Cheap flights from London Heathrow Airport to Southampton from £90
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 15/12. 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 11 July 2025.
Round-trip from | £194 |
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One-way from | £90 |
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 11 July 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 11 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 11 July 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
Fri 5/9
20:55-07:55
1 stop11h 00m
Southampton Eastleigh
Tue 9/9
12:25-21:45
1 stop9h 20m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Thu 7/8
20:55-08:45
1 stop11h 50m
Southampton Eastleigh
Wed 13/8
09:20-16:15
1 stop6h 55m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Wed 20/8
21:10-08:40
1 stop11h 30m
Southampton Eastleigh
Wed 27/8
09:10-14:55
1 stop5h 45m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Fri 10/10
07:25-12:00
1 stop4h 35m
Southampton Eastleigh
Thu 16/10
16:35-20:45
1 stop4h 10m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Mon 15/12
09:55-19:20
1 stop9h 25m
LondonSouthampton
LHR - SOU
LHRSOU
London Heathrow
Fri 5/9
14:20-19:30
1 stop5h 10m
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 is the cheapest time of day to fly from LHR to SOU?
Find hourly flight availability from Heathrow to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.
It’s typically best to fly out from London Heathrow Airport to Southampton at midday. Doing so could potentially save you 37% on the flight price compared to flying in the morning, which is usually more expensive.
Reviews of airlines servicing Southampton
Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated 11 July 2025.
See what other customers who have flown with KLM, Aer Lingus, andBritish Airways from London Heathrow Airport to Southampton have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Anonymous,Jun 2025
AMS - BOS
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.