£285+ 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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Southeast Asia in 2025
Find the latest flights to Southeast Asia in 2025, 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 April 2025.
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 April 2025
Explore Southeast Asia
Find flight deals to Southeast Asia
Cheapest flights to Southeast AsiaExplore 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 April 2025.
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 April 2025.
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 April 2025.
Use the filters below to find and compare flights to Southeast Asia that are best for you.
Fly from
Route
Depart
Return
Price
LondonManila
LHR - MNL
LHRMNL
London Heathrow
Thu 24/4
21:20-01:20
1 stop21h 00m
Manila Ninoy Aquino Intl
Wed 18/6
03:55-18:40
1 stop21h 45m
LondonManila
LHR - MNL
LHRMNL
London Heathrow
Tue 22/4
22:00-01:30
1 stop20h 30m
Manila Ninoy Aquino Intl
Tue 13/5
06:25-20:30
1 stop21h 05m
LondonManila
LHR - MNL
LHRMNL
London Heathrow
Sat 3/5
22:10-10:35
1 stop29h 25m
Manila Ninoy Aquino Intl
Sat 10/5
08:20-19:00
1 stop17h 40m
LondonBangkok
LHR - BKK
LHRBKK
London Heathrow
Sun 27/4
22:05-02:15
1 stop22h 10m
Bangkok Suvarnabhumi
Sun 11/5
19:30-19:50
1 stop30h 20m
LondonBangkok
LGW - BKK
LGWBKK
London Gatwick
Sat 3/5
18:00-21:55
1 stop21h 55m
Bangkok Suvarnabhumi
Fri 9/5
02:10-15:00
1 stop18h 50m
LondonBangkok
LHR - BKK
LHRBKK
London Heathrow
Mon 5/5
22:10-14:30
1 stop34h 20m
Bangkok Suvarnabhumi
Fri 23/5
15:05-19:00
1 stop33h 55m
LondonBangkok
STN - BKK
STNBKK
London Stansted
Mon 5/5
07:30-17:25
2 stops27h 55m
Bangkok Suvarnabhumi
Wed 14/5
19:10-23:55
3 stops34h 45m
LondonBangkok
LHR - BKK
LHRBKK
London Heathrow
Tue 13/5
20:25-03:10
2 stops24h 45m
Bangkok Suvarnabhumi
Tue 20/5
04:10-20:30
2 stops22h 20m
LondonSingapore
LHR - SIN
LHRSIN
London Heathrow
Thu 24/4
10:00-12:20
1 stop19h 20m
Singapore Changi
Tue 6/5
20:00-06:55
1 stop17h 55m
LondonSingapore
LHR - SIN
LHRSIN
London Heathrow
Tue 6/5
09:30-09:40
1 stop17h 10m
Singapore Changi
Tue 13/5
21:10-18:45
1 stop28h 35m
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.
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 23 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 16 December 2024.
Users looking for the lowest fares to Southeast Asia should consider flying on Friday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Wednesday 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 Monday (9 on average). You will have fewer flight options on Tuesday, 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 Thai Airways, Singapore Airlines and Qatar Airways.
What are the cheapest airlines that fly to Southeast Asia?
The cheapest airlines flying from London to Southeast Asia are Turkmenistan Airlines, China Eastern and Shenzhen 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 12 April 2025.
Peruse reviews from past customers who have flown China Airlines, Hainan Airlines and Garuda Indonesia to Southeast Asia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
Boarding
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Apr 2025
YVR - TPE
Food
Boarding
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Apr 2025
YVR - TPE
Food
Boarding
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Apr 2025
YVR - TPE
Food
Boarding
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Apr 2025
YVR - TPE
Food
Boarding
Overall
Comfort
Crew
Entertainment
Reviews
Anonymous,Apr 2025
YVR - TPE
FAQs about flying to Southeast Asia
Browse thousands of different options on Cheapflights for your next trip
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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.
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.