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Cheap flights from London Heathrow Airport to Southampton from £103

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOU
21 Jan — 28 Jan1
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 16 January 2025.

Round-trip from

£194

One-way from

£103
Aer Lingus
  • Aer Lingus
  • 9/2-12/2
  • 2 total stops
  • 22h 20m total
  • London to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 23/1
  • 1 total stop
  • 10h 50m 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 16 January 2025.

Sun 9/220:45LHR - SOU
1 stop12h 00mAer Lingus
Wed 12/209:30SOU - LHR
1 stop10h 20mAer Lingus
Deal found 15/1£194
Sat 8/206:55LHR - SOU
1 stop7h 45mMultiple Airlines
Tue 11/208:55SOU - LHR
1 stop7h 35mMultiple Airlines
Deal found 15/1£239
Mon 26/507:10LHR - SOU
1 stop4h 50mBritish Airways
Fri 30/508:30SOU - LHR
1 stop3h 50mBritish Airways
Deal found 15/1£353

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 16 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Sun 9/2

20:45-08:45

1 stop12h 00m

Southampton Eastleigh

Wed 12/2

09:30-19:50

1 stop10h 20m

£194

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Sat 8/2

06:55-14:40

1 stop7h 45m

Southampton Eastleigh

Tue 11/2

08:55-16:30

1 stop7h 35m

£239

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Mon 26/5

07:10-12:00

1 stop4h 50m

Southampton Eastleigh

Fri 30/5

08:30-12:20

1 stop3h 50m

£353

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Thu 23/1

08:50-19:40

1 stop10h 50m

£103

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Fri 14/2

07:05-08:25

1 stop25h 20m

£109

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Mon 17/3

07:40-12:00

1 stop4h 20m

£160

Flights are sorted by cheapest return flights first.

Deals found on 15/1

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 16 January 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 16 January 2025.
Aer Lingus
7.1
Good
1,075 reviews
Check prices

Comfort

7.0

Crew

7.9

Overall

7.1

Entertainment

6.8

Food

6.4

Boarding

7.2

Reviews

1 / 10

Our experience with Aer Lingus was really good, all the crew members were really friendly

Aer Lingus
7.1
Good
1,075 reviews
Aer Lingus
7.1
Good
1,075 reviews
Check prices

Comfort

7.0

Crew

7.9

Overall

7.1

Entertainment

6.8

Food

6.4

Boarding

7.2

Reviews

1 / 10

Our experience with Aer Lingus was really good, all the crew members were really friendly

British Airways
6.6
Okay
6,823 reviews
Aer Lingus
7.1
Good
1,075 reviews
Check prices

Comfort

7.0

Crew

7.9

Overall

7.1

Entertainment

6.8

Food

6.4

Boarding

7.2

Reviews

1 / 10

Our experience with Aer Lingus was really good, all the crew members were really friendly

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 £194, Aer Lingus will fly you from London Heathrow Airport to Southampton and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on British Airways for as low as £353.

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

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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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