£102+ Cheap flights to Portsmouth
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Portsmouth in 2025
Find the latest flights to Portsmouth in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 22 August 2025.
Find flight deals to Portsmouth
Cheapest flights to PortsmouthExplore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 22 August 2025.
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 22 August 2025.
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Fly from
Route
Depart
Return
Price
LondonSouthampton
LTN - SOU
LTNSOU
London Luton
Sat 11/10
07:05-14:50
1 stop7h 45m
Southampton Eastleigh
Sun 12/10
12:00-23:20
1 stop11h 20m
LondonSouthampton
LGW - SOU
LGWSOU
London Gatwick
Sat 11/10
07:30-14:50
1 stop7h 20m
Southampton Eastleigh
Sat 18/10
15:20-08:30
1 stop17h 10m
LondonSouthampton
STN - SOU
STNSOU
London Stansted
Tue 23/9
21:30-08:30
1 stop11h 00m
Southampton Eastleigh
Thu 25/9
15:05-21:20
1 stop6h 15m
LondonSouthampton
STN - SOU
STNSOU
London Stansted
Sat 11/10
08:40-14:50
1 stop6h 10m
Southampton Eastleigh
Sun 12/10
12:00-00:50
1 stop12h 50m
LondonSouthampton
LGW - SOU
LGWSOU
London Gatwick
Mon 6/10
06:15-11:20
1 stop5h 05m
Southampton Eastleigh
Sun 12/10
12:00-07:40
1 stop19h 40m
LondonSouthampton
LGW - SOU
LGWSOU
London Gatwick
Sat 11/10
07:30-14:50
1 stop7h 20m
Southampton Eastleigh
Sun 12/10
12:00-21:40
1 stop9h 40m
LondonSouthampton
STN - SOU
STNSOU
London Stansted
Sat 11/10
08:40-14:50
1 stop6h 10m
Southampton Eastleigh
Sat 18/10
15:20-20:55
1 stop5h 35m
LondonSouthampton
STN - SOU
STNSOU
London Stansted
Tue 21/10
21:30-08:30
1 stop11h 00m
Southampton Eastleigh
Thu 23/10
15:05-21:20
1 stop6h 15m
LondonSouthampton
LTN - SOU
LTNSOU
London Luton
Tue 21/10
21:10-08:30
1 stop11h 20m
Southampton Eastleigh
Thu 23/10
15:05-22:10
1 stop7h 05m
LondonSouthampton
LTN - SOU
LTNSOU
London Luton
Mon 13/10
21:55-08:15
1 stop10h 20m
Southampton Eastleigh
Mon 20/10
20:30-08:45
1 stop12h 15m
Best time to book a flight to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Portsmouth
How long is the flight to Portsmouth?
On average, a flight from London to Portsmouth takes 7 hours 43 minutes. Flights to Portsmouth from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.
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).
FAQs about flying to Portsmouth
Getting around Portsmouth
The are several excellent local bus services which cover the city centre, Portsea Island, Southsea and numerous destinations in and around the city. There are good local taxi firms, and you’ll also find licensed taxis at the airport and in the city centre which can simply be flagged down on the street.
Getting from the Airport to the City
Travellers booking flights to Portsmouth will most likely fly to Southampton Airport (SOU), which is the closest airport to the city, just 20 miles (32 km) from the centre of Portsmouth. Take the train from Southampton Airport Parkway and change to a Portsmouth bound service at Southampton Central or at Eastleigh. There are also taxis available from outside the terminal, and set fares to the city are not overly expensive.
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