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Cheap Flights from London (LHR) to Southampton (SOU)

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Compare London Heathrow to Southampton flight deals

Find the cheapest month or even day of the year to fly to Southampton

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Flight deals from London Heathrow to Southampton

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Southampton? Find the lowest prices on one-way and return tickets right here.
Southampton.$404 per passenger.Departing Tue, 16 Sep, returning Tue, 16 Sep.Return flight with British Airways and Aer Lingus.Outbound indirect flight with British Airways, departs from London Heathrow on Tue, 16 Sep, arriving in Southampton.Inbound indirect flight with Aer Lingus, departs from Southampton on Tue, 16 Sep, arriving in London Heathrow.Price includes taxes and charges.From $404, select.
Southampton.$519 per passenger.Departing Tue, 17 Jun, returning Tue, 24 Jun.Return flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from London Heathrow on Tue, 17 Jun, arriving in Southampton.Inbound indirect flight with Aer Lingus, departs from Southampton on Tue, 24 Jun, arriving in London Heathrow.Price includes taxes and charges.From $519, select.
Southampton.$529 per passenger.Departing Mon, 30 Jun, returning Fri, 4 Jul.Return flight with Aer Lingus and easyJet.Outbound indirect flight with Aer Lingus, departs from London Heathrow on Mon, 30 Jun, arriving in Southampton.Inbound indirect flight with easyJet, departs from Southampton on Fri, 4 Jul, arriving in London Heathrow.Price includes taxes and charges.From $529, select.

Find the cheapest month to fly from London Heathrow to Southampton

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Southampton flights are currently cheapest in September.
May
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Jun
from $519
Jul
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Aug
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Sep
from $404
Oct
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Nov
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Dec
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Jan
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Apr
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London Heathrow to Southampton: Alternative routes

Compare routes from London Heathrow to Southampton below. You may find an airport to fly into that's cheaper, faster, or easier than Southampton.

London to Southampton: Flight information

The things to know before you go.
Cheapest flight found$404
Cheapest month to flySeptember

Finding cheap flights from London Heathrow to Southampton: Frequently asked questions

The best price we found for a return flight from London Heathrow to Southampton is $404. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London Heathrow to Southampton. But we found flights with one or more stops from $404.
As of May 2025, there are no flights flying from London Heathrow to Southampton.
The cheapest month to fly from London Heathrow to Southampton is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Southampton Airport on Tuesday, 16 September 2025.
No airlines currently offer direct flights between London Heathrow Airport and Southampton Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Southampton but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Southampton is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, British Airways offers the cheapest flight tickets to Southampton.

Travelling from London Heathrow Airport (LHR) to Southampton Airport (SOU): what you need to know

  • Southampton's timezone is UTC+0, which is the same as London.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your LHR to SOU flight.

  • You can expect longer queues during popular months such as July. Arriving up to four hours in advance for an international flight and two hours for domestic departures will help ensure a smooth travel experience.

  • Consider adding a stopover when booking your ticket from London Heathrow Airport to Southampton Airport. Simply deselect 'Direct flights only' to break up your journey, or maybe even explore a new city along the way. Check out these options between LHR and SOU:

    • Jersey Airport

    • Amsterdam Airport Schiphol

    • Newcastle International Airport

How to find the cheapest flights from London Heathrow Airport (LHR) to Southampton Airport (SOU)

  • $177 is the best price for a one-way London Heathrow Airport to Southampton Airport flight. A return flight starts from $404. These prices may change based on demand and availability.

  • It's usually best to book early if you're looking for cheap tickets from LHR to SOU. That's because airlines adjust prices based on demand, which tends to rise closer to departure.

  • Finding cheap flights from London Heathrow Airport to Southampton Airport is more likely if you're flexible with your travel dates. Use the 'Whole month' search tool to see the best prices across the month and land a great deal.

  • Save time searching for cheap flights from LHR to SOU by setting up a Price Alert. You'll receive an email or notification on the app when a new discounted fare appears.

  • Pick your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from London Heathrow Airport to Southampton Airport.

Handy information about London Heathrow Airport (LHR)

  • When it comes to London Heathrow Airport's on-time performance, data shows 68.18% of flights arrive within the expected timeframe.

  • Central London to London Heathrow Airport is around 31 kilometres. Depending on traffic, it'll take about 55 minutes to get there if you're driving, ride-sharing or catching a cab.

  • The trip when using public transport takes about 1 hour.

  • Catching an early flight from London Heathrow Airport to Southampton Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra snooze time) by picking one of these stays near LHR:

Arriving at Southampton Airport (SOU)

  • If you're getting in on a late London Heathrow Airport to Southampton Airport flight, nothing tops the convenience of being close to the terminal. Grab your luggage from the carousel and then be resting not long after at one of these hotels near SOU:

  • Grab a Southampton Airport rental car and explore Southampton and beyond with your own set of wheels. Alamo, Budget and Europcar are popular providers you can book with here.

  • Reserving your ride from Southampton Airport about two weeks in advance can help you secure the lowest rate.

Getting from Southampton Airport (SOU) to central Southampton

  • Southampton Airport is roughly 8 kilometres from the centre of Southampton. The drive time takes around 20 minutes.

  • If you're travelling on public transport, expect a journey time of roughly 25 minutes.

When to fly to Southampton Airport (SOU)

  • August is the busiest month for flights from London Heathrow Airport to Southampton Airport. To steer clear of the crowds, head to Southampton in April.

  • The warmest month in Southampton is July, with temperatures ranging between 11ºC (52ºF) and 24ºC (75ºF). Lock in your flights from London Heathrow Airport to Southampton Airport in this month if this is the type of weather you like.

  • January has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Look for cheap tickets from LHR to SOU sometime then if you want to travel in cooler conditions.

Explore more of United Kingdom

  • You've seen Southampton, now it's time to discover other parts of United Kingdom. Travel about 113 kilometres north-east to London to tick off its popular sights. From Big Ben to The British Museum and Buckingham Palace, your itinerary will be busy.

  • Birmingham is another essential stop in United Kingdom and is around 177 kilometres north of Southampton. No journey is complete without a visit to Cadbury World, The Library of Birmingham and National Sea Life Centre.

Plan the rest of your trip from London to Southampton

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.