Next train departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Train | Gatwick Airport (LGW) South Terminal | Portsmouth and Southsea | Cheapest | ||||
| Train | Gatwick Airport (LGW) South Terminal | Portsmouth and Southsea | Fastest | ||||
| Train | Gatwick Airport (LGW) South Terminal | Portsmouth and Southsea | No tags | ||||
| Train | Gatwick Airport (LGW) South Terminal | Portsmouth and Southsea | No tags | ||||
| Train | Gatwick Airport (LGW) South Terminal | Portsmouth and Southsea | No tags |
Last refresh of the prices: Today at 00:04 GMT.
Compare 2 ways to travel from Gatwick to Portsmouth
Among the sustainable travel choices, the bus stands out as a good way to reach Portsmouth. The journey takes about 1 hour 50 minutes and with fares starting at just £7, it presents an excellent value for a comfortable ride.
Train Companies
Based on 34 reviews, the company was rated 4.2 stars on Busbud. Travellers were especially satisfied with the staff and the timeliness but often complained with the ticket access. Southern ticket prices on this trip start at £12
Southern Gatwick Portsmouth recent customer reviews
Only problem we had was inability to go through gate initially. We were early, didn’t realize that ticket wouldn’t scan and open gate until about 20 min before departure. After trying repeatedly to enter, we finally asked attendant who told us to wait 10 minutes and retry. Suggest noting on ticket that departure platforms can be crowded with trains every few minutes, so tickets don’t allow admission until 20 minutes (?) before departure.
Douglas S.
Frequently asked questions about travelling from Gatwick to Portsmouth by train
Please note that timetables, routes, or operator details shown here may be updated or vary at the time of your journey.
How much does a train ticket cost from Gatwick to Portsmouth?
The cheapest train tickets from Gatwick to Portsmouth start from £12. The average price for this train route is around £25. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.
How long is the train journey from Gatwick to Portsmouth?
The average train journey time from Gatwick to Portsmouth is 1h 37m, covering a distance of 48 miles. The fastest train gets you there in 1h 28m and is operated by Southern.
Which train operators serve the Gatwick to Portsmouth route?
Several major train operators run on this route with 11 trains available per day.
What are the earliest and latest departure times for the train from Gatwick to Portsmouth?
The earliest train from Gatwick to Portsmouth departs at 07:11. And the latest train departs at 20:15.
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Gatwick to Portsmouth was searched and found on 9 Dec 2025 with a price of £14To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Gatwick to Portsmouth as early as possible.
You can expect to pay from £14 to £37 for a train ticket from Gatwick to Portsmouth based on the last 2 days. You can expect to find the cheapest price for the trip at £14, which is on 2025-12-09.
