Trains tickets from Southampton to Portsmouth

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Compare 3 ways to go from Southampton to Portsmouth.

Bus
Average Price$9 - $9Average Duration55m
1kg CO₂e5 out of 5 stars
Most eco-friendly
Train
Average Price$15 - $37Average Duration45m
1kg CO₂e5 out of 5 stars
Carpool
Average Price$4 - $4Average Duration30m
1kg CO₂e4 out of 5 stars
CheapestFastest
busbud logoBusbud recommends carpooling from Southampton to Portsmouth

Among the sustainable travel choices, the carpool stands out as the good way to reach Portsmouth. The journey takes about 30 minutes and with fares starting at just $4, it presents an excellent value for a comfortable ride.

1carpool per day
30mAverage Duration
$4Cheapest ticket
1kgCO₂ emissions

Train Southampton to Portsmouth: Trip Overview

Please note, this information is subject to change.

Average ticket price$22
Average train trip duration45m
Number of daily trains17
Earliest train departure6:55am
Distance17 miles (26 km)
Latest train departure8:50pm

Southampton to Portsmouth Train

Busbud helps you find a train from Southampton to Portsmouth. Get the best fare and schedule, book a round trip ticket or find trains with WiFi and electrical outlets.

We make sure you can find a train service from Southampton to Portsmouth from the most reliable train companies operating this trip.

Whether it is train tickets or first class train tickets going to Portsmouth from Southampton, we help you find what you're looking for based on how much of a budget you have.

Frequently asked questions for your trip Southampton - Portsmouth

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found
05/30
$14
05/31
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busbud logoThe cheapest trip from Southampton to Portsmouth was searched and found on May 30, 2025 with a price of $14

To 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.

About Train Travel

Train Travel Tips

There are many train stations in the world, check it station pages on Busbud to get all information you need.

Regional train? High-speed train? Whichever train to Portsmouth you take, you’ll help reduce the environmental impact and carbon footprint of your trip. As you watch the landscapes unfold before your eyes, you can tell yourself that with this choice, you are making sure they remain protected.

By choosing the train between Southampton and Portsmouth, you emit up to 30 times less CO2 than for the same journey made by plane or car!

Tune out to the fine sounds of your best music playlist on your train trip from Southampton to Portsmouth while indulging in miles on end of beautiful scenic views.

Did you know?

The magnetic levitation train (Maglev for short) is currently the fastest train in the world. With a speed of 603 km/ h, it is closely followed by the French high-speed train (574.8 km / h) which remains in 2020, the fastest train to date

One of the deepest train stations in the world is in Kiev. Located at a depth of 105 m, it was designed in this way to serve as a shelter in the event of an attack. The second deepest station is in China. Badaling station is located 60 m under the Great Wall of China!

Some trains in Sweden can recover more than a fifth of the energy they use by braking. This is especially true with ore trains as they descend from Narvik to Kiruna.

Will you be returning to Southampton by train?

Train from Portsmouth to Southampton

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