Find cheap flights from London to Portsmouth from £49

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.

There are no direct flights covering the 65 miles separating London and Portsmouth but indirect flights take around 4h 15m.

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

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.

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.

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.

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.

In the last 72 hours, the cheapest one-way ticket between London and Portsmouth found on KAYAK was with easyJet for £49. KLM offered a return connection from £200 and easyJet from £207.