LHR - SOU

£99 Find Cheap Flights from London Heathrow Airport to Southampton – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return flight
£188
Typical prices: £333-£506
Aer Lingus
Wed 3/10Sat 13/10
LHR - SOU • 1 stop
Cheapest one-way flight
£99
Typical prices: £173-£536
Aer Lingus
Wed 10/10
LHR - SOU • 1 stop
Top stopover airports
Manchester (MAN)
Cheapest • Avg £343 (return)
Newcastle upon Tyne (NCL)
Shortest trip • 3h 52m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Southampton!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Southampton (LHR-SOU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Southampton

Sat, 3 Oct - Tue, 13 Oct
Aer Lingus Logo
20:10 - 08:35LHR  London Heathrow-SOU Southampton Eastleigh
12h 25m1 stop Dublin
Aer Lingus Logo
09:15 - 20:20SOU  Southampton Eastleigh-LHR London Heathrow
11h 05m1 stop Dublin
£188Aer Lingus
Sat, 3 Oct - Tue, 13 Oct
Aer Lingus Logo
20:10 - 08:35LHR  London Heathrow-SOU Southampton Eastleigh
12h 25m1 stop Dublin
Aer Lingus Logo
09:15 - 16:00SOU  Southampton Eastleigh-LHR London Heathrow
6h 45m1 stop Dublin
£190Aer Lingus
Tue, 27 Oct - Tue, 3 Nov
Aer Lingus Logo
20:45 - 08:50LHR  London Heathrow-SOU Southampton Eastleigh
12h 05m1 stop Dublin
Aer Lingus Logo
09:20 - 15:35SOU  Southampton Eastleigh-LHR London Heathrow
6h 15m1 stop Dublin
£219Aer Lingus
Mon, 2 Nov - Mon, 9 Nov
Aer Lingus Logo
12:10 - 19:30LHR  London Heathrow-SOU Southampton Eastleigh
7h 20m1 stop Dublin
Aer Lingus Logo
09:20 - 19:50SOU  Southampton Eastleigh-LHR London Heathrow
10h 30m1 stop Dublin
£224Aer Lingus
Sat, 10 Oct - Mon, 12 Oct
Multiple Airlines Logo
11:30 - 18:55LHR  London Heathrow-SOU Southampton Eastleigh
7h 25m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
19:20 - 14:45SOU  Southampton Eastleigh-LHR London Heathrow
19h 25m2 stops Barcelona-El Prat Bilbao
£231Multiple Airlines
Sat, 10 Oct - Mon, 12 Oct
Multiple Airlines Logo
07:15 - 18:55LHR  London Heathrow-SOU Southampton Eastleigh
11h 40m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
19:20 - 14:45SOU  Southampton Eastleigh-LHR London Heathrow
19h 25m2 stops Barcelona-El Prat Bilbao
£232Multiple Airlines
Sat, 10 Oct - Mon, 12 Oct
Multiple Airlines Logo
07:15 - 18:55LHR  London Heathrow-SOU Southampton Eastleigh
11h 40m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
19:20 - 14:45SOU  Southampton Eastleigh-LHR London Heathrow
19h 25m2 stops Barcelona-El Prat Bilbao
£233Multiple Airlines
Wed, 30 Sep - Sun, 4 Oct
Aer Lingus Logo
21:10 - 08:40LHR  London Heathrow-SOU Southampton Eastleigh
11h 30m1 stop Dublin
Aer Lingus Logo
09:20 - 13:55SOU  Southampton Eastleigh-LHR London Heathrow
4h 35m1 stop Dublin
£234Aer Lingus
Thu, 8 Oct - Fri, 16 Oct
Multiple Airlines Logo
20:50 - 08:45LHR  London Heathrow-SOU Southampton Eastleigh
11h 55m1 stop Barcelona-El Prat
Multiple Airlines Logo
09:25 - 20:05SOU  Southampton Eastleigh-LHR London Heathrow
10h 40m1 stop Barcelona-El Prat
£236Multiple Airlines
Sat, 10 Oct - Mon, 12 Oct
Multiple Airlines Logo
07:15 - 18:55LHR  London Heathrow-SOU Southampton Eastleigh
11h 40m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
20:40 - 20:05SOU  Southampton Eastleigh-LHR London Heathrow
23h 25m2 stops Palma de Mallorca Son Sant Joan Barcelona-El Prat
£239Multiple Airlines
Booking Insights

Price, demand, and travel trends for London Heathrow Airport to Southampton flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from London Heathrow Airport to Southampton with more confidence.

How much is a return flight from London Heathrow Airport to Southampton?

Return flights from London Heathrow Airport to Southampton start at £188. Prices are below average for this route right now, with typical return fares ranging from £333 to £506. The lowest price found in the past 5 days was £188 on Aer Lingus.

What's the cheapest day of the week to fly from London Heathrow Airport to Southampton?

Saturday is the cheapest day of the week to fly from London Heathrow Airport to Southampton and is 25% cheaper than the average day. Thursday is the most expensive day with flight prices 140% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for London Heathrow Airport to Southampton flights

Cheapest flight

£99
Flights from London Heathrow Airport to Southampton

When to book flights from Heathrow to Southampton

Are your dates flexible? Find out the best times to travel from Heathrow to Southampton based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Heathrow Airport to Southampton flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from London Heathrow Airport to Southampton?

    Flights from London Heathrow Airport to Southampton usually depart from London Heathrow (LHR) and arrive at Southampton Eastleigh (SOU).

  • Which cabin classes can I book on flights from London Heathrow Airport to Southampton?

    Only Economy class is available on flights from London Heathrow Airport to Southampton.

  • Which airports do connecting flights from London Heathrow Airport to Southampton pass through?

    One-stop flights from London Heathrow Airport to Southampton most commonly connect through:

    • Belfast City (BHD) – 43% of one-stop connections
    • Manchester (MAN) – 43% of one-stop connections
    • Newcastle upon Tyne (NCL) – 14% of one-stop connections

    Belfast City (BHD) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Southampton?

    On the London Heathrow Airport to Southampton route, being flexible with your departure day can save you up to 69%. Saturday is the cheapest day at £306 return on average, while Thursday is the most expensive at £982 – a £675 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What popular places can I visit in Southampton?

    Some of the most popular sights in Southampton are Mayflower Theatre, St. Mary's Stadium, and Southampton General Hospital. These are among the most viewed places in Southampton on KAYAK.

  • How long is a flight from London Heathrow Airport to Southampton?

    There are currently no direct flights available from London Heathrow Airport to Southampton. Flights with 1 stopover take between 3h 52m and 6h 02m in total, depending on the connection.

  • Do I need a passport to fly from London Heathrow Airport to Southampton?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from London Heathrow Airport to Southampton changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £188 to £469. That means the highest observed fare was about 2x higher than the lowest one.

  • How are flight prices from London Heathrow Airport to Southampton looking right now?

    One-way fares from London Heathrow Airport to Southampton are currently lower than usual. Average one-way flight prices are about £137, which is 67% below the typical average for this route.

  • How much time can I save by choosing a different stopover airport from London Heathrow Airport to Southampton?

    Flying via Newcastle upon Tyne (NCL) gives the shortest average 1-stop total travel time of 3h 52m, compared to 4h 43m via Belfast City (BHD) and 6h 02m via Manchester (MAN).

  • Which car hire options are available at Southampton Eastleigh Airport (SOU)?

    Southampton Eastleigh Airport (SOU) hosts 5 major car hire companies, with daily rates starting from around £11 for economy cars. Top options include:
    • Alamo
    • Budget
    • Avis
    • Enterprise Rent-A-Car
    • Sixt

  • How much should I expect to pay for a London Heathrow Airport to Southampton flight?

    Return flights from London Heathrow Airport to Southampton range from £333 to £506, with an average of £408 over the past 12 months. Anything below £333 counts as a good deal.

Your guide to booking London Heathrow Airport to Southampton flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure instead of Thursday. On this route, Saturday flights average £306 – about £675 less than Thursday (69% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Southampton Eastleigh Airport.
    - DoubleTree by Hilton Southampton
    - Premier Inn Southampton Airport

Prefer to fly direct from London Heathrow Airport to Southampton?

 
Find which airlines fly direct from London Heathrow Airport to Southampton Eastleigh Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Southampton Eastleigh

Monday

AccesRail

AccesRail

Tuesday

AccesRail

AccesRail

Wednesday

AccesRail

AccesRail

Thursday

AccesRail

AccesRail

Friday

AccesRail

AccesRail

Saturday

AccesRail

AccesRail

Sunday

AccesRail

AccesRail

See more direct flights

Direct returns

Southampton Eastleigh to London Heathrow

Monday

AccesRail

AccesRail

Tuesday

AccesRail

AccesRail

Wednesday

AccesRail

AccesRail

Thursday

AccesRail

AccesRail

Friday

AccesRail

AccesRail

Saturday

AccesRail

AccesRail

Sunday

AccesRail

AccesRail

See more direct flights

More options for your flight from Heathrow to Southampton

Complete your trip to Southampton with a hotel stay or car hire

Car hire in Southampton
Hotels in Southampton
Holidays in Southampton