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Cheap flights from London Heathrow Airport to Southampton from £92

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOU
25 Mar — 1 Apr1
1 adult

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 20 March 2025.

Round-trip from

£176

One-way from

£92
3/4-28/4
  • 3/4-28/4
  • 2 total stops
  • 11h 05m total
  • London to Southampton
Search Deals
6/5
  • 6/5
  • 1 total stop
  • 10h 30m total
  • London to Southampton
Search Deals

Find flight deals from Heathrow to Southampton

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 March 2025.

Thu 3/410:35LHR - SOU
1 stop5h 40mMultiple Airlines
Mon 28/415:25SOU - LHR
1 stop5h 25mMultiple Airlines
Deal found 19/3£176
Sat 13/1206:55LHR - SOU
1 stop8h 15mBritish Airways
Mon 5/112:40SOU - LHR
1 stop5h 00mBritish Airways
Deal found 19/3£320
Sat 5/407:40LHR - SOU
1 stop8h 05mAer Lingus
Sat 12/409:40SOU - LHR
1 stop6h 15mAer Lingus
Deal found 19/3£686

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 March 2025.
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

Thu 3/4

10:35-16:15

1 stop5h 40m

Southampton Eastleigh

Mon 28/4

15:25-20:50

1 stop5h 25m

£176

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Thu 26/6

07:10-12:00

1 stop4h 50m

Southampton Eastleigh

Thu 31/7

16:45-20:45

1 stop4h 00m

£322

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Sat 5/4

07:40-15:45

1 stop8h 05m

Southampton Eastleigh

Sat 12/4

09:40-15:55

1 stop6h 15m

£686

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Tue 6/5

22:00-08:30

1 stop10h 30m

£92

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Wed 7/5

14:20-19:30

1 stop5h 10m

£119

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Wed 3/9

15:00-19:10

1 stop4h 10m

£138

Flights are sorted by cheapest return flights first.

Deals found on 19/3

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 March 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.

Rainfall in Southampton by month

Plan your trip to Southampton by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southampton ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Southampton when rainfall is around 25.0 mm.

Temperature in Southampton by month

Plan your trip to Southampton by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southampton, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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 20 March 2025.
Aer Lingus
7.0
Good
1,063 reviews
Check prices

Food

6.4

Comfort

7.0

Entertainment

6.7

Crew

7.9

Overall

7.0

Boarding

7.2

Reviews

1 / 20
4.0
Okay

Tadhg,Mar 2025

DUB - MAN

Flew Man to BGI. Crew were poor. Both coffee or tea due to a "water issue". Business class meal for gluten free was disappointing. 1903 lounge was excellent.
Aer Lingus
7.0
Good
1,063 reviews
Aer Lingus
7.0
Good
1,063 reviews
Check prices

Food

6.4

Comfort

7.0

Entertainment

6.7

Crew

7.9

Overall

7.0

Boarding

7.2

Reviews

1 / 20
4.0
Okay

Tadhg,Mar 2025

DUB - MAN

Flew Man to BGI. Crew were poor. Both coffee or tea due to a "water issue". Business class meal for gluten free was disappointing. 1903 lounge was excellent.
British Airways
6.6
Okay
6,710 reviews
Aer Lingus
7.0
Good
1,063 reviews
Check prices

Food

6.4

Comfort

7.0

Entertainment

6.7

Crew

7.9

Overall

7.0

Boarding

7.2

Reviews

1 / 20
4.0
Okay

Tadhg,Mar 2025

DUB - MAN

Flew Man to BGI. Crew were poor. Both coffee or tea due to a "water issue". Business class meal for gluten free was disappointing. 1903 lounge was excellent.

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 1 airline.

  • What are the cheapest airlines flying from London Heathrow Airport to Southampton round-trip?

    Currently priced at £322, British Airways will fly you from London Heathrow Airport to Southampton and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Aer Lingus for as low as £686.

  • 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.

  • What is the cheapest month to book a flight from London Heathrow Airport to Southampton?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Southampton (average of £203). Flying from London Heathrow Airport to Southampton in November is currently the most expensive (average of £262). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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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Top airline flying from Heathrow to Southampton

Discover the top airline that operate flights from Heathrow to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 March 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£204Average£331FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Southampton?

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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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