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Cheap flights from Southampton to Southeast Asia from £369

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — BKK
11 Apr — 18 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Southeast Asia
Explore the most affordable flight options available from Southampton to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 March 2026.

Tue 8/917:20
SOU
-
BKK
1 stop34h 10m
KLM
Mon 5/1012:05
BKK
-
SOU
1 stop26h 30m
KLM
Deal found 12/3£559
Sat 25/420:00
SOU
-
HKT
2 stops45h 55m
Multiple Airlines
Sat 2/509:25
HKT
-
SOU
2 stops29h 10m
Multiple Airlines
Deal found 11/3£618
Sat 18/420:00
SOU
-
BKK
2 stops45h 50m
Multiple Airlines
Sun 26/415:05
BKK
-
SOU
2 stops34h 25m
Multiple Airlines
Deal found 11/3£627
Sat 25/417:20
SOU
-
KUL
2 stops19h 25m
Multiple Airlines
Sat 2/509:50
KUL
-
SOU
2 stops29h 45m
Multiple Airlines
Deal found 11/3£647
Sun 26/409:20
SOU
-
BKK
2 stops39h 25m
Multiple Airlines
Sun 3/515:55
BKK
-
SOU
2 stops46h 45m
Multiple Airlines
Deal found 12/3£651
Fri 24/417:20
SOU
-
BKK
2 stops24h 30m
Multiple Airlines
Thu 30/403:15
BKK
-
SOU
2 stops46h 15m
Multiple Airlines
Deal found 10/3£655
Wed 22/420:00
SOU
-
KUL
2 stops40h 45m
Multiple Airlines
Wed 29/409:50
KUL
-
SOU
2 stops29h 50m
Multiple Airlines
Deal found 7/3£658
Mon 20/420:00
SOU
-
BKK
2 stops28h 15m
Multiple Airlines
Mon 27/409:15
BKK
-
SOU
2 stops29h 25m
Multiple Airlines
Deal found 7/3£658
Wed 22/409:20
SOU
-
SIN
2 stops25h 35m
Multiple Airlines
Wed 29/411:20
SIN
-
SOU
2 stops28h 20m
Multiple Airlines
Deal found 8/3£665
Sat 25/417:20
SOU
-
CGK
2 stops21h 15m
Multiple Airlines
Sat 2/518:10
CGK
-
SOU
2 stops31h 20m
Multiple Airlines
Deal found 11/3£671
Fri 24/417:20
SOU
-
KUL
2 stops19h 25m
Multiple Airlines
Fri 1/521:55
KUL
-
SOU
2 stops28h 35m
Multiple Airlines
Deal found 10/3£673
Fri 1/520:00
SOU
-
KUL
2 stops40h 45m
Multiple Airlines
Fri 22/509:50
KUL
-
SOU
2 stops40h 40m
Multiple Airlines
Deal found 10/3£675

Find flight deals from Southampton to Southeast Asia

Keep the following information in mind while searching for Southampton to Southeast Asia flight deals. Data was last updated 12 March 2026.

Round-trip from

£559

One-way from

£369

Popular in

July

Cheapest in

May

Average price

£625
KLM
  • KLM
  • 8/9-5/10
  • 2 total stops
  • 60h 40m total
  • Southampton to Southeast Asia
Search Deals
15/5
  • 15/5
  • 2 total stops
  • 27h 20m total
  • Southampton to Southeast Asia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 March 2026.
Use the filters below to find and compare flights from Southampton to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 8/9

17:20-09:30

1 stop34h 10m

Bangkok Suvarnabhumi

Mon 5/10

12:05-16:50

1 stop34h 45m

£572

SouthamptonKuala Lumpur

SOU - KUL

SOUKUL

Southampton Eastleigh

Wed 22/4

20:00-19:45

2 stops40h 45m

Kuala Lumpur Intl

Wed 29/4

09:50-08:40

2 stops29h 50m

£658

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Mon 20/4

20:00-06:15

2 stops28h 15m

Bangkok Suvarnabhumi

Mon 27/4

09:15-08:40

2 stops29h 25m

£658

SouthamptonJakarta

SOU - CGK

SOUCGK

Southampton Eastleigh

Sat 25/4

17:20-20:35

2 stops21h 15m

Jakarta Soekarno-Hatta Intl

Sat 2/5

18:10-19:30

2 stops31h 20m

£671

SouthamptonKuala Lumpur

SOU - KUL

SOUKUL

Southampton Eastleigh

Fri 1/5

20:00-19:45

2 stops40h 45m

Kuala Lumpur Intl

Fri 22/5

09:50-19:30

2 stops40h 40m

£675

SouthamptonJakarta

SOU - CGK

SOUCGK

Southampton Eastleigh

Thu 9/4

17:20-20:35

2 stops21h 15m

Jakarta Soekarno-Hatta Intl

Thu 16/4

18:10-19:30

2 stops31h 20m

£677

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Thu 23/4

09:20-06:40

2 stops39h 20m

Hanoi Noibai

Thu 30/4

20:40-08:40

2 stops42h 00m

£694

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Sun 26/4

20:00-09:40

2 stops30h 40m

Singapore Changi

Sun 3/5

21:00-08:40

2 stops42h 40m

£728

SouthamptonKuala Lumpur

SOU - KUL

SOUKUL

Southampton Eastleigh

Fri 24/4

17:20-06:20

3 stops30h 00m

Kuala Lumpur Intl

Fri 1/5

21:55-19:30

2 stops28h 35m

£807

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Wed 8/4

06:50-21:15

3 stops31h 25m

Singapore Changi

Wed 15/4

19:40-16:50

2 stops28h 10m

£825

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Southampton to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Southampton 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 from Southampton to Southeast Asia

What is the cheapest month to book a flight from Southampton to Southeast Asia?

Currently, November is the cheapest month in which you can book a flight from Southampton to Southeast Asia (average of £303). Flying from Southampton to Southeast Asia in July is currently the most expensive (average of £411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Southampton to Southeast Asia?

    For a flight from Southampton to Southeast Asia, you will be flying from Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city.

  • How long is the flight from Southampton to Southeast Asia?

    KLM and Qatar Airways can get you from Southampton to Southeast Asia in just under 28h 55m. Your travel time can differ by up to 5h 15m. The distance between Southampton and Southeast Asia is about 6631 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Southampton to Southeast Asia?

    Most travelers choose Southampton Eastleigh - Bangkok Suvarnabhumi, Southampton Eastleigh - Kuala Lumpur Intl or Southampton Eastleigh - Manila Ninoy Aquino Intl when deciding on the best route from Southampton to Southeast Asia.

  • Can I find deals for flights from Southampton to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Southampton to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Southampton to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Southeast Asia.

  • Can I find deals for business class flights from Southampton to Southeast Asia?

    Yes. Cheapflights offers flight deals from Southampton to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Southampton to Southeast Asia?

    Currently, November is the cheapest month in which you can book a flight from Southampton to Southeast Asia (average of £303). Flying from Southampton to Southeast Asia in July is currently the most expensive (average of £411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Southampton to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
Gatwick to Suvarnabhumi flights
Heathrow to Haneda flights
Stansted to Suvarnabhumi flights
London City to Suvarnabhumi flights
Heathrow to Narita flights
Heathrow to Kuala Lumpur Intl flights
Heathrow to Hong Kong flights
Gatwick to Haneda flights
Gatwick to Narita flights
Stansted to Narita flights
Heathrow to New Delhi flights
Heathrow to Colombo flights
Luton to Suvarnabhumi flights
Heathrow to Mumbai flights
Manchester to Suvarnabhumi flights
Heathrow to Manila flights
London City to Haneda flights
Stansted to Haneda flights
Heathrow to Don Mueang Intl flights
London City to Narita flights
Heathrow to Incheon Intl flights
Heathrow to Hongqiao Intl flights
Manchester to Islamabad flights
Gatwick to Kuala Lumpur Intl flights
Heathrow to Singapore flights
Heathrow to Islamabad flights
Gatwick to Manila flights
Heathrow to Denpasar flights
Stansted to Manila flights
Stansted to Kuala Lumpur Intl flights
Gatwick to Singapore flights
Heathrow to Hanoi flights
London City to Kuala Lumpur Intl flights
Gatwick to Colombo flights
Heathrow to Taiwan Taoyuan Intl flights
Heathrow to Hyderabad flights
Heathrow to Lahore flights
Gatwick to Denpasar flights
Stansted to Colombo flights
Heathrow to Gimpo Intl flights
London City to Manila flights
Heathrow to Pu Dong flights
Stansted to Denpasar flights
London City to Denpasar flights
Stansted to Hong Kong flights
Gatwick to Islamabad flights
Heathrow to Bangalore flights
Heathrow to Phuket City flights
Stansted to New Delhi flights

Top airline flying from Southampton to Southeast Asia

Discover the top airline that operate flights from Southampton to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 March 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£563Average£974FlexibilityNo cancel feeOn-time75%
Search KLM flights

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 from Southampton to Southeast Asia?

Cheapflights makes it easy to find Southampton to Southeast Asia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Southeast Asia?

Cheapflights helps you find that perfect flight to Southeast Asia from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Southampton to Southeast Asia with no change fees?

Yes! Cheapflights helps users easily find flights from Southampton to Southeast Asia with no change fees.

Can Cheapflights notify me if prices for flights from Southampton to Southeast Asia become cheaper?

Yes! Start tracking prices for Southampton to Southeast Asia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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