 30/915:55 -
2 stops28h 30m
Deal found 8/8£459
Tue 3/1121:35 -
1 stop31h 55m
Thu 19/1115:15 -
1 stop31h 40m
Deal found 7/8£459
Thu 29/1006:25 -
2 stops23h 05m
Sat 14/1119:30 -
2 stops25h 40m
Deal found 8/8£459
Fri 18/915:45 -
1 stop14h 50m
Sun 27/922:35 -
1 stop26h 15m
Deal found 5/8£459
Mon 16/1107:30 -
2 stops24h 55m
Thu 26/1122:30 -
2 stops28h 15m
Deal found 6/8£459
Tue 3/1121:35 -
1 stop31h 55m
Sun 22/1119:30 -
1 stop29h 20m
Deal found 8/8£459
Sun 13/906:00 -
2 stops30h 20m
Sat 19/915:55 -
2 stops28h 45m
Deal found 7/8£459

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 9 August 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 9 August 2026.

Return from

£458

One-way from

£276

Popular in

December

Cheapest in

September

Average price

£702
Norse Atlantic UK
  • Norse Atlantic UK
  • 18/11-2/12
  • 1 total stop
  • 33h 20m total
  • London to Bangkok
Search Deals
23/8
  • 23/8
  • 3 total stops
  • 29h 35m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for return flights in August 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 9 August 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 London Gatwick - BKK Bangkok Suvarnabhumi

LGWBKK

London Gatwick

Mon 23/11

17:00-18:25

1 stop18h 25m

Bangkok Suvarnabhumi

Sun 6/12

19:55-14:00

1 stop25h 05m

£473

LondonManila

LGW London Gatwick - MNL Manila Ninoy Aquino Intl

LGWMNL

London Gatwick

Wed 3/2

10:35-14:50

1 stop20h 15m

Manila Ninoy Aquino Intl

Thu 4/3

16:25-06:20

1 stop21h 55m

£548

LondonBangkok

LTN London Luton - BKK Bangkok Suvarnabhumi

LTNBKK

London Luton

Sat 22/8

07:05-19:15

2 stops30h 10m

Bangkok Suvarnabhumi

Tue 1/9

15:55-15:30

2 stops29h 35m

£552

LondonBangkok

LGW London Gatwick - BKK Bangkok Suvarnabhumi

LGWBKK

London Gatwick

Tue 13/10

11:35-15:50

1 stop22h 15m

Bangkok Suvarnabhumi

Sun 15/11

03:10-06:30

2 stops34h 20m

£570

LondonBangkok

LGW London Gatwick - BKK Bangkok Suvarnabhumi

LGWBKK

London Gatwick

Wed 2/9

11:35-19:50

2 stops26h 15m

Bangkok Suvarnabhumi

Thu 10/9

02:10-19:10

1 stop23h 00m

£570

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Tue 29/9

21:45-18:10

1 stop14h 25m

Bangkok Suvarnabhumi

Thu 15/10

03:15-15:05

1 stop17h 50m

£590

LondonBangkok

LGW London Gatwick - BKK Bangkok Suvarnabhumi

LGWBKK

London Gatwick

Thu 27/8

09:00-06:20

1 stop15h 20m

Bangkok Suvarnabhumi

Wed 9/9

22:35-05:55

Nonstop13h 20m

£591

LondonManila

LHR London Heathrow - MNL Manila Ninoy Aquino Intl

LHRMNL

London Heathrow

Mon 1/2

20:05-22:50

2 stops42h 45m

Manila Ninoy Aquino Intl

Mon 15/2

19:45-08:05

2 stops20h 20m

£597

LondonBangkok

LGW London Gatwick - BKK Bangkok Suvarnabhumi

LGWBKK

London Gatwick

Tue 8/9

22:15-16:05

Nonstop11h 50m

Bangkok Suvarnabhumi

Tue 27/10

23:05-05:25

Nonstop13h 20m

£599

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Tue 8/9

08:40-09:30

1 stop18h 50m

Bangkok Suvarnabhumi

Wed 7/10

12:05-07:55

2 stops25h 50m

£600

Flights are sorted by cheapest return flights first.

Deals found on 7/8

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 23 hours 46 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 (8 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 £316
Qatar Airways
Qatar Airways
From £437
Emirates
Emirates
From £343
Singapore Airlines
Singapore Airlines
From £186

What are the cheapest airlines that fly to Southeast Asia?

The cheapest airlines flying from London to Southeast Asia are AirAsia X, Bangkok Airways 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 8 August 2026.

Users looking for the lowest fares to Southeast Asia should consider flying on Tuesday 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 9 August 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
1,584 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Overall

8.2

Boarding

8.3

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
8.2
Very Good
1,584 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Overall

8.2

Boarding

8.3

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
7.5
Good
1,444 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Overall

8.2

Boarding

8.3

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
3,739 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Overall

8.2

Boarding

8.3

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
7.4
Good
160 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Overall

8.2

Boarding

8.3

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
Etihad Airways
7.3
Good
1,500 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Food

7.8

Comfort

8.0

Entertainment

8.1

Overall

8.2

Boarding

8.3

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, 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 £83, however they can be found for as little as £44.

  • 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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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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