Find flights
Deals
Airlines

£286+ 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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
17 May — 24 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 17 April 2026.

Mon 16/1121:10
LHR
-
BKK
1 stop38h 20m
Shenzhen Airlines
Sun 29/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 14/4£430
Thu 23/411:35
LGW
-
BKK
1 stop18h 55m
China Eastern
Mon 4/503:00
BKK
-
LGW
2 stops33h 40m
China Eastern
Deal found 14/4£431
Mon 2/1121:10
LHR
-
BKK
1 stop31h 00m
Shenzhen Airlines
Sun 15/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 13/4£431
Mon 9/1110:30
LGW
-
BKK
3 stops26h 40m
China Eastern
Sun 22/1113:35
BKK
-
LGW
1 stop31h 25m
China Eastern
Deal found 13/4£432
Fri 22/516:15
LHR
-
BKK
1 stop15h 30m
SAUDIA
Thu 25/615:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 14/4£432
Tue 14/422:40
LHR
-
BKK
1 stop19h 30m
Air China
Thu 7/501:30
BKK
-
LHR
1 stop24h 55m
Air China
Deal found 13/4£432
Sat 6/609:15
LGW
-
BKK
1 stop15h 35m
Qatar Airways
Fri 12/619:45
BKK
-
LGW
1 stop18h 00m
Qatar Airways
Deal found 12/4£433
Wed 29/420:25
LHR
-
BKK
1 stop21h 45m
Air China
Mon 11/519:35
BKK
-
LHR
1 stop28h 05m
Air China
Deal found 12/4£433
Sat 26/911:35
LGW
-
BKK
1 stop18h 55m
China Eastern
Sat 10/1021:55
BKK
-
LGW
1 stop38h 45m
China Eastern
Deal found 14/4£434
Mon 2/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Sun 22/1119:30
BKK
-
LHR
1 stop30h 40m
Shenzhen Airlines
Deal found 16/4£434
Mon 21/911:35
LGW
-
BKK
3 stops26h 15m
China Eastern
Tue 20/1002:10
BKK
-
LGW
1 stop18h 50m
China Eastern
Deal found 16/4£435
Tue 2/622:10
LHR
-
BKK
1 stop19h 55m
SAUDIA
Thu 2/715:25
BKK
-
LHR
1 stop22h 05m
SAUDIA
Deal found 14/4£435

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 17 April 2026
Explore Southeast Asia
Flights to Bangkok
Flights to Manila
Flights to Kuala Lumpur
Flights to Denpasar
Flights to Phuket City
Flights to Singapore
Flights to Ho Chi Minh City
Flights to Cebu City
Flights to Hanoi
Flights to Jakarta
Flights to Angeles City
Flights to Ko Samui
Flights to Davao City
Flights to Penang
Flights to Da Nang
Flights to Phnom Penh
Flights to Chiang Mai
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 17 April 2026.

Return from

£431

One-way from

£286

Popular in

July

Cheapest in

May

Average price

£610
China Eastern
  • China Eastern
  • 27/4-4/5
  • 3 total stops
  • 52h 35m total
  • London to Bangkok
Search Deals
1/6
  • 1/6
  • 2 total stops
  • 27h 30m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£19 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 17 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

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 28/4

18:00-00:40

1 stop24h 40m

Bangkok Suvarnabhumi

Tue 12/5

21:55-06:40

1 stop38h 45m

£492

LondonKuala Lumpur

LGW - KUL

LGWKUL

London Gatwick

Thu 2/7

10:25-09:55

Nonstop16h 30m

Kuala Lumpur Intl

Mon 6/7

22:00-07:20

Nonstop16h 20m

£503

LondonKuala Lumpur

LGW - KUL

LGWKUL

London Gatwick

Wed 29/4

18:00-06:05

1 stop29h 05m

Kuala Lumpur Intl

Wed 13/5

16:00-06:40

1 stop21h 40m

£504

LondonKuala Lumpur

LGW - KUL

LGWKUL

London Gatwick

Sun 11/10

10:25-09:55

Nonstop16h 30m

Kuala Lumpur Intl

Sun 25/10

22:00-06:25

Nonstop16h 25m

£514

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 30/4

22:10-00:05

1 stop19h 55m

Bangkok Suvarnabhumi

Wed 13/5

15:20-12:40

1 stop75h 20m

£515

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 29/4

18:00-22:15

3 stops22h 15m

Bangkok Suvarnabhumi

Tue 5/5

02:10-15:00

1 stop18h 50m

£548

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 8/5

14:45-18:10

1 stop21h 25m

Bangkok Suvarnabhumi

Wed 27/5

09:40-18:45

1 stop15h 05m

£566

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Sun 10/5

21:20-23:40

2 stops43h 20m

Kuala Lumpur Intl

Sun 17/5

15:40-18:40

3 stops34h 00m

£593

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 4/6

09:15-06:50

1 stop15h 35m

Bangkok Suvarnabhumi

Sat 20/6

21:05-06:40

1 stop15h 35m

£594

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 3/7

14:45-09:40

1 stop35h 55m

Singapore Changi

Sun 5/7

21:00-15:05

1 stop25h 05m

£659

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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 51 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 11 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 Friday 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 (9 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 £321
Qatar Airways
Qatar Airways
From £374
Emirates
Emirates
From £282
Singapore Airlines
Singapore Airlines
From £384

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 17 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
1,497 reviews
Check prices

Boarding

8.3

Crew

8.6

Entertainment

8.0

Food

7.8

Comfort

8.0

Overall

8.2

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
1,497 reviews
Singapore Airlines
8.2
Very Good
1,497 reviews
Check prices

Boarding

8.3

Crew

8.6

Entertainment

8.0

Food

7.8

Comfort

8.0

Overall

8.2

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
1,275 reviews
Singapore Airlines
8.2
Very Good
1,497 reviews
Check prices

Boarding

8.3

Crew

8.6

Entertainment

8.0

Food

7.8

Comfort

8.0

Overall

8.2

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
1,497 reviews
Check prices

Boarding

8.3

Crew

8.6

Entertainment

8.0

Food

7.8

Comfort

8.0

Overall

8.2

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
1,432 reviews
Singapore Airlines
8.2
Very Good
1,497 reviews
Check prices

Boarding

8.3

Crew

8.6

Entertainment

8.0

Food

7.8

Comfort

8.0

Overall

8.2

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
1,497 reviews
Check prices

Boarding

8.3

Crew

8.6

Entertainment

8.0

Food

7.8

Comfort

8.0

Overall

8.2

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 £533, however they can be found for as little as £40.

  • 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 25 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Southeast Asia by cabin class

Find flights to Southeast Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First class flights to Southeast Asia
Business class flights to Southeast Asia
Prem Economy class flights to Southeast Asia
Economy class flights to Southeast Asia

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Southeast Asia?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Southeast Asia today with Cheapflights!

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.