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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 20/4. 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
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:35 - 22:10
SOU
-
LTN
9h 35m
1 stop
Multiple Airlines Logo
17:30 - 08:45
LTN
-
SOU
15h 15m
1 stop
£115Multiple Airlines
Thu, 30 Apr - Thu, 7 May
Multiple Airlines Logo
20:40 - 07:20
SOU
-
STN
10h 40m
1 stop
Multiple Airlines Logo
19:15 - 07:20
STN
-
SOU
12h 05m
1 stop
£120Multiple Airlines
Mon, 4 May - Fri, 5 Jun
easyJet Logo
20:40 - 08:45
SOU
-
LTN
12h 05m
1 stop
easyJet Logo
08:40 - 12:05
LTN
-
SOU
3h 25m
1 stop
£144easyJet
Mon, 20 Apr - Sun, 26 Apr
easyJet Logo
20:40 - 08:35
SOU
-
LGW
11h 55m
1 stop
easyJet Logo
07:55 - 12:05
LGW
-
SOU
4h 10m
1 stop
£147easyJet
Mon, 20 Apr - Sun, 26 Apr
Aer Lingus Logo
09:20 - 17:20
SOU
-
LHR
8h 00m
1 stop
Aer Lingus Logo
20:10 - 08:35
LHR
-
SOU
12h 25m
1 stop
£234Aer Lingus
Sat, 16 May - Sat, 23 May
Aer Lingus Logo
09:20 - 15:00
SOU
-
LHR
5h 40m
1 stop
Aer Lingus Logo
15:10 - 19:30
LHR
-
SOU
4h 20m
1 stop
£255Aer Lingus
Wed, 13 May - Wed, 20 May
KLM Logo
09:05 - 17:20
SOU
-
LCY
8h 15m
1 stop
KLM Logo
10:00 - 16:50
LCY
-
SOU
6h 50m
1 stop
£305KLM
Wed, 13 May - Wed, 20 May
KLM Logo
09:05 - 13:50
SOU
-
LHR
4h 45m
1 stop
KLM Logo
20:55 - 08:45
LHR
-
SOU
11h 50m
1 stop
£320KLM
Mon, 4 May - Fri, 5 Jun
Aurigny Air Logo
08:00 - 18:50
SOU
-
LCY
10h 50m
1 stop
Aurigny Air Logo
08:30 - 14:45
LCY
-
SOU
6h 15m
1 stop
£336Aurigny Air
Wed, 29 Apr - Wed, 6 May
Aurigny Air Logo
08:00 - 14:45
SOU
-
LCY
6h 45m
1 stop
Aurigny Air Logo
15:15 - 19:25
LCY
-
SOU
4h 10m
1 stop
£365Aurigny Air
Thu, 30 Apr - Thu, 7 May

Aer Lingus flights from Southampton to London

Our best Aer Lingus deals on Southampton to London flight tickets
Aer Lingus
16 May
SOU09:20Southampton Eastleigh
8h 00m
1 stop
LHR17:20London Heathrow
23 May
LHR20:10London Heathrow
12h 25m
1 stop
SOU08:35Southampton Eastleigh
£234
Aer Lingus
13 May
SOU09:20Southampton Eastleigh
5h 40m
1 stop
LHR15:00London Heathrow
20 May
LHR15:10London Heathrow
4h 20m
1 stop
SOU19:30Southampton Eastleigh
£255
Aer Lingus
20 Apr
SOU20:00Southampton Eastleigh
14h 20m
1 stop
LHR10:20London Heathrow
26 Apr
LHR22:00London Heathrow
10h 40m
1 stop
SOU08:40Southampton Eastleigh
£267

KLM flights from Southampton to London

Our best KLM deals on Southampton to London flight tickets
KLM
13 May
SOU09:05Southampton Eastleigh
8h 15m
1 stop
LCY17:20London City
20 May
LCY10:00London City
6h 50m
1 stop
SOU16:50Southampton Eastleigh
£305
KLM
4 May
SOU09:05Southampton Eastleigh
4h 45m
1 stop
LHR13:50London Heathrow
5 Jun
LHR20:55London Heathrow
11h 50m
1 stop
SOU08:45Southampton Eastleigh
£320
KLM
28 Apr
SOU09:05Southampton Eastleigh
10h 40m
1 stop
LCY19:45London City
5 May
LCY20:15London City
12h 20m
1 stop
SOU08:35Southampton Eastleigh
£324

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 3 April 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 - LTN

SOULTN

Southampton Eastleigh

Thu 30/4

12:35-22:10

1 stop9h 35m

London Luton

Thu 7/5

17:30-08:45

1 stop15h 15m

£115

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Mon 4/5

20:40-07:20

1 stop10h 40m

London Stansted

Fri 5/6

19:15-07:20

1 stop12h 05m

£120

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Mon 20/4

20:40-08:45

1 stop12h 05m

London Luton

Sun 26/4

08:40-12:05

1 stop3h 25m

£144

SouthamptonLondon

SOU - LGW

SOULGW

Southampton Eastleigh

Mon 20/4

20:40-08:35

1 stop11h 55m

London Gatwick

Sun 26/4

07:55-12:05

1 stop4h 10m

£147

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Sat 16/5

09:20-17:20

1 stop8h 00m

London Heathrow

Sat 23/5

20:10-08:35

1 stop12h 25m

£234
Fastest return journey

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Wed 13/5

09:20-15:00

1 stop5h 40m

London Heathrow

Wed 20/5

15:10-19:30

1 stop4h 20m

£255

SouthamptonLondon

SOU - LCY

SOULCY

Southampton Eastleigh

Wed 13/5

09:05-17:20

1 stop8h 15m

London City

Wed 20/5

10:00-16:50

1 stop6h 50m

£305

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 4/5

09:05-13:50

1 stop4h 45m

London Heathrow

Fri 5/6

20:55-08:45

1 stop11h 50m

£320

SouthamptonLondon

SOU - LCY

SOULCY

Southampton Eastleigh

Wed 29/4

08:00-18:50

1 stop10h 50m

London City

Wed 6/5

08:30-14:45

1 stop6h 15m

£336

SouthamptonLondon

SOU - LCY

SOULCY

Southampton Eastleigh

Thu 30/4

08:00-14:45

1 stop6h 45m

London City

Thu 7/5

15:15-19:25

1 stop4h 10m

£365

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 day to depart on your flight to London?

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £793. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Southampton to London for around £1,204.

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 evening when flights can be purchased for as low as £927. Flights in the morning are often more expensive, with an average ticket price of £1,082.

What is the cheapest Southampton Eastleigh to London flight route?

Fly from Southampton Eastleigh to London Heathrow for the best Southampton Eastleigh - London flight prices

What cabin class options are available on Southampton Eastleigh to London flights?

There are 2 cabin classes available to choose from on Southampton Eastleigh to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

3h 35m

Direct flights

None
The fastest flight from Southampton to London takes 3h 35m
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

  • Is flying the fastest way to get from Southampton to London?

    We’ve found that taking a train from Southampton to London with AccesRail is more time-efficient when based simply on travel duration. A flight from Southampton to London or a bus from Southampton to London can take you longer than a 1h 50m train.

  • Is flying the cheapest way to get from Southampton to London?

    A bus from Southampton to London from £20 can save you up to 82% on the cost of your trip compared to booking a flight from Southampton to London or a train 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. 3h 35m 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.

  • What is the most popular plane model from Southampton to London?

Travelling to a place near London?

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

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.

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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