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Cheap flights from Southampton to London from £189

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to London departing on 6/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:50 - 20:05
SOU
-
LHR
24h 15m1 stop
Multiple Airlines Logo
15:30 - 19:20
LHR
-
SOU
27h 50m2 stops
£189Multiple Airlines
Fri, 6 Feb - Thu, 12 Feb
Multiple Airlines Logo
19:50 - 20:05
SOU
-
LHR
24h 15m1 stop
Multiple Airlines Logo
20:50 - 19:20
LHR
-
SOU
22h 30m1 stop
£205Multiple Airlines
Fri, 6 Feb - Thu, 12 Feb
KLM Logo
17:35 - 07:40
SOU
-
LHR
14h 05m1 stop
KLM Logo
20:25 - 08:50
LHR
-
SOU
12h 25m1 stop
£257KLM
Tue, 13 Jan - Tue, 20 Jan
KLM Logo
09:25 - 19:15
SOU
-
LHR
9h 50m1 stop
KLM Logo
20:25 - 08:50
LHR
-
SOU
12h 25m1 stop
£258KLM
Tue, 6 Jan - Mon, 12 Jan
Multiple Airlines Logo
10:20 - 18:05
SOU
-
LHR
7h 45m1 stop
Multiple Airlines Logo
08:40 - 19:20
LHR
-
SOU
10h 40m1 stop
£276Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
14:15 - 21:25
SOU
-
LHR
7h 10m1 stop
Multiple Airlines Logo
07:50 - 15:35
LHR
-
SOU
7h 45m1 stop
£284Multiple Airlines
Thu, 1 Jan - Mon, 5 Jan
British Airways Logo
12:00 - 19:50
SOU
-
LHR
7h 50m1 stop
British Airways Logo
07:45 - 17:30
LHR
-
SOU
9h 45m1 stop
£295British Airways
Mon, 26 Jan - Wed, 28 Jan
British Airways Logo
12:00 - 19:50
SOU
-
LHR
7h 50m1 stop
British Airways Logo
10:20 - 17:30
LHR
-
SOU
7h 10m1 stop
£295British Airways
Mon, 26 Jan - Wed, 28 Jan
British Airways Logo
12:00 - 21:05
SOU
-
LHR
9h 05m1 stop
British Airways Logo
07:00 - 17:30
LHR
-
SOU
10h 30m1 stop
£313British Airways
Mon, 26 Jan - Wed, 28 Jan
Multiple Airlines Logo
15:20 - 09:10
SOU
-
LHR
17h 50m2 stops
Multiple Airlines Logo
20:50 - 11:55
LHR
-
SOU
15h 05m2 stops
£435Multiple Airlines
Tue, 13 Jan - Tue, 20 Jan

British Airways flights from Southampton to London Heathrow Airport

Our best British Airways deals on Southampton to London Heathrow Airport flight tickets
British Airways
26 Jan
SOU12:00Southampton Eastleigh
7h 50m
1 stop
LHR19:50London Heathrow
28 Jan
LHR07:45London Heathrow
9h 45m
1 stop
SOU17:30Southampton Eastleigh
£295
Find similar
British Airways
26 Jan
SOU12:00Southampton Eastleigh
7h 50m
1 stop
LHR19:50London Heathrow
28 Jan
LHR10:20London Heathrow
7h 10m
1 stop
SOU17:30Southampton Eastleigh
£295
Find similar
British Airways
26 Jan
SOU12:00Southampton Eastleigh
9h 05m
1 stop
LHR21:05London Heathrow
28 Jan
LHR07:00London Heathrow
10h 30m
1 stop
SOU17:30Southampton Eastleigh
£313
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Southampton to London Heathrow Airport 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 18 December 2025.
Use the filters below to find and compare flights from Southampton to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Fri 6/2

19:50-20:05

1 stop24h 15m

London Heathrow

Thu 12/2

15:30-19:20

2 stops27h 50m

£189

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Fri 6/2

19:50-20:05

1 stop24h 15m

London Heathrow

Thu 12/2

20:50-19:20

1 stop22h 30m

£205

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 13/1

17:35-07:40

1 stop14h 05m

London Heathrow

Tue 20/1

20:25-08:50

1 stop12h 25m

£257

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 6/1

09:25-19:15

1 stop9h 50m

London Heathrow

Mon 12/1

20:25-08:50

1 stop12h 25m

£258

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Sat 31/1

10:20-18:05

1 stop7h 45m

London Heathrow

Sat 7/2

08:40-19:20

1 stop10h 40m

£276

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Thu 1/1

14:15-21:25

1 stop7h 10m

London Heathrow

Mon 5/1

07:50-15:35

1 stop7h 45m

£284

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 26/1

12:00-19:50

1 stop7h 50m

London Heathrow

Wed 28/1

07:45-17:30

1 stop9h 45m

£295

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 26/1

12:00-19:50

1 stop7h 50m

London Heathrow

Wed 28/1

10:20-17:30

1 stop7h 10m

£295

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 26/1

12:00-21:05

1 stop9h 05m

London Heathrow

Wed 28/1

07:00-17:30

1 stop10h 30m

£313

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 13/1

15:20-09:10

2 stops17h 50m

London Heathrow

Tue 20/1

20:50-11:55

2 stops15h 05m

£435

Flights are sorted by cheapest return flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

See travel insights to London from

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

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 Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Southampton is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £832. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £1,127.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Southampton to London Heathrow Airport in the evening for as low as £917. 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 £1,070 on average. Flights to London Heathrow Airport from Southampton in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Southampton Eastleigh to London Heathrow flight route?

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

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

There are 2 cabin classes available to choose from on Southampton Eastleigh to London Heathrow 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 Heathrow Airport

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

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

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

Fastest flight time

4h 10m

Direct flights

None
The fastest flight from Southampton to London Heathrow Airport takes 4h 10m
There are no direct flights from Southampton to London Heathrow Airport. There are no popular flight routes from Southampton to London Heathrow Airport.
Search flight deals

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

    The distance between Southampton Eastleigh and London Heathrow is about 56.4 mi. Flights usually cover this in 4h 10m, depending on flying conditions and air traffic around both airports.

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

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

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

    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 Heathrow Airport.

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

    The travel and health documents required for your trip to London Heathrow 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 London Heathrow Airport. 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 Heathrow Airport?

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
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Northampton
Swindon
Stratford-upon-Avon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Poole
Guildford
Swanage
Hayes
Chelmsford
Dover
Worthing

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Southampton to London. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to London from Southampton which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to London from Southampton. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to London from Southampton. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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