Find flights
Deals
Airlines

£275+ 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 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
— BKK
4 May — 11 May1
1 adult

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 29 April 2025.

Return from

£410

One-way from

£275

Popular in

December

Cheapest in

May

Average price

£689
Hainan Airlines
  • Hainan Airlines
  • 13/6-24/6
  • 3 total stops
  • 76h 40m total
  • London to Bangkok
Search Deals
Hainan Airlines
  • Hainan Airlines
  • 26/5
  • 1 total stop
  • 30h 00m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for return flights in April 2025
Search Deals

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 29 April 2025
Explore Southeast Asia
Flights to Bangkok
Flights to Manila
Flights to Denpasar
Flights to Kuala Lumpur
Flights to Phuket City
Flights to Singapore

Find flight deals to Southeast Asia

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 29 April 2025.

Wed 11/621:20LHR - MNL
1 stop21h 00mChina Eastern
Wed 18/603:55MNL - LHR
1 stop21h 45mChina Eastern
Deal found 28/4£410
Fri 13/622:00LHR - BKK
2 stops38h 15mHainan Airlines
Tue 24/611:05BKK - LHR
1 stop38h 25mHainan Airlines
Deal found 28/4£410
Sun 28/922:05LHR - MNL
1 stop20h 35mShenzhen Airlines
Fri 10/1002:55MNL - LHR
1 stop23h 55mShenzhen Airlines
Deal found 28/4£411
Mon 2/618:05LGW - BKK
1 stop18h 00mChina Eastern
Sun 8/621:55BKK - LGW
1 stop23h 15mChina Eastern
Deal found 28/4£411
Thu 8/521:20LHR - BKK
1 stop17h 35mChina Eastern
Thu 5/620:50BKK - LHR
2 stops27h 50mChina Eastern
Deal found 29/4£411
Fri 30/515:20STN - BKK
2 stops34h 50mMultiple Airlines
Wed 11/621:55BKK - STN
3 stops32h 00mMultiple Airlines
Deal found 29/4£412
Tue 27/522:10LHR - BKK
1 stop31h 30mChina Southern
Thu 19/603:00BKK - LHR
1 stop22h 00mChina Southern
Deal found 28/4£414
Wed 4/612:35LGW - BKK
1 stop23h 35mAir China
Mon 9/601:30BKK - LGW
1 stop35h 05mAir China
Deal found 29/4£416
Mon 22/922:10LHR - MNL
1 stop18h 05mChina Southern
Wed 19/1117:40MNL - LHR
1 stop32h 35mChina Southern
Deal found 28/4£417
Mon 27/1021:10LHR - BKK
1 stop38h 20mShenzhen Airlines
Sun 16/1103:05BKK - LHR
1 stop23h 05mShenzhen Airlines
Deal found 28/4£418
Tue 27/520:25LHR - MNL
1 stop20h 55mAir China
Mon 2/602:55MNL - LHR
1 stop24h 20mAir China
Deal found 29/4£419
Fri 17/1008:40LCY - BKK
1 stop18h 50mKLM
Tue 21/1012:05BKK - LCY
1 stop25h 10mKLM
Deal found 29/4£419

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 29 April 2025.
Use the filters below to find and compare flights to Southeast Asia that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Wed 11/6

21:20-01:20

1 stop21h 00m

Manila Ninoy Aquino Intl

Wed 18/6

03:55-18:40

1 stop21h 45m

£410

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 13/6

22:00-18:15

2 stops38h 15m

Bangkok Suvarnabhumi

Tue 24/6

11:05-19:30

1 stop38h 25m

£410

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sun 28/9

22:05-01:40

1 stop20h 35m

Manila Ninoy Aquino Intl

Fri 10/10

02:55-19:50

1 stop23h 55m

£411

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 2/6

18:05-18:05

1 stop18h 00m

Bangkok Suvarnabhumi

Sun 8/6

21:55-15:10

1 stop23h 15m

£411

LondonBangkok

STN - BKK

STNBKK

London Stansted

Fri 30/5

15:20-08:10

2 stops34h 50m

Bangkok Suvarnabhumi

Wed 11/6

21:55-23:55

3 stops32h 00m

£412

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 27/5

22:10-11:40

1 stop31h 30m

Bangkok Suvarnabhumi

Thu 19/6

03:00-19:00

1 stop22h 00m

£414

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Mon 22/9

22:10-23:15

1 stop18h 05m

Manila Ninoy Aquino Intl

Wed 19/11

17:40-18:15

1 stop32h 35m

£417

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 24/5

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Sun 8/6

19:30-19:50

1 stop30h 20m

£418

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Tue 27/5

20:25-00:20

1 stop20h 55m

Manila Ninoy Aquino Intl

Mon 2/6

02:55-20:15

1 stop24h 20m

£419

LondonBangkok

LCY - BKK

LCYBKK

London City

Fri 17/10

08:40-09:30

1 stop18h 50m

Bangkok Suvarnabhumi

Tue 21/10

12:05-07:15

1 stop25h 10m

£419

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 60 results
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 45 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 (7 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 Thai Airways, Singapore Airlines and Qatar Airways.

Thai Airways

Thai Airways

From £661

Singapore Airlines

Singapore Airlines

From £561

Qatar Airways

Qatar Airways

From £650

Air China

Air China

From £386

What are the cheapest airlines that fly to Southeast Asia?

The cheapest airlines flying from London to Southeast Asia are Air China, Turkmenistan Airlines 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).

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 29 April 2025.
Peruse reviews from past customers who have flown Hainan Airlines, Singapore Airlines and Air New Zealand 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.
Hainan Airlines
8.1
Very Good
38 reviews
Check prices

Boarding

8.6

Food

8.5

Comfort

8.1

Crew

9.0

Entertainment

7.7

Overall

8.1

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Hainan Airlines
8.1
Very Good
38 reviews
Hainan Airlines
8.1
Very Good
38 reviews
Check prices

Boarding

8.6

Food

8.5

Comfort

8.1

Crew

9.0

Entertainment

7.7

Overall

8.1

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Singapore Airlines
8.1
Very Good
1,292 reviews
Hainan Airlines
8.1
Very Good
38 reviews
Check prices

Boarding

8.6

Food

8.5

Comfort

8.1

Crew

9.0

Entertainment

7.7

Overall

8.1

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Air New Zealand
8.0
Very Good
471 reviews
Hainan Airlines
8.1
Very Good
38 reviews
Check prices

Boarding

8.6

Food

8.5

Comfort

8.1

Crew

9.0

Entertainment

7.7

Overall

8.1

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Emirates
8.0
Very Good
3,213 reviews
Hainan Airlines
8.1
Very Good
38 reviews
Check prices

Boarding

8.6

Food

8.5

Comfort

8.1

Crew

9.0

Entertainment

7.7

Overall

8.1

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.

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 £53, however they can be found for as little as £10.

  • 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
Business Class
Prem Econ Class
Economy 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.

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.
Site
©2025 Cheapflights