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

Aer Lingus can get you from London Heathrow Airport to Southampton in just under 12h 05m. Your travel time can differ by up to . London Heathrow Airport and Southampton are separated by a distance of 53 mi.

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.

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).

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.

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.

£99+ Cheap Flights from London Heathrow Airport to Southampton

Cheap flight deals from Heathrow to Southampton

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 17 September 2026.

Sat 3/1020:10 -

1 stop12h 25m

Tue 13/1009:15 -

1 stop11h 05m

Deal found 13/9£188

Tue 27/1020:45 -

1 stop12h 05m

Tue 3/1109:20 -

1 stop6h 15m

Deal found 12/9£219

Mon 2/1112:10 -

1 stop7h 20m

Mon 9/1109:20 -

1 stop10h 30m

Deal found 12/9£224

Sat 10/1011:30 -

1 stop7h 25m

Mon 12/1019:20 -

2 stops19h 25m

Deal found 15/9£231

Wed 30/921:10 -

1 stop11h 30m

Sun 4/1009:20 -

1 stop4h 35m

Deal found 15/9£234

Thu 8/1020:50 -

1 stop11h 55m

Fri 16/1009:25 -

1 stop10h 40m

Deal found 12/9£236

Mon 2/1107:10 -

1 stop4h 55m

Sun 8/1119:40 -

1 stop14h 20m

Deal found 16/9£240

Mon 12/1015:10 -

1 stop4h 20m

Mon 19/1020:00 -

1 stop13h 05m

Deal found 13/9£244

Find flight deals from Heathrow to Southampton

Round-trip from	£188
One-way from	£99

Aer Lingus
3/10-13/10
2 total stops
23h 30m total
London to Southampton

Search Deals

Aer Lingus
10/10-31/12
1 total stop
9h 10m total
London to Southampton

Search Deals

Cheapflights Fare Finder

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

Cheapest return flight

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Sat 10/10

07:40-16:50

1 stop9h 10m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£99

Fastest return journey

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Sat 26/9

15:00-18:55

1 stop3h 55m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£109

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Fri 25/9

15:00-18:55

1 stop27h 55m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£139

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Fri 6/11

17:20-08:20

1 stop15h 00m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£143

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Thu 24/12

06:30-16:20

2 stops9h 50m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£165

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Mon 9/11

19:55-09:45

1 stop13h 50m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£174

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Tue 3/11

19:40-09:45

1 stop14h 05m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£174

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Sat 7/11

07:00-12:05

1 stop5h 05m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£180

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Tue 27/10

20:45-08:50

1 stop12h 05m

Southampton Eastleigh

Tue 3/11

09:20-15:35

1 stop6h 15m

£219

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Mon 2/11

12:10-19:30

1 stop7h 20m

Southampton Eastleigh

Mon 9/11

09:20-19:50

1 stop10h 30m

£224

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 18 resultsSorted by cheapest first

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.

LHR-SOU

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?

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

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 can get you from London Heathrow Airport to Southampton in just under 12h 05m. Your travel time can differ by up to . London Heathrow Airport and Southampton are separated by a distance of 53 mi.
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

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

Other flight options

Other flights from Heathrow

Popular flights

Southampton flight routes

Alternative routes for Heathrow to Southampton

Luton to Edinburgh flights

Stansted to Edinburgh flights

Gatwick to Edinburgh flights

Heathrow to Edinburgh flights

London City to Edinburgh flights

Gatwick to Manchester flights

Stansted to Manchester flights

London City to Manchester flights

Luton to Manchester flights

Southend to Manchester flights

Heathrow to Manchester flights

Gatwick to Newcastle upon Tyne flights

Stansted to Newcastle upon Tyne flights

Luton to Newcastle upon Tyne flights

Heathrow to Newcastle upon Tyne flights

London City to Birmingham flights

Gatwick to Birmingham flights

Heathrow to Birmingham flights

Luton to Birmingham flights

Stansted to Birmingham flights

London City to Newcastle upon Tyne flights

Heathrow to Leeds flights

London City to Newquay flights

Heathrow to Newquay flights

Stansted to Newquay flights

Gatwick to Newquay flights

Luton to Newquay flights

Heathrow to Gatwick flights

Stansted to Leeds flights

Luton to Leeds flights

Southend to Edinburgh flights

Southend to Newcastle upon Tyne flights

Gatwick to Leeds flights

Heathrow to Norwich flights

London City to Leeds flights

Stansted to Norwich flights

London City to Norwich flights

Gatwick to Norwich flights

Luton to Norwich flights

Southend to Norwich flights

London City to Bristol flights

Gatwick to Bristol flights

Gatwick to Heathrow flights

Gatwick to Liverpool flights

Luton to Liverpool flights

Heathrow to Liverpool flights

Heathrow to Exeter flights

Stansted to Liverpool flights

Gatwick to Southampton flights

Fly with Cheapflights

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.

Cheap flights from London Heathrow Airport to Southampton from £99

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 17 September 2026.

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 17 September 2026.

Best flights from Heathrow to SouthamptonDiscover carefully curated flight deals from Heathrow to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from Heathrow to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Heathrow to SouthamptonDiscover last-minute flight deals from Heathrow to Southampton. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Southampton. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Heathrow to SouthamptonSearch for one-way flight options from Heathrow to Southampton. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from Heathrow to Southampton. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Find flight deals from Heathrow to Southampton

Round-trip from

One-way from

Cheapflights Fare Finder

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

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

What is the cheapest time of day to fly from LHR to SOU?

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

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

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

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

How can I find direct flights from Heathrow to Southampton?

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

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.

Complete your trip

Complete your trip to Southampton by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Heathrow to Southampton by cabin class

Find flights from Heathrow to Southampton, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Southampton flights

Browse other Heathrow and Southampton flight options. Last updated on 17 September 2026.

Other flights from Heathrow

Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Southampton

Explore flights to Southampton departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2026.

Fly with Cheapflights

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

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Southampton?

Can Cheapflights find flights from Heathrow to Southampton with no change fees?

Can Cheapflights notify me if prices for flights from Heathrow to Southampton become cheaper?

100% Free

Book with Flexibility

Travel Smart

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 17 September 2026.

Best flights from Heathrow to Southampton
Discover carefully curated flight deals from Heathrow to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Heathrow to Southampton
Discover last-minute flight deals from Heathrow to Southampton. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Heathrow to Southampton
Search for one-way flight options from Heathrow to Southampton. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.