How much is the train ticket from London to Portsmouth?

The cheapest train tickets from London to Portsmouth start at $22. The average price for this train route is around $88. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.

How long is the train ride from London to Portsmouth?

The average train trip from London to Portsmouth takes 2h 3m and covers 97 km. The quickest train gets you there in 1h 22m and is operated by South Western Railway .

Which train operators serve the London to Portsmouth route?

Several major train operators serve this route, with 57 trains available per day, including services from South Western Railway , Southern .

What are the earliest and latest departure times for the train from London to Portsmouth?

The earliest train from London to Portsmouth departs at 7:00am. The latest train departs at 11:59pm.

What is the best train operator from London 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 London 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 London 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 London 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.

Train London to Portsmouth from $21

Next train departures

Next departures for London to Portsmouth on December 12
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:00pm	Waterloo	1h 34m	4:34pm	Portsmouth and Southsea	Cheapest
Train	3:00pm	Waterloo	1h 34m	4:34pm	Portsmouth and Southsea	Fastest
Train	3:59pm	Streatham	2h 17m	6:16pm	Portsmouth and Southsea	No tags
Train	3:05pm	Barnes	2h 11m	5:16pm	Portsmouth and Southsea	No tags
Train	3:59pm	Streatham	2h 17m	6:16pm	Portsmouth and Southsea	No tags

Next departures for London to Portsmouth on December 13
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:52am	Clapham Junction	1h 52m	9:44am	Portsmouth and Southsea	Cheapest
Train	7:30am	Waterloo	1h 29m	8:59am	Portsmouth and Southsea	Fastest
Train	7:35am	Barnes	1h 58m	9:33am	Portsmouth and Southsea	No tags
Train	7:12am	Clapham Junction	2h 5m	9:17am	Portsmouth and Southsea	No tags
Train	7:35am	Barnes	1h 58m	9:33am	Portsmouth and Southsea	No tags

Next departures for London to Portsmouth on December 14
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:03pm	Waterloo	1h 52m	4:55pm	Portsmouth and Southsea	Cheapest
Train	3:37pm	Clapham Junction	1h 22m	4:59pm	Portsmouth and Southsea	Fastest
Train	8:26am	Streatham	2h 15m	10:41am	Portsmouth and Southsea	No tags
Train	7:51am	Barnes	2h 9m	10:00am	Portsmouth and Southsea	No tags
Train	8:26am	Streatham	2h 15m	10:41am	Portsmouth and Southsea	No tags

Next departures for London to Portsmouth on December 15
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:12pm	Clapham Junction	2h 7m	5:19pm	Portsmouth and Southsea	Cheapest
Train	7:00am	Waterloo	1h 30m	8:30am	Portsmouth and Southsea	Fastest
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags
Train	7:04am	Barnes	2h	9:04am	Portsmouth and Southsea	No tags
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags

Next departures for London to Portsmouth on December 16
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:12pm	Clapham Junction	2h 7m	5:19pm	Portsmouth and Southsea	Cheapest
Train	7:00am	Waterloo	1h 30m	8:30am	Portsmouth and Southsea	Fastest
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags
Train	7:04am	Barnes	2h	9:04am	Portsmouth and Southsea	No tags
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags

Next departures for London to Portsmouth on December 17
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:35pm	Victoria Rail Station	2h 8m	5:43pm	Portsmouth Harbour	Cheapest
Train	7:00am	Waterloo	1h 30m	8:30am	Portsmouth and Southsea	Fastest
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags
Train	7:04am	Barnes	2h	9:04am	Portsmouth and Southsea	No tags
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags

Next departures for London to Portsmouth on December 18
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:00pm	Waterloo	1h 30m	4:30pm	Portsmouth and Southsea	Cheapest
Train	7:00am	Waterloo	1h 30m	8:30am	Portsmouth and Southsea	Fastest
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags
Train	7:04am	Barnes	2h	9:04am	Portsmouth and Southsea	No tags
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags

Next departures for London to Portsmouth on December 19
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	9:29am	Streatham	2h 8m	11:37am	Portsmouth and Southsea	Cheapest
Train	7:00am	Waterloo	1h 30m	8:30am	Portsmouth and Southsea	Fastest
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags
Train	7:04am	Barnes	2h	9:04am	Portsmouth and Southsea	No tags
Train	8:29am	Streatham	2h 8m	10:37am	Portsmouth and Southsea	No tags

Last refresh of the prices: Yesterday at 3:53 PM GMT.

Compare 3 ways to go from London 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 2 hours 20 minutes, and with fares starting at just $12, it presents an excellent value for a comfortable ride.

1carpool per day

2h 20mAverage Duration

102 kmDistance

4kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$9 - $53	Average Duration2h 11m	CO₂ emissions 3kg CO₂e
Train	Average Price$22 - $185	Average Duration2h 3m	CO₂ emissions 2kg CO₂e
Carpool	Average Price$12 - $12	Average Duration2h 20m	CO₂ emissions 4kg CO₂e

Train companies

South Western Railway

4/525 reviews

Staff4.5

Timeliness4.1

Cleanliness4.5

Wifi3.4

Southern

4/534 reviews

Staff5

Timeliness5

Cleanliness5

Wifi5

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

Frequently asked questions about travelling from London 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 London to Portsmouth?
The cheapest train tickets from London to Portsmouth start at $22. The average price for this train route is around $88. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.
How long is the train ride from London to Portsmouth?
The average train trip from London to Portsmouth takes 2h 3m and covers 97 km. The quickest train gets you there in 1h 22m and is operated by South Western Railway.
Which train operators serve the London to Portsmouth route?
Several major train operators serve this route, with 57 trains available per day, including services from South Western Railway, Southern.
What are the earliest and latest departure times for the train from London to Portsmouth?
The earliest train from London to Portsmouth departs at 7:00am. The latest train departs at 11:59pm.
What is the best train operator from London 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 London 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 London 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 London 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.

Best price found

12-10

$41

12-11

$37

Today

$37

12-13

$33

12-14

$33

12-15

$31

12-16

$31

12-17

$26

The cheapest trip from London to Portsmouth was searched and found on Dec 17, 2025 with a price of $26

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from London to Portsmouth, as early as possible.

You can expect to pay from $26 to $177 for a train ticket from London to Portsmouth based on the last 2 days. You can expect to find the cheapest price for the trip at $26 which is on 2025-12-17.

Usually South Western Railway will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.