Cheap flights from London Heathrow Airport to Southampton from £87
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Heathrow to Southampton
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Southampton (SOU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 August 2025.
Round-trip from | £221 |
---|---|
One-way from | £87 |
Find flight deals from Heathrow to Southampton
Cheapest flights from Heathrow to SouthamptonExplore the most affordable flight options available from Heathrow to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 August 2025.
Explore the most affordable flight options available from Heathrow to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 August 2025.
Cheapflights Fare Finder
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
Wed 17/9
07:40-19:30
1 stop11h 50m
Southampton Eastleigh
Fri 19/9
19:25-14:15
1 stop18h 50m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Wed 24/9
09:15-15:15
1 stop6h 00m
Southampton Eastleigh
Wed 1/10
08:55-15:10
1 stop6h 15m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Tue 23/9
19:20-08:25
1 stop13h 05m
Southampton Eastleigh
Tue 30/9
08:55-21:40
1 stop12h 45m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Fri 26/9
20:55-08:45
1 stop11h 50m
Southampton Eastleigh
Fri 3/10
17:35-07:40
1 stop14h 05m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Sat 11/10
06:30-17:30
1 stop11h 00m
Southampton Eastleigh
Sun 12/10
09:20-17:50
1 stop8h 30m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Thu 11/9
15:10-19:30
1 stop4h 20m
Southampton Eastleigh
Mon 15/9
08:05-14:15
1 stop6h 10m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Fri 3/10
15:05-18:55
1 stop3h 50m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Sat 11/10
07:30-11:55
1 stop4h 25m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Mon 20/10
14:15-19:10
1 stop4h 55m
Best time to book a flight from Heathrow to Southampton
Have a flexible travel schedule? Discover the best time to fly to Southampton from Heathrow with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Southampton
What’s the top stopover airport for flights from London Heathrow Airport to Southampton?
Amsterdam (AMS) – chosen by Cheapflights users on 67% of one-stop itineraries from London Heathrow Airport to Southampton on Cheapflights.
What’s the fastest stopover option from London Heathrow Airport to Southampton?
Flights via Belfast (BHD) have the shortest average one-way travel time for one-stop routes: 3h 53m.
What’s the fastest stopover option from London Heathrow Airport to Southampton?
Flights via Belfast (BHD) have the shortest average one-way travel time for one-stop routes: 3h 53m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Southampton?
Flights via Belfast (BHD) offer the fastest connection on this route, with an average stopover time of 0h 44m.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Heathrow to Southampton
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
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How does Cheapflights help users find flights from Heathrow to Southampton?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Southampton. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Southampton?
Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Southampton for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Heathrow to Southampton with no change fees?
Need flexible booking options for your flight to Southampton from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Heathrow to Southampton become cheaper?
Not ready to book yet? You can track prices for flights from Heathrow to Southampton on Cheapflights with our Price Alert feature and get notified when better prices are available.