What is the cheapest airline that flies from Southampton Eastleigh to London?

Aer Lingus is the most popular carrier operating from Southampton Eastleigh to London

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.

£129 Cheap Flights from Southampton to London in 2026/27

Find the cheapest flights from Southampton to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

09:20 - 21:05SOU Southampton Eastleigh-LHR London Heathrow

11h 45m1 stop Dublin

14:15 - 19:30LHR London Heathrow-SOU Southampton Eastleigh

5h 15m1 stop Dublin

£215Aer Lingus

Wed, 4 Nov - Wed, 11 Nov

17:20 - 07:40SOU Southampton Eastleigh-LHR London Heathrow

14h 20m1 stop Amsterdam Schiphol

17:50 - 08:55LHR London Heathrow-SOU Southampton Eastleigh

15h 05m1 stop Amsterdam Schiphol

£219KLM

Sat, 7 Nov - Fri, 13 Nov

17:20 - 20:50SOU Southampton Eastleigh-LHR London Heathrow

3h 30m1 stop Amsterdam Schiphol

06:30 - 16:50LHR London Heathrow-SOU Southampton Eastleigh

10h 20m1 stop Amsterdam Schiphol

£220KLM

Sat, 14 Nov - Sat, 21 Nov

20:00 - 08:05SOU Southampton Eastleigh-LHR London Heathrow

12h 05m1 stop Dublin

15:10 - 19:30LHR London Heathrow-SOU Southampton Eastleigh

4h 20m1 stop Dublin

£228Aer Lingus

Sat, 17 Oct - Sat, 24 Oct

09:30 - 19:15SOU Southampton Eastleigh-LHR London Heathrow

9h 45m1 stop Amsterdam Schiphol

11:15 - 16:50LHR London Heathrow-SOU Southampton Eastleigh

5h 35m1 stop Amsterdam Schiphol

£233KLM

Sun, 1 Nov - Sat, 7 Nov

20:00 - 08:05SOU Southampton Eastleigh-LHR London Heathrow

12h 05m1 stop Dublin

20:45 - 08:45LHR London Heathrow-SOU Southampton Eastleigh

12h 00m1 stop Dublin

£242Aer Lingus

Sun, 1 Nov - Sat, 7 Nov

09:30 - 19:15SOU Southampton Eastleigh-LHR London Heathrow

9h 45m1 stop Amsterdam Schiphol

11:15 - 16:50LHR London Heathrow-SOU Southampton Eastleigh

5h 35m1 stop Amsterdam Schiphol

£246KLM

Sun, 1 Nov - Sat, 7 Nov

09:30 - 19:15SOU Southampton Eastleigh-LHR London Heathrow

9h 45m1 stop Amsterdam Schiphol

11:15 - 16:50LHR London Heathrow-SOU Southampton Eastleigh

5h 35m1 stop Amsterdam Schiphol

£246KLM

Sun, 1 Nov - Sat, 7 Nov

09:15 - 15:00SOU Southampton Eastleigh-LHR London Heathrow

5h 45m1 stop Dublin

16:50 - 19:30LHR London Heathrow-SOU Southampton Eastleigh

26h 40m1 stop Dublin

£248Aer Lingus

Tue, 6 Oct - Fri, 9 Oct

08:20 - 19:50SOU Southampton Eastleigh-LHR London Heathrow

11h 30m2 stops Glasgow Intl Dublin

15:10 - 19:30LHR London Heathrow-SOU Southampton Eastleigh

4h 20m1 stop Dublin

£252Multiple Airlines

Sat, 7 Nov - Fri, 13 Nov

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Aer Lingus flights from Southampton to London

Our best Aer Lingus deals on Southampton to London flight tickets

Aer Lingus

4 Nov

SOU09:20Southampton Eastleigh

11h 45m

1 stop

LHR21:05London Heathrow

11 Nov

LHR14:15London Heathrow

5h 15m

1 stop

SOU19:30Southampton Eastleigh

£215

Aer Lingus

17 Oct

SOU20:00Southampton Eastleigh

12h 05m

1 stop

LHR08:05London Heathrow

24 Oct

LHR15:10London Heathrow

4h 20m

1 stop

SOU19:30Southampton Eastleigh

£228

Aer Lingus

1 Nov

SOU20:00Southampton Eastleigh

12h 05m

1 stop

LHR08:05London Heathrow

7 Nov

LHR20:45London Heathrow

12h 00m

1 stop

SOU08:45Southampton Eastleigh

£242

KLM flights from Southampton to London

Our best KLM deals on Southampton to London flight tickets

KLM

7 Nov

SOU17:20Southampton Eastleigh

14h 20m

1 stop

LHR07:40London Heathrow

13 Nov

LHR17:50London Heathrow

15h 05m

1 stop

SOU08:55Southampton Eastleigh

£219

KLM

14 Nov

SOU17:20Southampton Eastleigh

3h 30m

1 stop

LHR20:50London Heathrow

21 Nov

LHR06:30London Heathrow

10h 20m

1 stop

SOU16:50Southampton Eastleigh

£220

KLM

1 Nov

SOU09:30Southampton Eastleigh

9h 45m

1 stop

LHR19:15London Heathrow

7 Nov

LHR11:15London Heathrow

5h 35m

1 stop

SOU16:50Southampton Eastleigh

£233

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Wed 4/11

09:20-21:05

1 stop11h 45m

London Heathrow

Wed 11/11

14:15-19:30

1 stop5h 15m

£215

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sat 7/11

17:20-07:40

1 stop14h 20m

London Heathrow

Fri 13/11

17:50-08:55

1 stop15h 05m

£219

Fastest return journey

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sat 14/11

17:20-20:50

1 stop3h 30m

London Heathrow

Sat 21/11

06:30-16:50

1 stop10h 20m

£220

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sat 17/10

20:00-08:05

1 stop12h 05m

London Heathrow

Sat 24/10

15:10-19:30

1 stop4h 20m

£228

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sun 1/11

09:30-19:15

1 stop9h 45m

London Heathrow

Sat 7/11

11:15-16:50

1 stop5h 35m

£233

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sun 1/11

20:00-08:05

1 stop12h 05m

London Heathrow

Sat 7/11

20:45-08:45

1 stop12h 00m

£242

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sun 1/11

09:30-19:15

1 stop9h 45m

London Heathrow

Sat 7/11

11:15-16:50

1 stop5h 35m

£246

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sun 1/11

09:30-19:15

1 stop9h 45m

London Heathrow

Sat 7/11

11:15-16:50

1 stop5h 35m

£246

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Tue 6/10

09:15-15:00

1 stop5h 45m

London Heathrow

Fri 9/10

16:50-19:30

1 stop26h 40m

£248

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sat 7/11

08:20-19:50

2 stops11h 30m

London Heathrow

Fri 13/11

15:10-19:30

1 stop4h 20m

£252

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 £658. Flights in the afternoon are often more expensive, with an average ticket price of £1,261.

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

Best price found	£129
Fastest flight time	3h 15m
Direct flights	None

The best one-way flight to London from Southampton in the past 72 hours is £129. The best return flight deal from Southampton to London found on momondo in the last 72 hours is £215.

The fastest flight from Southampton to London takes 3h 15m

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. 3h 15m 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.

Eastbourne

Wembley

Gatwick

Milton Keynes

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Bedford

Guildford

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

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Cheap flights from Southampton to London from £129

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 16/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Southampton to London

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Big names, great deals

Filter for what you want

Filter for what you want

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Aer Lingus flights from Southampton to London

Our best Aer Lingus deals on Southampton to London flight tickets

KLM flights from Southampton to London

Our best KLM deals on Southampton to London flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Southampton to London that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Southampton to London

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

What is the cheapest airline that flies from Southampton Eastleigh to London?

When to book flights from Southampton to London

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

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from Southampton to London

Travelling to a place near London?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Southampton

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year