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Cheap flights from London Heathrow Airport to Southampton from £77

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 16/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOU
22 3月 — 29 3月1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Southampton

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Southampton
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 20 2月 2026.

週一 7/922:20
LHR
-
SOU
Nonstop1h 45m
Euroairlines
週一 12/1019:00
SOU
-
LHR
Nonstop1h 50m
Euroairlines
Deal found 20/2£91
週四 16/420:50
LHR
-
SOU
1 stop11h 55m
Multiple Airlines
週一 20/419:20
SOU
-
LHR
2 stops15h 10m
Multiple Airlines
Deal found 19/2£240
週四 5/320:25
LHR
-
SOU
1 stop11h 15m
Multiple Airlines
週一 9/314:35
SOU
-
LHR
1 stop4h 40m
Multiple Airlines
Deal found 20/2£250
週四 6/820:55
LHR
-
SOU
1 stop11h 50m
KLM
週日 16/817:30
SOU
-
LHR
1 stop3h 25m
KLM
Deal found 17/2£252
週三 18/320:45
LHR
-
SOU
1 stop12h 00m
Aer Lingus
週三 25/316:05
SOU
-
LHR
1 stop5h 00m
Aer Lingus
Deal found 17/2£257
週六 14/306:30
LHR
-
SOU
1 stop10h 30m
KLM
週六 21/309:25
SOU
-
LHR
1 stop11h 25m
KLM
Deal found 16/2£261
週日 22/307:00
LHR
-
SOU
1 stop7h 45m
Multiple Airlines
週二 24/316:05
SOU
-
LHR
1 stop5h 00m
Multiple Airlines
Deal found 18/2£268
週二 24/220:45
LHR
-
SOU
1 stop15h 10m
Aer Lingus
週二 3/316:05
SOU
-
LHR
1 stop5h 00m
Aer Lingus
Deal found 17/2£269
週六 4/415:10
LHR
-
SOU
1 stop4h 20m
Aer Lingus
週六 11/420:00
SOU
-
LHR
1 stop12h 05m
Aer Lingus
Deal found 18/2£270
週三 18/320:25
LHR
-
SOU
1 stop11h 55m
KLM
週三 25/317:35
SOU
-
LHR
1 stop3h 15m
KLM
Deal found 18/2£272
週五 6/320:45
LHR
-
SOU
1 stop12h 00m
Aer Lingus
週二 10/312:25
SOU
-
LHR
1 stop7h 25m
Aer Lingus
Deal found 19/2£273

Find 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 20 2月 2026.

Round-trip from

£240

One-way from

£77
16/4-20/4
  • 16/4-20/4
  • 3 total stops
  • 27h 05m total
  • London to Southampton
Search Deals
16/4
  • 16/4
  • 1 total stop
  • 11h 55m total
  • London to Southampton
Search Deals

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 20 2月 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Southampton that are best for you.

Fly from

Heathrow

Fly to

Southampton

Route

Depart

Return

Price

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週四 16/4

20:50-08:45

1 stop11h 55m

Southampton Eastleigh

週一 20/4

19:20-10:30

2 stops15h 10m

£240

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週三 18/3

20:45-08:45

1 stop12h 00m

Southampton Eastleigh

週三 25/3

16:05-21:05

1 stop5h 00m

£257

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週六 14/3

06:30-17:00

1 stop10h 30m

Southampton Eastleigh

週六 21/3

09:25-20:50

1 stop11h 25m

£261

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週日 22/3

07:00-14:45

1 stop7h 45m

Southampton Eastleigh

週二 24/3

16:05-21:05

1 stop5h 00m

£268

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週六 4/4

15:10-19:30

1 stop4h 20m

Southampton Eastleigh

週六 11/4

20:00-08:05

1 stop12h 05m

£270

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週三 18/3

20:25-08:20

1 stop11h 55m

Southampton Eastleigh

週三 25/3

17:35-20:50

1 stop3h 15m

£272

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週五 6/3

20:45-08:45

1 stop12h 00m

Southampton Eastleigh

週二 10/3

12:25-19:50

1 stop7h 25m

£273

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週三 4/3

20:45-08:45

1 stop12h 00m

Southampton Eastleigh

週日 8/3

20:10-10:10

1 stop14h 00m

£275

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週六 14/3

06:55-16:45

1 stop9h 50m

Southampton Eastleigh

週六 21/3

17:15-08:00

1 stop14h 45m

£283

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

週三 18/3

07:45-17:30

1 stop9h 45m

Southampton Eastleigh

週三 25/3

12:00-19:30

1 stop7h 30m

£286

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 21 results
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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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 20 2月 2026.

When flying from London Heathrow Airport to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

  • What airport do you fly into for flights to Southampton from London Heathrow?

    Located just 3.5 mi from the city center, Southampton Eastleigh is the airport most travelers will use when flying to Southampton from London Heathrow. Booking flights from London Heathrow to Eastleigh (SOU) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 0 different airlines.

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

    Aer Lingus and KLM can get you from London Heathrow Airport to Southampton in just under 10h 30m. Your travel time can differ by up to 1h 30m. London Heathrow Airport and Southampton are separated by a distance of 53 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Heathrow to Southampton that include hotel bookings?

    Yes. In addition to deals on Heathrow to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Southampton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Southampton.

  • Can I find deals for business class flights from Heathrow to Southampton?

    Yes. Cheapflights offers flight deals from Heathrow to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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