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

A quick flight from Southampton to London Heathrow Airport can take about 6h 40m. Aer Lingus provides one of the quickest options available for as low as £209. Southampton and London Heathrow Airport are separated by a distance of 53 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

Southampton Eastleigh (SOU) is the airport you will fly out of if you book a flight from Southampton to London Heathrow. You should not have trouble finding flights to London Heathrow from Eastleigh; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Southampton airport to London Heathrow. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.

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

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

How can I find direct flights from Southampton to Heathrow?

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

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

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

£101+ Cheap Flights from Southampton to London Heathrow Airport

Cheap flight deals from Southampton to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Southampton to Heathrow
Explore the most affordable flight options available from Southampton to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Mon 28/919:20 -

1 stop13h 50m

Thu 1/1021:10 -

1 stop11h 30m

Deal found 14/9£192

Mon 5/1020:00 -

1 stop12h 05m

Thu 8/1021:10 -

1 stop11h 30m

Deal found 11/9£208

Thu 8/1009:20 -

1 stop6h 40m

Thu 15/1007:40 -

1 stop11h 50m

Deal found 10/9£209

Sat 31/1009:20 -

1 stop10h 30m

Sat 7/1118:45 -

1 stop14h 00m

Deal found 10/9£212

Mon 12/1020:00 -

1 stop12h 05m

Mon 19/1009:55 -

1 stop8h 55m

Deal found 14/9£218

Sun 1/1109:20 -

1 stop6h 15m

Sat 7/1118:45 -

1 stop14h 00m

Deal found 12/9£219

Sun 1/1117:30 -

1 stop15h 30m

Sat 7/1116:25 -

1 stop16h 30m

Deal found 10/9£220

Thu 29/1012:25 -

1 stop5h 25m

Thu 5/1114:15 -

1 stop5h 15m

Deal found 13/9£224

Thu 22/1009:20 -

1 stop4h 35m

Thu 29/1008:50 -

1 stop10h 40m

Deal found 10/9£224

Tue 29/909:15 -

1 stop4h 40m

Sat 3/1015:00 -

1 stop3h 55m

Deal found 14/9£227

Sat 31/1017:20 -

1 stop14h 20m

Sat 7/1116:25 -

1 stop16h 30m

Deal found 10/9£234

Find flight deals from Southampton to Heathrow

Round-trip from	£192
One-way from	£101

Aer Lingus
28/9-1/10
2 total stops
25h 20m total
Southampton to London

Search Deals

Aer Lingus
5/10-31/12
1 total stop
17h 55m total
Southampton to London

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Fri 15/1

20:00-08:05

1 stop12h 05m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£113

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Thu 24/9

09:25-09:10

2 stops23h 45m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£150

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Thu 24/9

20:00-08:05

1 stop12h 05m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£161

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Fri 29/1

19:15-08:10

1 stop12h 55m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£169

Fastest return journey

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Fri 27/11

12:35-16:15

1 stop3h 40m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£182

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Mon 28/9

19:20-09:10

1 stop13h 50m

London Heathrow

Thu 1/10

21:10-08:40

1 stop11h 30m

£192

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Wed 23/9

14:25-21:50

1 stop7h 25m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£209

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sat 26/9

16:45-07:55

1 stop15h 10m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£218

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Mon 12/10

20:00-08:05

1 stop12h 05m

London Heathrow

Mon 19/10

09:55-18:50

1 stop8h 55m

£218

SouthamptonLondon

SOU Southampton Eastleigh - LHR London Heathrow

SOULHR

Southampton Eastleigh

Sun 1/11

09:20-15:35

1 stop6h 15m

London Heathrow

Sat 7/11

18:45-08:45

1 stop14h 00m

£219

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 19 resultsSorted by cheapest first

Best time to book a flight from Southampton to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Southampton with our price prediction graph.

SOU-LHR

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 Southampton to London Heathrow Airport

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

A simple way to save on the total cost of your ticket is to fly from Southampton to London Heathrow Airport in the morning. If you’re flexible enough to do this you can expect to save up to 42% on your trip compared to booking a flight in the evening.

Related info for your journey

What airport do you fly from for flights from Southampton to London Heathrow?
Southampton Eastleigh (SOU) is the airport you will fly out of if you book a flight from Southampton to London Heathrow. You should not have trouble finding flights to London Heathrow from Eastleigh; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Southampton airport to London Heathrow. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.
How long is the flight from Southampton to London Heathrow Airport?
A quick flight from Southampton to London Heathrow Airport can take about 6h 40m. Aer Lingus provides one of the quickest options available for as low as £209. Southampton and London Heathrow Airport are separated by a distance of 53 mi. This flight may include one or multiple stops.
Can I find deals for flights from Southampton to Heathrow that include hotel bookings?
Yes. In addition to deals on Southampton to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Heathrow.
Can I find deals for business class flights from Southampton to Heathrow?
Yes. Cheapflights offers flight deals from Southampton to Heathrow 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

Hounslow

Luton

Milton Keynes

Gatwick

Wembley

Slough

Ilford

Hayes

Northampton

Croydon

Colchester

Eastbourne

Brentford

Enfield

Southend-on-Sea

Barnet

Southall

Watford

Swindon

Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

Heathrow flight routes

Other flight options

Other flights from Southampton

Popular flights

Alternative routes for Southampton to Heathrow

Edinburgh to Gatwick flights

Edinburgh to Stansted flights

Edinburgh to Luton flights

Edinburgh to Heathrow flights

Edinburgh to London City flights

Manchester to Gatwick flights

Manchester to Luton flights

Manchester to Stansted flights

Manchester to London City flights

Manchester to Southend flights

Manchester to Heathrow flights

Newcastle upon Tyne to Gatwick flights

Newcastle upon Tyne to Luton flights

Newcastle upon Tyne to Stansted flights

Newcastle upon Tyne to London City flights

Newcastle upon Tyne to Southend flights

Newcastle upon Tyne to Heathrow flights

Birmingham to Southend flights

Liverpool to London City flights

Birmingham to Heathrow flights

Birmingham to London City flights

Birmingham to Gatwick flights

Birmingham to Stansted flights

Birmingham to Luton flights

Heathrow to Gatwick flights

Liverpool to Heathrow flights

Leeds to Heathrow flights

Liverpool to Gatwick flights

Liverpool to Stansted flights

Liverpool to Luton flights

Liverpool to Southend flights

Southampton to Gatwick flights

Newquay to Heathrow flights

Southampton to London City flights

Gatwick to Heathrow flights

Southampton to Stansted flights

Bristol to Gatwick flights

Southampton to Luton flights

Newquay to Gatwick flights

Southampton to Southend flights

Newquay to Luton flights

Edinburgh to Southend flights

Bristol to London City flights

Newquay to London City flights

Newquay to Stansted flights

Exeter to Gatwick flights

Leeds to London City flights

Exeter to Luton flights

Exeter to Stansted flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Southampton to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Southampton to Heathrow 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 Southampton to Heathrow with no change fees?

Yes, we can. To see specific flights from Southampton to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from Southampton to Heathrow 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 Southampton to London Heathrow Airport from £101

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Heathrow

Cheapest flights from Southampton to HeathrowExplore the most affordable flight options available from Southampton to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Explore the most affordable flight options available from Southampton to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Best flights from Southampton to HeathrowDiscover carefully curated flight deals from Southampton to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Discover carefully curated flight deals from Southampton to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Last-minute flights from Southampton to HeathrowDiscover last-minute flight deals from Southampton to Heathrow. Data last updated 15 September 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to Heathrow. Data last updated 15 September 2026 and is based on user searches.

One-way flights from Southampton to HeathrowSearch for one-way flight options from Southampton to Heathrow. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.

Search for one-way flight options from Southampton to Heathrow. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.

Find flight deals from Southampton to Heathrow

Round-trip from

One-way from

Cheapflights Fare Finder

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

Best time to book a flight from Southampton to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Southampton with our price prediction graph.

Cheapflights Insights

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

A simple way to save on the total cost of your ticket is to fly from Southampton to London Heathrow Airport in the morning. If you’re flexible enough to do this you can expect to save up to 42% on your trip compared to booking a flight in the evening.

Related info for your journey

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

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

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

How can I find direct flights from Southampton to Heathrow?

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

Travelling to a place near London Heathrow Airport?

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 Southampton to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow 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 Southampton to Heathrow by cabin class

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

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.

Southampton and Heathrow flights

Browse other Southampton and Heathrow flight options. Last updated on 15 September 2026.

Other flights from Southampton

Browse through other flights departing from Southampton. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Southampton to Heathrow
Explore the most affordable flight options available from Southampton to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Best flights from Southampton to Heathrow
Discover carefully curated flight deals from Southampton to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Last-minute flights from Southampton to Heathrow
Discover last-minute flight deals from Southampton to Heathrow. Data last updated 15 September 2026 and is based on user searches.

One-way flights from Southampton to Heathrow
Search for one-way flight options from Southampton to Heathrow. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.