Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Southampton from £105

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOU
26 Feb — 5 Mar1
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 21 February 2025.

Round-trip from

£238

One-way from

£105
20/3-27/3
  • 20/3-27/3
  • 2 total stops
  • 24h 35m total
  • London to Southampton
Search Deals
6/4
  • 6/4
  • 1 total stop
  • 23h 35m 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 21 February 2025.

Tue 2/920:55LHR - SOU
1 stop11h 50mKLM
Sat 6/917:35SOU - LHR
1 stop14h 05mKLM
Deal found 20/2£216
Thu 20/306:45LHR - SOU
1 stop12h 10mMultiple Airlines
Thu 27/308:55SOU - LHR
1 stop12h 25mMultiple Airlines
Deal found 20/2£238
Thu 20/315:10LHR - SOU
1 stop4h 30mAer Lingus
Thu 27/320:10SOU - LHR
1 stop24h 55mAer Lingus
Deal found 20/2£267
Sat 5/419:20LHR - SOU
1 stop13h 05mBritish Airways
Sat 12/409:55SOU - LHR
1 stop6h 35mBritish Airways
Deal found 20/2£366

Find flights from Heathrow to Southampton within your budget

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 21 February 2025.

Fly from

Heathrow

Fly to

Southampton

Route

Depart

Return

Price

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Thu 20/3

06:45-18:55

1 stop12h 10m

Southampton Eastleigh

Thu 27/3

08:55-21:20

1 stop12h 25m

£238

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Sat 22/3

06:30-16:50

1 stop10h 20m

Southampton Eastleigh

Mon 24/3

17:20-20:50

1 stop3h 30m

£239

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Thu 20/3

15:10-19:40

1 stop4h 30m

Southampton Eastleigh

Thu 27/3

20:10-21:05

1 stop24h 55m

£267

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Sat 5/4

19:20-08:25

1 stop13h 05m

Southampton Eastleigh

Sat 12/4

09:55-16:30

1 stop6h 35m

£366

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Sun 6/4

08:50-08:25

1 stop23h 35m

£105

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Tue 11/3

14:45-18:55

1 stop4h 10m

£217

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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.

Travel insights for flights from Heathrow to Southampton

Get recent, data-driven insights about flights from Heathrow to Southampton including ideal travel times, pricing trends, and more.

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 21 February 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 21 February 2025.
KLM
7.8
Good
1,333 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.0
Good
1,069 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways
6.6
Okay
6,762 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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.

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

    Currently priced at £239, KLM will fly you from London Heathrow Airport to Southampton and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Aer Lingus and British Airways - these airlines can fly you to your destination from £267 and £366, respectively.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
Luton to Edinburgh flights
Heathrow to Edinburgh flights
Stansted to Edinburgh flights
Gatwick to Edinburgh flights
London City to Edinburgh flights
Heathrow to Manchester flights
Gatwick to Manchester flights
London City to Manchester flights
Gatwick to Newquay flights
Heathrow to Newquay flights
London City to Newquay flights
Luton to Manchester flights
Heathrow to Newcastle upon Tyne flights
Stansted to Manchester flights
Luton to Newquay flights
Stansted to Newquay flights
Heathrow to Liverpool flights
Heathrow to Gatwick flights
Southend to Newquay flights
Heathrow to Leeds flights
Gatwick to Newcastle upon Tyne flights
Heathrow to Birmingham flights
London City to Newcastle upon Tyne flights
Southend to Manchester flights
Luton to Newcastle upon Tyne flights
Stansted to Newcastle upon Tyne flights
Gatwick to Liverpool flights
Gatwick to Leeds flights
Stansted to Liverpool flights
Luton to Liverpool flights
London City to Liverpool flights
London City to Leeds flights
Gatwick to Birmingham flights
Luton to Leeds flights
Heathrow to Bristol flights
Gatwick to Bristol flights
Gatwick to Heathrow flights
London City to Birmingham flights
Stansted to Birmingham flights
Luton to Birmingham flights
Stansted to Leeds flights
London City to Southampton flights
Gatwick to Southampton flights
Stansted to Bristol flights
Southend to Edinburgh flights
London City to Bristol flights
Stansted to Southampton flights
Luton to Southampton flights
Luton to Bristol flights

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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.