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£287+ 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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
6 May — 13 May1
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 6 April 2026.

Wed 3/618:05
LGW
-
BKK
2 stops23h 45m
Multiple Airlines
Mon 15/603:15
BKK
-
LGW
2 stops23h 55m
Multiple Airlines
Deal found 1/4£435
Wed 3/614:50
LTN
-
BKK
2 stops27h 00m
Multiple Airlines
Mon 15/603:15
BKK
-
LTN
2 stops24h 30m
Multiple Airlines
Deal found 1/4£435
Wed 6/520:25
LHR
-
BKK
1 stop21h 45m
Air China
Sat 23/519:35
BKK
-
LHR
1 stop30h 50m
Air China
Deal found 1/4£435
Tue 5/507:45
STN
-
BKK
2 stops28h 25m
Multiple Airlines
Sat 16/509:15
BKK
-
STN
2 stops28h 40m
Multiple Airlines
Deal found 2/4£435
Thu 18/615:40
LGW
-
BKK
1 stop14h 55m
Condor
Mon 6/722:35
BKK
-
LGW
1 stop16h 25m
Condor
Deal found 2/4£435
Tue 5/516:10
LTN
-
BKK
2 stops20h 00m
Multiple Airlines
Mon 25/515:55
BKK
-
LTN
2 stops26h 50m
Multiple Airlines
Deal found 1/4£435
Mon 18/520:25
LHR
-
BKK
1 stop21h 45m
Air China
Mon 25/519:35
BKK
-
LHR
1 stop28h 05m
Air China
Deal found 4/4£435
Sun 17/508:55
LGW
-
BKK
2 stops27h 15m
Multiple Airlines
Mon 1/609:45
BKK
-
LGW
2 stops28h 10m
Multiple Airlines
Deal found 4/4£436
Tue 12/519:50
LTN
-
BKK
2 stops28h 55m
Multiple Airlines
Wed 20/509:15
BKK
-
LTN
2 stops33h 20m
Multiple Airlines
Deal found 5/4£436
Tue 12/517:05
STN
-
BKK
2 stops19h 05m
Multiple Airlines
Thu 21/509:15
BKK
-
STN
2 stops28h 35m
Multiple Airlines
Deal found 4/4£436
Fri 4/1210:30
LGW
-
BKK
3 stops26h 40m
China Eastern
Tue 19/113:35
BKK
-
LGW
1 stop31h 25m
China Eastern
Deal found 6/4£437
Mon 11/508:15
LTN
-
BKK
2 stops33h 35m
Multiple Airlines
Mon 25/509:15
BKK
-
LTN
2 stops18h 25m
Multiple Airlines
Deal found 4/4£437

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 6 April 2026
Explore Southeast Asia
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Flights to Phnom Penh
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Flights to Krabi
Flights to Kota Kinabalu
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 6 April 2026.

Return from

£435

One-way from

£287

Popular in

July

Cheapest in

May

Average price

£628
3/6-15/6
  • 3/6-15/6
  • 4 total stops
  • 47h 40m total
  • London to Bangkok
Search Deals
AirAsia X
  • AirAsia X
  • 31/8
  • 1 total stop
  • 16h 30m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for return flights in April 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 6 April 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

LHR - KUL

LHRKUL

London Heathrow

Fri 12/6

21:45-19:45

1 stop15h 00m

Kuala Lumpur Intl

Sun 5/7

09:50-18:45

1 stop15h 55m

£481

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 16/5

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Tue 26/5

19:15-20:00

1 stop30h 45m

£494

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 6/7

21:45-06:15

1 stop26h 30m

Bangkok Suvarnabhumi

Wed 8/7

03:15-18:45

1 stop21h 30m

£575

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 10/6

11:35-12:30

1 stop18h 55m

Bangkok Suvarnabhumi

Sun 14/6

16:50-15:00

1 stop28h 10m

£615

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 14/5

11:35-01:35

2 stops32h 00m

Bangkok Suvarnabhumi

Tue 26/5

20:50-15:00

3 stops48h 10m

£622

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 31/5

11:35-12:30

1 stop18h 55m

Bangkok Suvarnabhumi

Tue 28/7

13:35-15:00

1 stop31h 25m

£625

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 18/6

18:00-04:05

1 stop28h 05m

Bangkok Suvarnabhumi

Wed 8/7

20:50-15:00

2 stops48h 10m

£627

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 31/5

20:50-14:40

2 stops34h 50m

Singapore Changi

Mon 15/6

21:15-19:10

2 stops28h 55m

£640

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sun 28/6

21:45-11:05

1 stop30h 20m

Manila Ninoy Aquino Intl

Tue 14/7

05:30-18:45

1 stop20h 15m

£662

LondonBangkok

LCY - BKK

LCYBKK

London City

Wed 20/5

10:00-09:30

1 stop17h 30m

Bangkok Suvarnabhumi

Fri 29/5

08:30-16:40

1 stop14h 10m

£669

Flights are sorted by cheapest return flights first.

Deals found on 5/4

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 52 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 4 April 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 Thursday 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 (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

What are the most popular airlines that fly to Southeast Asia?

The most popular airlines flying from London to Southeast Asia are Qatar Airways, Etihad Airways and Singapore Airlines.

Etihad Airways
Etihad Airways
From £335
Qatar Airways
Qatar Airways
From £384
Emirates
Emirates
From £289
Singapore Airlines
Singapore Airlines
From £365

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 6 April 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
1,490 reviews
Check prices

Food

7.8

Entertainment

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Singapore Airlines
8.2
Very Good
1,490 reviews
Singapore Airlines
8.2
Very Good
1,490 reviews
Check prices

Food

7.8

Entertainment

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Cathay Pacific
7.6
Good
1,248 reviews
Singapore Airlines
8.2
Very Good
1,490 reviews
Check prices

Food

7.8

Entertainment

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Qatar Airways
7.4
Good
3,730 reviews
Singapore Airlines
8.2
Very Good
1,490 reviews
Check prices

Food

7.8

Entertainment

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Etihad Airways
7.3
Good
1,428 reviews
Singapore Airlines
8.2
Very Good
1,490 reviews
Check prices

Food

7.8

Entertainment

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Air China
7.3
Good
146 reviews
Singapore Airlines
8.2
Very Good
1,490 reviews
Check prices

Food

7.8

Entertainment

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

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, Turkmenistan 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 £547, however they can be found for as little as £41.

  • 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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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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