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£146 Find cheap flights from London to Portsmouth

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Portsmouth departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Good to know - Cheap tickets from London to Portsmouth

Cheapest flight

£146
Flight from London Stansted Airport to Southampton

When to book flights from London to Portsmouth

Are your dates flexible? Find out the best times to travel from London to Portsmouth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs for booking flights from London to Portsmouth

  • Which airports will I be using when flying from London to Portsmouth?

    When flying out of London you’ll be using one of these airports: London City, London Gatwick, London Heathrow, London Luton, London Southend or London Stansted. Portsmouth does not have its own airport so you’ll be flying into nearby Southampton Eastleigh airport, which is 14.7 mi away.

  • How long does a flight from London to Portsmouth take?

    Direct flights cover the 65 miles separating London and Portsmouth in about 3h 40m.

  • How many flights are there between London and Portsmouth?

    4 direct flights run between London and Portsmouth on a daily basis. On average, there are about 28 departures each week.

  • What’s the cheapest day of the week to fly between London and Portsmouth?

    Consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to London, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

  • How does KAYAK find such low prices on flights from London to Portsmouth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Portsmouth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Portsmouth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portsmouth from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Portsmouth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Portsmouth with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Portsmouth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portsmouth from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights from London to Portsmouth

  • There is no airport in Portsmouth. Instead, you’ll be flying into Southampton Airport when flying between London and Portsmouth.

Book cheap flights from London to Portsmouth

Cheapest flights to Portsmouth from London found in 2024

Recent return flight deals

9/12Mon
1 stop
4h 25mSTN-SOU
16/12Mon
1 stop
10h 05mSOU-STN
£146
9/12Mon
1 stop
4h 25mSTN-SOU
16/12Mon
1 stop
10h 05mSOU-STN
£148
9/12Mon
1 stopeasyJet
4h 55mLTN-SOU
16/12Mon
1 stopeasyJet
8h 05mSOU-LTN
£150
9/12Mon
1 stopeasyJet
4h 05mSTN-SOU
16/12Mon
1 stopeasyJet
4h 00mSOU-STN
£150
9/12Mon
1 stopKLM
8h 10mLHR-SOU
16/12Mon
1 stopKLM
3h 30mSOU-LHR
£271
10/12Tue
1 stopKLM
8h 10mLCY-SOU
15/12Sun
1 stopKLM
3h 45mSOU-LCY
£279
9/12Mon
1 stopAurigny Air
23h 10mLCY-SOU
16/12Mon
1 stopAurigny Air
4h 35mSOU-LCY
£306
9/12Mon
1 stopAurigny Air
23h 10mLCY-SOU
16/12Mon
1 stopAurigny Air
4h 35mSOU-LCY
£309
13/11Wed
1 stopBritish Airways
3h 40mLHR-SOU
20/11Wed
1 stopBritish Airways
4h 55mSOU-LHR
£379
13/11Wed
1 stopBritish Airways
3h 40mLCY-SOU
20/11Wed
1 stopBritish Airways
4h 55mSOU-LCY
£535

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One-way flight deals

directEtihad Airways
1h 55mLHR-SOU
directAccesRail
1h 55mLHR-SOU

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Everything you need to know for your flight from London to Portsmouth