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£297+ 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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
3 Aug — 10 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 4 July 2026.

Sat 7/1117:00
LGW
-
BKK
2 stops44h 10m
China Eastern
Sat 21/1115:55
BKK
-
LGW
2 stops53h 05m
China Eastern
Deal found 29/6£467
Sat 12/915:40
LGW
-
BKK
1 stop14h 55m
Condor
Thu 24/922:35
BKK
-
LGW
1 stop22h 10m
Condor
Deal found 29/6£468
Fri 18/921:20
LHR
-
BKK
1 stop24h 45m
China Eastern
Sun 4/1005:05
BKK
-
LHR
1 stop19h 35m
China Eastern
Deal found 28/6£468
Tue 27/1010:30
LGW
-
BKK
1 stop18h 50m
China Eastern
Sun 22/1101:55
BKK
-
LGW
1 stop19h 05m
China Eastern
Deal found 29/6£469
Wed 11/1120:25
LHR
-
BKK
1 stop20h 45m
Air China
Tue 17/1101:30
BKK
-
LHR
1 stop21h 25m
Air China
Deal found 28/6£469
Sat 29/810:20
LGW
-
BKK
1 stop20h 15m
Condor
Sun 20/922:35
BKK
-
LGW
1 stop22h 05m
Condor
Deal found 1/7£469
Sun 20/921:20
LHR
-
BKK
1 stop22h 35m
China Eastern
Mon 19/1003:00
BKK
-
LHR
2 stops21h 40m
China Eastern
Deal found 29/6£469
Tue 3/1110:30
LGW
-
BKK
1 stop18h 50m
China Eastern
Thu 19/1113:35
BKK
-
LGW
1 stop31h 25m
China Eastern
Deal found 1/7£470
Thu 29/1017:40
LHR
-
BKK
1 stop17h 25m
Air China
Wed 4/1119:30
BKK
-
LHR
1 stop27h 25m
Air China
Deal found 28/6£470
Wed 28/1007:35
STN
-
BKK
2 stops19h 50m
Multiple Airlines
Sun 8/1114:55
BKK
-
STN
2 stops34h 25m
Multiple Airlines
Deal found 29/6£470
Wed 28/1010:30
LGW
-
BKK
1 stop18h 50m
China Eastern
Sat 7/1107:50
BKK
-
LGW
3 stops29h 40m
China Eastern
Deal found 29/6£471
Sat 28/1121:35
LHR
-
BKK
1 stop31h 55m
Air China
Wed 24/201:30
BKK
-
LHR
1 stop23h 20m
Air China
Deal found 30/6£471

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 4 July 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 4 July 2026.

Return from

£467

One-way from

£297

Popular in

December

Cheapest in

September

Average price

£801
China Eastern
  • China Eastern
  • 7/11-4/12
  • 4 total stops
  • 73h 50m total
  • London to Bangkok
Search Deals
27/10
  • 27/10
  • 2 total stops
  • 34h 35m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£41 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 4 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

Thu 3/12

10:30-14:55

2 stops21h 25m

Bangkok Suvarnabhumi

Mon 18/1

21:05-06:30

3 stops40h 25m

£478

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Fri 4/12

10:30-02:05

2 stops32h 35m

Bangkok Suvarnabhumi

Fri 18/12

15:55-06:30

3 stops45h 35m

£480

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

Sun 6/12

17:00-00:55

1 stop24h 55m

Bangkok Suvarnabhumi

Mon 21/12

07:50-06:30

2 stops29h 40m

£520

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Fri 6/11

10:30-20:10

3 stops26h 40m

Bangkok Suvarnabhumi

Sun 8/11

15:55-06:30

2 stops45h 35m

£526

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 3/11

21:05-10:40

2 stops30h 35m

Bangkok Suvarnabhumi

Thu 12/11

12:35-08:55

2 stops27h 20m

£579

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

LHR - BKK

LHRBKK

London Heathrow

Sat 3/10

10:00-09:45

1 stop17h 45m

Bangkok Suvarnabhumi

Thu 15/10

20:15-15:20

1 stop25h 05m

£621

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 30/8

09:00-06:20

1 stop15h 20m

Bangkok Suvarnabhumi

Wed 23/9

20:00-06:40

1 stop16h 40m

£650

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Thu 5/11

18:40-22:35

2 stops19h 55m

Manila Ninoy Aquino Intl

Mon 30/11

19:45-13:40

3 stops25h 55m

£661

Flights are sorted by cheapest return flights first.

Deals found on 28/6

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
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 53 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 £319
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 Bangkok Airways, AirAsia X and Norse Atlantic UK.

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 4 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
1,560 reviews
Check prices

Entertainment

8.1

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.6

Boarding

8.3

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
1,560 reviews
Singapore Airlines
8.2
Very Good
1,560 reviews
Check prices

Entertainment

8.1

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.6

Boarding

8.3

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
1,560 reviews
Check prices

Entertainment

8.1

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.6

Boarding

8.3

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
3,742 reviews
Singapore Airlines
8.2
Very Good
1,560 reviews
Check prices

Entertainment

8.1

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.6

Boarding

8.3

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
1,471 reviews
Singapore Airlines
8.2
Very Good
1,560 reviews
Check prices

Entertainment

8.1

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.6

Boarding

8.3

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
157 reviews
Singapore Airlines
8.2
Very Good
1,560 reviews
Check prices

Entertainment

8.1

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.6

Boarding

8.3

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 £55.

  • 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 (4 hours 55 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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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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