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Cheap flights from London to Portsmouth
LON — LHR
9 Nov — 16 Nov1
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Everything you need to know about your flight from London to Portsmouth
Related info for your journey
Find useful and relevant information for your journey from London to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for London to Portsmouth
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portsmouth 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 London to Portsmouth by cabin class
Find flights from London to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
London and Portsmouth flights
Browse other London and Portsmouth flight options. Last updated on 10 October 2026.
Other flights from London
Browse through other flights departing from London. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
London to Portsmouth flights
Consider these flights travelling from London to Portsmouth.
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How does Cheapflights help users find flights from London to Portsmouth?
Cheapflights makes it easy to find London to Portsmouth 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 London to Portsmouth?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Portsmouth from London.
Can Cheapflights find flights from London to Portsmouth with no change fees?
Certainly. Search results for flights to Portsmouth from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from London to Portsmouth become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portsmouth from London today and book when prices fit your budget.