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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
12 Jul — 19 Jul1
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 12 June 2026.

Thu 11/619:35
LGW
-
BKK
1 stop35h 00m
Condor
Fri 26/622:35
BKK
-
LGW
1 stop22h 05m
Condor
Deal found 9/6£466
Mon 2/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Tue 17/1119:30
BKK
-
LHR
1 stop30h 40m
Shenzhen Airlines
Deal found 8/6£466
Wed 28/1017:00
LGW
-
BKK
1 stop36h 20m
China Eastern
Thu 20/502:10
BKK
-
LGW
1 stop18h 50m
China Eastern
Deal found 8/6£466
Mon 2/1121:10
LHR
-
BKK
1 stop31h 00m
Shenzhen Airlines
Sun 22/1119:30
BKK
-
LHR
1 stop30h 40m
Shenzhen Airlines
Deal found 9/6£466
Wed 24/619:40
LGW
-
BKK
1 stop34h 55m
Condor
Wed 1/722:35
BKK
-
LGW
1 stop22h 10m
Condor
Deal found 9/6£467
Mon 2/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Tue 1/1203:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 10/6£467
Sat 31/1017:00
LGW
-
BKK
1 stop36h 20m
China Eastern
Sat 14/1101:55
BKK
-
LGW
1 stop19h 05m
China Eastern
Deal found 10/6£468
Sat 21/1121:10
LHR
-
BKK
1 stop22h 05m
Shenzhen Airlines
Thu 3/1212:10
BKK
-
LHR
1 stop38h 00m
Shenzhen Airlines
Deal found 6/6£468
Mon 30/1117:00
LGW
-
BKK
1 stop24h 55m
China Eastern
Wed 20/101:55
BKK
-
LGW
1 stop35h 35m
China Eastern
Deal found 11/6£469
Thu 3/1221:35
LHR
-
BKK
1 stop31h 55m
Air China
Tue 8/1201:30
BKK
-
LHR
1 stop23h 20m
Air China
Deal found 10/6£469
Tue 27/1010:30
LGW
-
BKK
1 stop18h 50m
China Eastern
Wed 25/1113:35
BKK
-
LGW
1 stop23h 55m
China Eastern
Deal found 9/6£469
Mon 2/1121:10
LHR
-
BKK
1 stop31h 00m
Shenzhen Airlines
Tue 17/1103:15
BKK
-
LHR
1 stop22h 55m
Shenzhen Airlines
Deal found 8/6£469

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 12 June 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 Hanoi
Flights to Cebu City
Flights to Jakarta
Flights to Angeles City
Flights to Ko Samui
Flights to Davao City
Flights to Da Nang
Flights to Penang
Flights to Chiang Mai
Flights to Krabi
Flights to Phnom Penh
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 12 June 2026.

Return from

£466

One-way from

£286

Popular in

December

Cheapest in

September

Average price

£551
Condor
  • Condor
  • 30/6-20/9
  • 2 total stops
  • 31h 25m total
  • London to Bangkok
Search Deals
China Eastern
  • China Eastern
  • 29/8
  • 1 total stop
  • 22h 15m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£40 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 June 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 12 June 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

Mon 9/11

10:30-12:20

1 stop18h 50m

Bangkok Suvarnabhumi

Wed 25/11

21:05-06:30

2 stops40h 25m

£472

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 27/8

15:40-12:35

1 stop14h 55m

Bangkok Suvarnabhumi

Mon 23/11

23:50-09:35

1 stop16h 45m

£474

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 3/12

10:30-12:20

1 stop18h 50m

Bangkok Suvarnabhumi

Thu 24/12

07:50-06:30

3 stops29h 40m

£475

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 18/11

17:00-12:20

1 stop36h 20m

Bangkok Suvarnabhumi

Sat 28/11

15:55-06:30

2 stops45h 35m

£523
Fastest return journey

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 2/11

21:20-16:05

Nonstop11h 45m

Bangkok Suvarnabhumi

Tue 17/11

23:05-05:25

Nonstop13h 20m

£599

LondonBangkok

LGW - BKK

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

LGW - BKK

LGWBKK

London Gatwick

Sat 19/9

22:15-16:05

Nonstop11h 50m

Bangkok Suvarnabhumi

Sun 20/9

22:35-05:55

Nonstop13h 20m

£599

LondonBangkok

STN - BKK

STNBKK

London Stansted

Tue 29/9

16:25-14:00

1 stop15h 35m

Bangkok Suvarnabhumi

Tue 6/10

22:55-10:10

1 stop17h 15m

£602

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Thu 17/9

14:45-08:25

1 stop34h 40m

Kuala Lumpur Intl

Tue 29/9

09:50-07:00

1 stop28h 10m

£635

LondonBangkok

LTN - BKK

LTNBKK

London Luton

Wed 15/7

14:45-06:30

2 stops33h 45m

Bangkok Suvarnabhumi

Wed 22/7

07:30-08:30

2 stops31h 00m

£653

Flights are sorted by cheapest return flights first.

Deals found on 10/6

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 39 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 £437
Emirates
Emirates
From £339
Singapore Airlines
Singapore Airlines
From £388

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).

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 June 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.

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 12 June 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
1,543 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Singapore Airlines
8.2
Very Good
1,543 reviews
Singapore Airlines
8.2
Very Good
1,543 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Cathay Pacific
7.6
Good
1,371 reviews
Singapore Airlines
8.2
Very Good
1,543 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Qatar Airways
7.3
Good
3,726 reviews
Singapore Airlines
8.2
Very Good
1,543 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Etihad Airways
7.3
Good
1,452 reviews
Singapore Airlines
8.2
Very Good
1,543 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Air China
7.3
Good
154 reviews
Singapore Airlines
8.2
Very Good
1,543 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.1

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

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, Juneyao 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 £1,175, however they can be found for as little as £57.

  • 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

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.