How much is the train ticket from Portsmouth to London?

The cheapest train tickets from Portsmouth to London start at $18. The average price for this train route is around $60. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.

How long is the train ride from Portsmouth to London?

The average train trip from Portsmouth to London takes 2h 5m and covers 100 km. The quickest train gets you there in 1h 27m and is operated by South Western Railway .

Which train operators serve the Portsmouth to London route?

Several major train operators serve this route, with 54 trains available per day, including services from South Western Railway , Southern .

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

The earliest train from Portsmouth to London departs at 7:00am. The latest train departs at 10:37pm.

What is the best train operator from Portsmouth to London?

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 Portsmouth to London?

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 Portsmouth to London?

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 Portsmouth to London?

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 Portsmouth to London from $16

Next train departures

Next departures for Portsmouth to London on December 6
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:35pm	Portsmouth and Southsea	1h 56m	5:31pm	Clapham Junction	Cheapest
Train	3:20pm	Portsmouth and Southsea	1h 32m	4:52pm	Waterloo	Fastest
Train	7:00am	Portsmouth and Southsea	2h 13m	9:13am	Waterloo	No tags
Train	7:04am	Portsmouth Harbour	2h 11m	9:15am	Victoria Rail Station	No tags
Train	7:00am	Portsmouth and Southsea	2h 13m	9:13am	Waterloo	No tags

Next departures for Portsmouth to London on December 7
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	5:37pm	Portsmouth and Southsea	2h 2m	7:39pm	Barnes	Cheapest
Train	7:37am	Portsmouth and Southsea	1h 27m	9:04am	Clapham Junction	Fastest
Train	7:17am	Portsmouth Harbour	2h 23m	9:40am	Waterloo	No tags
Train	7:52am	Portsmouth and Southsea	2h 27m	10:19am	Victoria Rail Station	No tags
Train	7:17am	Portsmouth Harbour	2h 23m	9:40am	Waterloo	No tags

Next departures for Portsmouth to London on December 8
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	5:32pm	Portsmouth and Southsea	2h 18m	7:50pm	Battersea Park	Cheapest
Train	3:20pm	Portsmouth and Southsea	1h 31m	4:51pm	Waterloo	Fastest
Train	7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags
Train	8:28am	Portsmouth Harbour	2h 33m	11:01am	Wandsworth	No tags
Train	7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags

Next departures for Portsmouth to London on December 9
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	4:03pm	Portsmouth and Southsea	2h 12m	6:15pm	Victoria Rail Station	Cheapest
Train	3:20pm	Portsmouth and Southsea	1h 31m	4:51pm	Waterloo	Fastest
Train	7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags
Train	8:28am	Portsmouth Harbour	2h 33m	11:01am	Wandsworth	No tags
Train	7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags

Next departures for Portsmouth to London on December 10
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:03pm	Portsmouth and Southsea	2h 12m	5:15pm	Victoria Rail Station	Cheapest
Train	3:20pm	Portsmouth and Southsea	1h 32m	4:52pm	Waterloo	Fastest
Train	7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags
Train	8:28am	Portsmouth Harbour	2h 33m	11:01am	Wandsworth	No tags
Train	7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags

Next departures for Portsmouth to London on December 11
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:03pm	Portsmouth and Southsea	2h 12m	5:15pm	Victoria Rail Station	Cheapest
Train	3:20pm	Portsmouth and Southsea	1h 31m	4:51pm	Waterloo	Fastest
Train	7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags
Train	8:28am	Portsmouth Harbour	2h 33m	11:01am	Wandsworth	No tags
Train	7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags

Next departures for Portsmouth to London on December 13
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:35pm	Portsmouth and Southsea	1h 57m	5:32pm	Clapham Junction	Cheapest
Train	7:21am	Portsmouth and Southsea	1h 31m	8:52am	Waterloo	Fastest
Train	7:08am	Portsmouth and Southsea	2h 19m	9:27am	Wandsworth	No tags
Train	7:00am	Portsmouth and Southsea	2h 4m	9:04am	Waterloo	No tags
Train	7:08am	Portsmouth and Southsea	2h 19m	9:27am	Wandsworth	No tags

Last refresh of the prices: Yesterday at 2:44 PM GMT.

Compare 3 ways to go from Portsmouth to London

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as a good way to reach London. The journey takes about 1 hour 40 minutes, and with fares starting at just $18, it presents an excellent value for a comfortable ride.

1carpool per day

1h 40mAverage Duration

102 kmDistance

4kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$9 - $56	Average Duration2h 31m	CO₂ emissions 3kg CO₂e
Train	Average Price$18 - $385	Average Duration2h 5m	CO₂ emissions 2kg CO₂e
Carpool	Average Price$18 - $18	Average Duration1h 40m	CO₂ emissions 4kg CO₂e

Train companies

South Western Railway

4/525 reviews

Staff4.5

Timeliness4.1

Cleanliness4.5

Wifi3.4

Users have reported a smooth service with comfortable trains and effective heating. However, some feedback indicates that the staff at Portsmouth ticket office could be more welcoming, as there were concerns about communication when purchasing tickets through agencies.

South Western Railway Portsmouth London recent customer reviews

The staff at Portsmouth ticket office were quite unfriendly and they said that buying tickets through agencies is very unreliable and there is no communication between yourselves and them.

Karen M.

September 17, 2022

Smooth service, comfortable train with good heating.

Panagiota Lili T.

December 9, 2024

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 Portsmouth to London 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 Portsmouth to London?
The cheapest train tickets from Portsmouth to London start at $18. The average price for this train route is around $60. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.
How long is the train ride from Portsmouth to London?
The average train trip from Portsmouth to London takes 2h 5m and covers 100 km. The quickest train gets you there in 1h 27m and is operated by South Western Railway.
Which train operators serve the Portsmouth to London route?
Several major train operators serve this route, with 54 trains available per day, including services from South Western Railway, Southern.
What are the earliest and latest departure times for the train from Portsmouth to London?
The earliest train from Portsmouth to London departs at 7:00am. The latest train departs at 10:37pm.
What is the best train operator from Portsmouth to London?
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 Portsmouth to London?
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 Portsmouth to London?
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 Portsmouth to London?
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

12-04

$41

12-05

$41

Today

$36

12-07

$33

12-08

$17

12-09

$17

12-10

$21

12-11

$21

The cheapest trip from Portsmouth to London was searched and found on Dec 9, 2025 with a price of $17

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

You can expect to pay from $17 to $370 for a train ticket from Portsmouth to London based on the last 2 days. You can expect to find the cheapest price for the trip at $17 which is on 2025-12-09.

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.