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

The average train ticket price from Portsmouth to London is $61. The best way to find cheap train tickets from Portsmouth to London 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 Portsmouth to London?

A train trip between Portsmouth and London is around 2h 7m, although the fastest train will take about 1h 27m. This is the time it takes to travel the 104 km that separates the two cities.

How many daily trains are there between Portsmouth and London?

The number of trains from Portsmouth to London can differ depending on the day of the week. On average, there are 53. Some trains are direct while others include transferring trains. Simplify your train trip from Portsmouth to London by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from Portsmouth to London?

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

Train Portsmouth to London from $17

Next train departures

Next departures for Portsmouth to London on November 29
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

Next departures for Portsmouth to London on November 30
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	5:37pm	Portsmouth and Southsea	1h 58m	7:35pm	Waterloo	Cheapest
Train	8:37am	Portsmouth and Southsea	1h 48m	10:25am	Clapham Junction	Fastest
Train	7:37am	Portsmouth and Southsea	1h 58m	9:35am	Waterloo	No tags
Train	7:52am	Portsmouth and Southsea	2h 34m	10:26am	Victoria Rail Station	No tags
Train	7:37am	Portsmouth and Southsea	1h 58m	9:35am	Waterloo	No tags

Next departures for Portsmouth to London on December 1
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:03pm	Portsmouth and Southsea	2h 4m	5:07pm	Clapham Junction	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 2
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 3
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 4
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 5
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

Last refresh of the prices: Yesterday at 6:21 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 2kg CO₂e
Train	Average Price$18 - $390	Average Duration2h 7m	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

How much does a cheap train ticket from Portsmouth to London cost?
The average train ticket price from Portsmouth to London is $61. The best way to find cheap train tickets from Portsmouth to London 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 Portsmouth to London?
A train trip between Portsmouth and London is around 2h 7m, although the fastest train will take about 1h 27m. This is the time it takes to travel the 104 km that separates the two cities.
How many daily trains are there between Portsmouth and London?
The number of trains from Portsmouth to London can differ depending on the day of the week. On average, there are 53. Some trains are direct while others include transferring trains. Simplify your train trip from Portsmouth to London by comparing and selecting the train that fits your travel style and budget on Busbud.
Which train companies travel from Portsmouth to London?
When taking the train from Portsmouth to London, you can travel comfortably and safely with South 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

11-27

$51

11-28

$41

Today

$33

11-30

$33

12-01

$17

12-02

$17

12-03

$17

12-04

$21

The cheapest trip from Portsmouth to London was searched and found on Dec 2, 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 $371 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 2025-12-02.

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.