Cheap flights from London Gatwick Airport to Portsmouth, New Hampshire
Find flight deals from Gatwick to Portsmouth
Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Portsmouth (PSM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 October 2026.
Popular in | June |
|---|---|
Cheapest in | February |
Average price | £518 |
Best time to book a flight from Gatwick to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Gatwick with our price prediction graph.
Related info for your journey
Find useful and relevant information for your journey from Gatwick to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 Gatwick 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 New Hampshire
Book a non-stop flight to one of these other cities located in New Hampshire.
Search flights from Gatwick to Portsmouth by cabin class
Find flights from Gatwick to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Gatwick and Portsmouth flights
Browse other Gatwick and Portsmouth flight options. Last updated on 9 October 2026.
Other flights from Gatwick
Browse through other flights departing from Gatwick. Flights are based on user searches made on Cheapflights and were last updated on 9 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Gatwick to Portsmouth?
Cheapflights helps you search for flights from Gatwick to Portsmouth via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Gatwick to Portsmouth?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Gatwick to Portsmouth for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Gatwick to Portsmouth with no change fees?
Certainly. Search results for flights to Portsmouth from Gatwick 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 Gatwick to Portsmouth become cheaper?
Yes! Start tracking prices for Gatwick to Portsmouth flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.