Cheap flights from London Gatwick Airport to Portsmouth from £142
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from Gatwick to Portsmouth
Cheapest flights from Gatwick to PortsmouthExplore the most affordable flight options available from Gatwick to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2025.
Explore the most affordable flight options available from Gatwick to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Gatwick to Portsmouth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 April 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Portsmouth that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonSouthampton
LGW - SOU
LGWSOU
London Gatwick
Wed 7/5
15:35-16:35
1 stop25h 00m
Southampton Eastleigh
Thu 8/5
20:00-08:20
1 stop12h 20m
LondonSouthampton
LGW - SOU
LGWSOU
London Gatwick
Mon 12/5
18:25-07:30
1 stop13h 05m
Southampton Eastleigh
Wed 14/5
19:50-07:55
1 stop12h 05m
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.
Cheapflights Insights
Everything you need to know about your flight from London Gatwick Airport to Portsmouth
What is the cheapest time of day to fly from LGW to P0R?
Find hourly flight availability from Gatwick to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 April 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Gatwick Airport to Portsmouth as you normally would.
Rainfall in Portsmouth by month
Plan your trip to Portsmouth by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.
Temperature in Portsmouth by month
Plan your trip to Portsmouth by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).
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.
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, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!