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Cheap flights from London Heathrow Airport to London from £108

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to London departing on 24/1. 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
0 bags
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Find the cheapest flights from London Heathrow Airport to London

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
15:10 - 19:40
LHR
-
SOU
4h 30m1 stop
Aer Lingus Logo
20:10 - 08:05
SOU
-
LHR
11h 55m1 stop
£240Aer Lingus
gio, 8 gen - lun, 12 gen
Aer Lingus Logo
20:45 - 08:45
LHR
-
SOU
12h 00m1 stop
Aer Lingus Logo
20:10 - 10:10
SOU
-
LHR
14h 00m1 stop
£262Aer Lingus
mer, 14 gen - gio, 15 gen
KLM Logo
14:05 - 08:50
LHR
-
SOU
18h 45m1 stop
KLM Logo
17:45 - 10:45
SOU
-
LHR
17h 00m1 stop
£274KLM
dom, 25 gen - dom, 1 feb
British Airways Logo
06:50 - 17:30
LHR
-
SOU
10h 40m1 stop
British Airways Logo
12:00 - 17:30
SOU
-
LHR
5h 30m1 stop
£288British Airways
gio, 8 gen - lun, 12 gen
Multiple Airlines Logo
20:25 - 07:40
LHR
-
SOU
11h 15m1 stop
Multiple Airlines Logo
14:35 - 20:50
SOU
-
LHR
6h 15m1 stop
£304Multiple Airlines
gio, 25 dic - lun, 29 dic
British Airways Logo
07:10 - 19:20
LHR
-
SOU
12h 10m1 stop
British Airways Logo
09:45 - 16:20
SOU
-
LHR
6h 35m1 stop
£308British Airways
ven, 2 gen - sab, 3 gen
Multiple Airlines Logo
07:00 - 14:45
LHR
-
SOU
7h 45m1 stop
Multiple Airlines Logo
15:25 - 22:55
SOU
-
LHR
7h 30m2 stops
£313Multiple Airlines
dom, 25 gen - dom, 1 feb
British Airways Logo
07:40 - 11:45
LHR
-
SOU
4h 05m1 stop
British Airways Logo
15:00 - 20:25
SOU
-
LHR
5h 25m1 stop
£320British Airways
mar, 3 feb - mar, 3 feb
British Airways Logo
12:30 - 18:30
LHR
-
SOU
6h 00m1 stop
British Airways Logo
18:05 - 21:30
SOU
-
LHR
3h 25m1 stop
£354British Airways
lun, 2 feb - lun, 16 feb
Multiple Airlines Logo
15:10 - 19:40
LHR
-
SOU
4h 30m1 stop
Multiple Airlines Logo
12:00 - 19:50
SOU
-
LHR
7h 50m2 stops
£433Multiple Airlines
gio, 8 gen - lun, 12 gen

KLM flights from London Heathrow Airport to Southampton

Our best KLM deals on London Heathrow Airport to Southampton flight tickets
KLM
25 Jan
LHR14:05London Heathrow
18h 45m
1 stop
SOU08:50Southampton Eastleigh
1 Feb
SOU17:45Southampton Eastleigh
17h 00m
1 stop
LHR10:45London Heathrow
£274
Find similar
KLM
27 Dec
LHR14:05London Heathrow
18h 45m
1 stop
SOU08:50Southampton Eastleigh
31 Dec
SOU17:30Southampton Eastleigh
14h 10m
1 stop
LHR07:40London Heathrow
£279
Find similar

British Airways flights from London Heathrow Airport to Southampton

Our best British Airways deals on London Heathrow Airport to Southampton flight tickets
British Airways
8 Jan
LHR06:50London Heathrow
10h 40m
1 stop
SOU17:30Southampton Eastleigh
12 Jan
SOU12:00Southampton Eastleigh
5h 30m
1 stop
LHR17:30London Heathrow
£288
Find similar
British Airways
8 Jan
LHR06:50London Heathrow
10h 40m
1 stop
SOU17:30Southampton Eastleigh
12 Jan
SOU12:00Southampton Eastleigh
5h 30m
1 stop
LHR17:30London Heathrow
£290
Find similar
British Airways
2 Jan
LHR07:10London Heathrow
12h 10m
1 stop
SOU19:20Southampton Eastleigh
3 Jan
SOU09:45Southampton Eastleigh
6h 35m
1 stop
LHR16:20London Heathrow
£308
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Southampton 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 12 dicembre 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

gio 8/1

15:10-19:40

1 stop4h 30m

Southampton Eastleigh

lun 12/1

20:10-08:05

1 stop11h 55m

£240

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

mer 14/1

20:45-08:45

1 stop12h 00m

Southampton Eastleigh

gio 15/1

20:10-10:10

1 stop14h 00m

£262

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

dom 25/1

14:05-08:50

1 stop18h 45m

Southampton Eastleigh

dom 1/2

17:45-10:45

1 stop17h 00m

£274

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

gio 8/1

06:50-17:30

1 stop10h 40m

Southampton Eastleigh

lun 12/1

12:00-17:30

1 stop5h 30m

£288

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

gio 25/12

20:25-07:40

1 stop11h 15m

Southampton Eastleigh

lun 29/12

14:35-20:50

1 stop6h 15m

£304

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

ven 2/1

07:10-19:20

1 stop12h 10m

Southampton Eastleigh

sab 3/1

09:45-16:20

1 stop6h 35m

£308

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

dom 25/1

07:00-14:45

1 stop7h 45m

Southampton Eastleigh

dom 1/2

15:25-22:55

2 stops7h 30m

£313

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

mar 3/2

07:40-11:45

1 stop4h 05m

Southampton Eastleigh

mar 3/2

15:00-20:25

1 stop5h 25m

£320

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

lun 2/2

12:30-18:30

1 stop6h 00m

Southampton Eastleigh

lun 16/2

18:05-21:30

1 stop3h 25m

£354

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

gio 8/1

15:10-19:40

1 stop4h 30m

Southampton Eastleigh

lun 12/1

12:00-19:50

2 stops7h 50m

£433

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London from

How to get the cheapest flight ticket from London Heathrow Airport to Southampton

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 Southampton?

Our data shows that Thursday is the least expensive day to fly to Southampton. Tickets to fly out on this day can be as low as £215. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around £358. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southampton.

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

According to our data, the cheapest time of day to fly to Southampton is at midday. momondo users have found flights departing from London Heathrow Airport to Southampton at midday for as low as £220. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £292 on average. Flights to Southampton from London Heathrow Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

When to book flights from London Heathrow Airport to Southampton

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

Cheap London Heathrow Airport to Southampton (LHR to SOU) flight deals and tips

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

Fastest flight time

7h 40m

Direct flights

None
The fastest flight from London Heathrow Airport to Southampton takes 7h 40m
There are no direct flights from London Heathrow Airport to Southampton. There are no popular flight routes from London Heathrow Airport to Southampton.
Search flight deals

  • How far is London Heathrow to Southampton Eastleigh by plane?

    London Heathrow and Southampton Eastleigh are 56.4 mi apart from one another. Flights usually cover this in 7h 40m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London Heathrow Airport to Southampton Eastleigh Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The travel and health documents required for your trip to Southampton Eastleigh Airport 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 Southampton Eastleigh Airport. 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
Portsmouth

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Southampton . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Southampton from London with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Southampton from London.

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

If you are simply researching potential flights to Southampton, momondo offers a useful price alert feature which will track prices for flights to Southampton from London and alert you when they change.

An easier way to manage your Southampton 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.
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dom 11/1
dom 18/1
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