Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Southampton to London from £48

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to London departing on 16/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Southampton to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:40 - 07:20
SOU
-
STN
10h 40m
1 stop
Multiple Airlines Logo
07:10 - 12:50
STN
-
SOU
5h 40m
1 stop
£109Multiple Airlines
Mon, 7 Sep - Tue, 22 Sep
Multiple Airlines Logo
19:20 - 11:00
SOU
-
LTN
15h 40m
1 stop
Multiple Airlines Logo
19:50 - 10:15
LTN
-
SOU
14h 25m
2 stops
£115Multiple Airlines
Mon, 7 Sep - Tue, 22 Sep
easyJet Logo
11:40 - 15:45
SOU
-
LTN
4h 05m
1 stop
easyJet Logo
19:20 - 08:35
LTN
-
SOU
13h 15m
1 stop
£130easyJet
Thu, 10 Sep - Wed, 16 Sep
Aer Lingus Logo
09:15 - 15:00
SOU
-
LHR
5h 45m
1 stop
Aer Lingus Logo
21:10 - 08:05
LHR
-
SOU
10h 55m
1 stop
£223Aer Lingus
Tue, 18 Aug - Tue, 25 Aug
Aer Lingus Logo
20:00 - 09:05
SOU
-
LHR
13h 05m
1 stop
Aer Lingus Logo
15:10 - 19:30
LHR
-
SOU
4h 20m
1 stop
£237Aer Lingus
Wed, 19 Aug - Wed, 26 Aug
KLM Logo
17:20 - 20:55
SOU
-
LHR
3h 35m
1 stop
KLM Logo
06:30 - 16:50
LHR
-
SOU
10h 20m
1 stop
£249KLM
Thu, 10 Sep - Wed, 16 Sep
KLM Logo
17:20 - 20:55
SOU
-
LHR
3h 35m
1 stop
KLM Logo
06:30 - 16:50
LHR
-
SOU
10h 20m
1 stop
£260KLM
Thu, 10 Sep - Wed, 16 Sep
easyJet Logo
12:35 - 07:20
SOU
-
SEN
18h 45m
2 stops
easyJet Logo
17:30 - 20:05
SEN
-
SOU
26h 35m
1 stop
£270easyJet
Sun, 13 Sep - Sun, 20 Sep
Aurigny Air Logo
08:00 - 18:50
SOU
-
LCY
10h 50m
1 stop
Aurigny Air Logo
08:30 - 19:25
LCY
-
SOU
10h 55m
1 stop
£302Aurigny Air
Thu, 10 Sep - Wed, 16 Sep
Aurigny Air Logo
19:55 - 08:00
SOU
-
LCY
12h 05m
1 stop
Aurigny Air Logo
19:20 - 07:30
LCY
-
SOU
12h 10m
1 stop
£306Aurigny Air
Wed, 19 Aug - Wed, 26 Aug

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

KLM flights from Southampton to London

Our best KLM deals on Southampton to London flight tickets
KLM
10 Sept
SOU17:20Southampton Eastleigh
3h 35m
1 stop
LHR20:55London Heathrow
16 Sept
LHR06:30London Heathrow
10h 20m
1 stop
SOU16:50Southampton Eastleigh
£249
KLM
10 Sept
SOU17:20Southampton Eastleigh
3h 35m
1 stop
LHR20:55London Heathrow
16 Sept
LHR06:30London Heathrow
10h 20m
1 stop
SOU16:50Southampton Eastleigh
£260
KLM
19 Aug
SOU09:15Southampton Eastleigh
11h 40m
1 stop
LHR20:55London Heathrow
26 Aug
LHR19:15London Heathrow
13h 30m
1 stop
SOU08:45Southampton Eastleigh
£261

Aer Lingus flights from Southampton to London

Our best Aer Lingus deals on Southampton to London flight tickets
Aer Lingus
18 Aug
SOU09:15Southampton Eastleigh
5h 45m
1 stop
LHR15:00London Heathrow
25 Aug
LHR21:10London Heathrow
10h 55m
1 stop
SOU08:05Southampton Eastleigh
£223
Aer Lingus
19 Aug
SOU20:00Southampton Eastleigh
13h 05m
1 stop
LHR09:05London Heathrow
26 Aug
LHR15:10London Heathrow
4h 20m
1 stop
SOU19:30Southampton Eastleigh
£237
Aer Lingus
16 Aug
SOU09:20Southampton Eastleigh
11h 35m
1 stop
LHR20:55London Heathrow
23 Aug
LHR22:00London Heathrow
10h 40m
1 stop
SOU08:40Southampton Eastleigh
£273

momondo 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, momondo users made 279,928 searches. Data last updated 23 July 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 7/9

20:40-07:20

1 stop10h 40m

London Stansted

Tue 22/9

07:10-12:50

1 stop5h 40m

£109

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Mon 7/9

19:20-11:00

1 stop15h 40m

London Luton

Tue 22/9

19:50-10:15

2 stops14h 25m

£115

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Thu 10/9

11:40-15:45

1 stop4h 05m

London Luton

Wed 16/9

19:20-08:35

1 stop13h 15m

£130

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 18/8

09:15-15:00

1 stop5h 45m

London Heathrow

Tue 25/8

21:10-08:05

1 stop10h 55m

£223

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Wed 19/8

20:00-09:05

1 stop13h 05m

London Heathrow

Wed 26/8

15:10-19:30

1 stop4h 20m

£237
Fastest return journey

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Thu 10/9

17:20-20:55

1 stop3h 35m

London Heathrow

Wed 16/9

06:30-16:50

1 stop10h 20m

£249

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Thu 10/9

17:20-20:55

1 stop3h 35m

London Heathrow

Wed 16/9

06:30-16:50

1 stop10h 20m

£260

SouthamptonLondon

SOU - SEN

SOUSEN

Southampton Eastleigh

Sun 13/9

12:35-07:20

2 stops18h 45m

London Southend

Sun 20/9

17:30-20:05

1 stop26h 35m

£270

SouthamptonLondon

SOU - LCY

SOULCY

Southampton Eastleigh

Thu 10/9

08:00-18:50

1 stop10h 50m

London City

Wed 16/9

08:30-19:25

1 stop10h 55m

£302

SouthamptonLondon

SOU - LCY

SOULCY

Southampton Eastleigh

Wed 19/8

19:55-08:00

1 stop12h 05m

London City

Wed 26/8

19:20-07:30

1 stop12h 10m

£306

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Southampton to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £870. Flights in the evening are often more expensive, with an average ticket price of £1,712.

When to book flights from Southampton to London

Are you open to changing your travel dates? Check out the ideal times to fly from Southampton to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Southampton to London (SOU to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to London

Fastest flight time

4h 05m

Direct flights

None
The fastest flight from Southampton to London takes 4h 05m
There are no direct flights from Southampton to London. There are no popular flight routes from Southampton to London.
Search flight deals

Frequently asked questions about flying from Southampton to London

  • How far is Southampton Eastleigh to London by plane?

    A flight from Southampton Eastleigh to London will travel around 68.6 mi. 4h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Southampton Eastleigh Airport to London?

    Prices for flights from Southampton Eastleigh Airport to London were last updated today.

  • How old do you have to be to fly from Southampton Eastleigh Airport to London?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Southampton Eastleigh Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Wembley
Gatwick
Milton Keynes
Luton
Southend-on-Sea
Slough
Ipswich
Maidstone
Folkestone
Ilford
Hastings
Canterbury
Guildford
Chichester
Hayes
Bedford
Colchester
Harlow
Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to London?

It is quick and easy to find Southampton to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Southampton to London with flexible booking policies on momondo?

Flights from Southampton to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Southampton to London?

Once you have performed a search for Southampton to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Southampton to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Southampton to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 22/8
Sat 29/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport