How much does a cheap train ticket from Southampton to Portsmouth cost?

The average train ticket price from Southampton to Portsmouth is $30. The best way to find cheap train tickets from Southampton to Portsmouth is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!

How long is the trip from Southampton to Portsmouth?

A train trip between Southampton and Portsmouth is around 46m, although the fastest train will take about 29m. This is the time it takes to travel the 25 km that separates the two cities.

How many daily trains are there between Southampton and Portsmouth?

The number of trains from Southampton to Portsmouth can differ depending on the day of the week. On average, there are 19. Some trains are direct while others include transferring trains. Simplify your train trip from Southampton to Portsmouth by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from Southampton to Portsmouth?

When taking the train from Southampton to Portsmouth, you can travel comfortably and safely with South Western Railway, Great Western Railway, Southern.

Train Southampton to Portsmouth from $19

Next train departures

Next departures for Southampton to Portsmouth on November 25
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	CheapestFastest
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags
Train	7:42am	Southampton Central	40m	8:22am	Portsmouth and Southsea	No tags
Train	7:50am	Southampton Central	1h 1m	8:51am	Portsmouth and Southsea	No tags
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags

Next departures for Southampton to Portsmouth on November 26
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	CheapestFastest
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags
Train	7:42am	Southampton Central	40m	8:22am	Portsmouth and Southsea	No tags
Train	7:50am	Southampton Central	1h 1m	8:51am	Portsmouth and Southsea	No tags
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags

Next departures for Southampton to Portsmouth on November 27
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	Cheapest
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	Fastest
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags
Train	7:42am	Southampton Central	40m	8:22am	Portsmouth and Southsea	No tags
Train	7:50am	Southampton Central	1h 1m	8:51am	Portsmouth and Southsea	No tags

Next departures for Southampton to Portsmouth on November 28
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	Cheapest
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	Fastest
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags
Train	7:42am	Southampton Central	40m	8:22am	Portsmouth and Southsea	No tags
Train	7:50am	Southampton Central	1h 1m	8:51am	Portsmouth and Southsea	No tags

Next departures for Southampton to Portsmouth on November 29
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:57am	Swanwick	30m	8:27am	Portsmouth and Southsea	Cheapest
Train	7:57am	Swanwick	30m	8:27am	Portsmouth and Southsea	Fastest
Train	7:06am	Southampton Central	40m	7:46am	Portsmouth and Southsea	No tags
Train	7:28am	Southampton Central	59m	8:27am	Portsmouth and Southsea	No tags
Train	7:28am	Southampton Central	59m	8:27am	Portsmouth and Southsea	No tags

Next departures for Southampton to Portsmouth on December 1
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	Cheapest
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	Fastest
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags
Train	7:42am	Southampton Central	40m	8:22am	Portsmouth and Southsea	No tags
Train	7:50am	Southampton Central	1h 1m	8:51am	Portsmouth and Southsea	No tags

Next departures for Southampton to Portsmouth on December 2
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:50am	Swanwick	29m	8:19am	Portsmouth and Southsea	CheapestFastest
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags
Train	7:42am	Southampton Central	40m	8:22am	Portsmouth and Southsea	No tags
Train	7:50am	Southampton Central	1h 1m	8:51am	Portsmouth and Southsea	No tags
Train	7:23am	Southampton Central	56m	8:19am	Portsmouth and Southsea	No tags

Last refresh of the prices: Last Saturday at 5:24 AM GMT.

Compare 3 ways to go from Southampton to Portsmouth

We recommend carpooling

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.

1carpool per day

30mAverage Duration

25 kmDistance

1kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$11 - $13	Average Duration55m	CO₂ emissions 1kg CO₂e
Train	Average Price$21 - $51	Average Duration46m	CO₂ emissions 1kg CO₂e
Carpool	Average Price$8 - $8	Average Duration30m	CO₂ emissions 1kg CO₂e

Train companies

South Western Railway

4/524 reviews

Staff4.5

Timeliness4.1

Cleanliness4.5

Wifi3.4

Great Western Railway

4/542 reviews

Staff5

Timeliness4.7

Cleanliness4.7

Wifi4

Southern

4/534 reviews

Staff5

Timeliness5

Cleanliness5

Wifi5

GB train and bus companies:Amtrak, Trenitalia, Renfe, VIA Rail Canada, RegioJet, FlixTrain, CrossCountry

Frequently asked questions about travelling from Southampton to Portsmouth by train

How much does a cheap train ticket from Southampton to Portsmouth cost?
The average train ticket price from Southampton to Portsmouth is $30. The best way to find cheap train tickets from Southampton to Portsmouth is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!
How long is the trip from Southampton to Portsmouth?
A train trip between Southampton and Portsmouth is around 46m, although the fastest train will take about 29m. This is the time it takes to travel the 25 km that separates the two cities.
How many daily trains are there between Southampton and Portsmouth?
The number of trains from Southampton to Portsmouth can differ depending on the day of the week. On average, there are 19. Some trains are direct while others include transferring trains. Simplify your train trip from Southampton to Portsmouth by comparing and selecting the train that fits your travel style and budget on Busbud.
Which train companies travel from Southampton to Portsmouth?
When taking the train from Southampton to Portsmouth, you can travel comfortably and safely with South Western Railway, Great Western Railway, Southern.

Find cheapest prices for trains

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

Best price found

11-23

$26

11-24

$20

Today

$19

11-26

$19

11-27

$19

11-28

$19

11-29

$20

11-30

$19

The cheapest trip from Southampton to Portsmouth was searched and found on Nov 26, 2025 with a price of $19

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.

You can expect to pay from $19 to $47 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 $19 which is on 2025-11-26.