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Cheap flights from Southampton to London from £43

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.
SOU — LON
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to London

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to London
Explore the most affordable flight options available from Southampton to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 March 2026.

Mon 20/420:40
SOU
-
STN
1 stop10h 40m
Multiple Airlines
Mon 27/416:15
STN
-
SOU
1 stop25h 00m
Multiple Airlines
Deal found 18/3£121
Mon 11/519:20
SOU
-
STN
1 stop15h 15m
Multiple Airlines
Mon 1/622:25
STN
-
SOU
1 stop14h 25m
Multiple Airlines
Deal found 20/3£129
Thu 23/409:25
SOU
-
STN
1 stop7h 00m
Multiple Airlines
Wed 29/415:55
STN
-
SOU
1 stop16h 50m
Multiple Airlines
Deal found 18/3£135
Mon 20/419:20
SOU
-
LTN
1 stop15h 40m
Multiple Airlines
Mon 27/409:05
LTN
-
SOU
1 stop11h 00m
Multiple Airlines
Deal found 18/3£137
Mon 20/420:40
SOU
-
LGW
1 stop11h 55m
Multiple Airlines
Mon 27/407:35
LGW
-
SOU
1 stop12h 30m
Multiple Airlines
Deal found 18/3£142
Mon 11/519:20
SOU
-
LGW
1 stop13h 10m
Multiple Airlines
Mon 1/621:45
LGW
-
SOU
1 stop15h 05m
Multiple Airlines
Deal found 20/3£142
Sun 3/512:35
SOU
-
LTN
1 stop10h 45m
easyJet
Sun 10/520:15
LTN
-
SOU
1 stop15h 35m
easyJet
Deal found 19/3£143
Fri 17/408:00
SOU
-
STN
1 stop10h 00m
Multiple Airlines
Thu 23/421:55
STN
-
SOU
1 stop10h 50m
Multiple Airlines
Deal found 18/3£145
Tue 14/418:10
SOU
-
LTN
1 stop15h 25m
Multiple Airlines
Tue 21/413:10
LTN
-
SOU
1 stop6h 20m
Multiple Airlines
Deal found 17/3£151
Fri 1/509:25
SOU
-
STN
1 stop11h 35m
Multiple Airlines
Fri 8/519:15
STN
-
SOU
1 stop12h 05m
Multiple Airlines
Deal found 17/3£151
Sun 3/512:35
SOU
-
LGW
1 stop10h 00m
easyJet
Sun 10/521:15
LGW
-
SOU
1 stop14h 35m
easyJet
Deal found 19/3£154
Thu 16/409:05
SOU
-
LTN
1 stop14h 10m
Multiple Airlines
Thu 23/417:30
LTN
-
SOU
1 stop15h 15m
Multiple Airlines
Deal found 19/3£156

Find flight deals from Southampton to London

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 March 2026.

Round-trip from

£121

One-way from

£43
20/4-27/4
  • 20/4-27/4
  • 2 total stops
  • 35h 40m total
  • Southampton to London
Search Deals
21/4
  • 21/4
  • 1 total stop
  • 20h 00m total
  • Southampton to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to London 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 22 March 2026.
Use the filters below to find and compare flights from Southampton to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Mon 20/4

20:40-07:20

1 stop10h 40m

London Stansted

Mon 27/4

16:15-17:15

1 stop25h 00m

£121

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Mon 11/5

19:20-10:35

1 stop15h 15m

London Stansted

Mon 1/6

22:25-12:50

1 stop14h 25m

£129

SouthamptonLondon

SOU - LGW

SOULGW

Southampton Eastleigh

Mon 20/4

20:40-08:35

1 stop11h 55m

London Gatwick

Mon 27/4

07:35-20:05

1 stop12h 30m

£142

SouthamptonLondon

SOU - LGW

SOULGW

Southampton Eastleigh

Mon 11/5

19:20-08:30

1 stop13h 10m

London Gatwick

Mon 1/6

21:45-12:50

1 stop15h 05m

£142

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Sun 3/5

12:35-23:20

1 stop10h 45m

London Luton

Sun 10/5

20:15-11:50

1 stop15h 35m

£143

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Fri 17/4

08:00-18:00

1 stop10h 00m

London Stansted

Thu 23/4

21:55-08:45

1 stop10h 50m

£145

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Mon 20/4

20:40-14:20

2 stops17h 40m

London Luton

Mon 27/4

09:05-20:05

1 stop11h 00m

£155

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Thu 16/4

12:35-22:10

1 stop9h 35m

London Luton

Sat 18/4

19:30-07:55

1 stop12h 25m

£159

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Mon 11/5

19:20-11:00

1 stop15h 40m

London Luton

Mon 1/6

08:00-19:00

1 stop11h 00m

£159

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Sun 3/5

12:35-21:35

1 stop9h 00m

London Stansted

Sun 10/5

22:10-11:50

1 stop13h 40m

£162

Flights are sorted by cheapest return flights first.

Deals found on 20/3

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

Have a flexible travel schedule? Discover the best time to fly to London 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 London

What is the cheapest time of day to fly from SOU to LON?

Find hourly flight availability from Southampton to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 March 2026.

A simple way to save on the total cost of your ticket is to fly from Southampton to London in the morning. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight in the evening.

What’s the top stopover airport for flights from Southampton to London?

Share of one-stop return flights from Southampton to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Saint Peter Port (GCI) – chosen by Cheapflights users on 33% of one-stop itineraries from Southampton to London on Cheapflights.

What’s the cheapest stopover airport for flights from Southampton to London?

Average return fare for one-stop flights from Southampton to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £352.

What’s the fastest stopover option from Southampton to London?

Shortest average travel time for one-stop one-way flights from Southampton to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Saint Peter Port (GCI) have the shortest average one-way travel time for one-stop routes: 3h 28m.

Which airport typically offers the quickest stopover for flights from Southampton to London?

Average stopover duration for one-stop one-way flights from Southampton to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Belfast (BHD) offer the fastest connection on this route, with an average stopover time of 1h 10m.

Related info for your journey

Find useful and relevant information for your journey from Southampton to London. 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 London?

    Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Southampton to London. 0 airlines have flights from Eastleigh to London on a regular basis. Booking flights from Southampton Eastleigh to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

  • How long is the flight from Southampton to London?

    easyJet and KLM can get you from Southampton to London in just under 3h 35m. Your travel time can differ by up to 7h 10m. There are 53 mi between Southampton and London. 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 London?

    When deciding which route to take from Southampton to London consider Southampton Eastleigh - London Gatwick, Southampton Eastleigh - London City or Southampton Eastleigh - London Heathrow as they are the most popular.

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

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

  • How can I find direct flights from Southampton to London?

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

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

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

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Romford
Ipswich
Bedford
Chelmsford
Southend-on-Sea

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Southampton to London

See prices for flight routes from nearby airports that may be better suited for you.
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London City to Manchester flights
Stansted to Manchester flights
Heathrow to Newquay flights
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Luton to Newcastle upon Tyne flights
Stansted to Newcastle upon Tyne flights
London City to Newcastle upon Tyne flights
Heathrow to Gatwick flights
Newcastle upon Tyne to Southampton flights
Gatwick to Newquay flights
Southampton to Manchester flights
Southend to Manchester flights
London City to Newquay flights
Edinburgh to Southampton flights
Luton to Newquay flights
Exeter to Edinburgh flights
Edinburgh to Bristol flights
Southampton to Newcastle upon Tyne flights
Edinburgh to Manchester flights
Bristol to Newcastle upon Tyne flights
Newcastle upon Tyne to London City flights
Birmingham to Gatwick flights
Stansted to Newquay flights
Stansted to Liverpool flights
Birmingham to Heathrow flights
Luton to Liverpool 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 London?

Cheapflights helps you search for flights from Southampton to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to London 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 London with no change fees?

Certainly. Search results for flights to London from Southampton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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