Next train departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Train | Swanwick | Portsmouth and Southsea | CheapestFastest | ||||
 | Train | Southampton Central | Portsmouth and Southsea | No tags | ||||
| Train | Southampton Central | Portsmouth and Southsea | No tags | ||||
| Train | Southampton Central | Portsmouth and Southsea | No tags | ||||
| Train | Swanwick | Portsmouth and Southsea | No tags |
Last refresh of the prices: Today at 5:39 PM GMT.
Compare 3 ways to go from Southampton to Portsmouth
Among the sustainable travel choices, the carpool stands out as a good way to reach Portsmouth. The journey takes about 30 minutes, and with fares starting at just $8, it presents an excellent value for a comfortable ride.
Train companies
Frequently asked questions about travelling from Southampton to Portsmouth by train
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the train ticket from Southampton to Portsmouth?
The cheapest train tickets from Southampton to Portsmouth start at $20. The average price for this train route is around $30. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.
How long is the train ride from Southampton to Portsmouth?
The average train trip from Southampton to Portsmouth takes 46m and covers 23 km. The quickest train gets you there in 29m and is operated by South Western Railway.
Which train operators serve the Southampton to Portsmouth route?
Several major train operators serve this route, with 22 trains available per day, including services from South Western Railway, Great Western Railway, Southern.
What are the earliest and latest departure times for the train from Southampton to Portsmouth?
The earliest train from Southampton to Portsmouth departs at 7:00am. The latest train departs at 11:59pm.
What is the best train operator from Southampton to Portsmouth?
According to Busbud customers, the highest-rated train operator on this route is South Western Railway, with an average rating of 4.2 out of 5 stars based on 25 reviews.
Which train operator has the best Wi-Fi from Southampton to Portsmouth?
Based on reviews on Busbud, the train operator Southern has the best Wi-Fi rating with a score of 5.0.
Which train operator has the best on-time performance from Southampton to Portsmouth?
According to Busbud traveller reviews, the most punctual train operator on this route is Southern, with a punctuality rating of 5.0 out of 5 stars.
Which train operator has the cleanest trains from Southampton to Portsmouth?
According to Busbud traveller reviews, the train operator with the cleanest trains on this route is Southern, with a cleanliness rating of 5.0 out of 5 stars.
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Southampton to Portsmouth was searched and found on Dec 9, 2025 with a price of $19To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Southampton to Portsmouth, as early as possible.
You can expect to pay from $19 to $48 for a train ticket from Southampton to Portsmouth based on the last 2 days. You can expect to find the cheapest price for the trip at $20 which is on 2025-12-10.
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