How much is the train ticket from London to Portsmouth?

The cheapest train tickets from London to Portsmouth start from $15. The average price for this train route is around $62. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.

How long is the train journey from London to Portsmouth?

The average train ride duration from London to Portsmouth is 2h 3m, covering a distance of 61 miles (97 km). The quickest train can get you there in 1h 22m and is operated by South Western Railway .

Which train operators service the London to Portsmouth route?

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

What is the earliest and latest departure time for the train from London to Portsmouth?

The earliest train departs from London to Portsmouth at 7:00am. And 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 most timely service from London to Portsmouth?

According to Busbud traveller reviews, the most timely 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 $15

Next train departures

Next departures for London to Portsmouth on December 11
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:45pm	Waterloo	1h 59m	5:44pm	Portsmouth and Southsea	Cheapest
Train	8:00am	Waterloo	1h 32m	9:32am	Portsmouth and Southsea	Fastest
Train	8:29am	Streatham	2h 9m	10:38am	Portsmouth and Southsea	No tags
Train	7:04am	Barnes	2h	9:04am	Portsmouth and Southsea	No tags
Train	8:29am	Streatham	2h 9m	10:38am	Portsmouth and Southsea	No tags

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	8:00am	Waterloo	1h 32m	9:32am	Portsmouth and Southsea	Fastest
Train	8:29am	Streatham	2h 9m	10:38am	Portsmouth and Southsea	No tags
Train	7:04am	Barnes	2h	9:04am	Portsmouth and Southsea	No tags
Train	8:29am	Streatham	2h 9m	10:38am	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	8:00am	Waterloo	1h 33m	9:33am	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

Last refresh of the prices: Today at 9:13 PM GMT.

Compare 3 ways to go from London to Portsmouth

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as the good way to reach Portsmouth. The journey takes about 2 hours 20 minutes and with fares starting at just $8, it presents an excellent value for a comfortable ride.

1carpool per day

2h 20mAverage Duration

64 milesDistance

4kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$6 - $38	Average Duration2h 11m	CO₂ emissions 3kg CO₂e
Train	Average Price$15 - $131	Average Duration2h 3m	CO₂ emissions 2kg CO₂e
Carpool	Average Price$8 - $8	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

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

Frequently asked questions about traveling 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 from $15. The average price for this train route is around $62. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the train journey from London to Portsmouth?
The average train ride duration from London to Portsmouth is 2h 3m, covering a distance of 61 miles (97 km). The quickest train can get you there in 1h 22m and is operated by South Western Railway.
Which train operators service the London to Portsmouth route?
Several major train operators operate on this route with 57 trains available per day, including services from South Western Railway, Southern.
What is the earliest and latest departure time for the train from London to Portsmouth?
The earliest train departs from London to Portsmouth at 7:00am. And 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 most timely service from London to Portsmouth?
According to Busbud traveller reviews, the most timely 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

12/08

$46

12/09

$39

Today

$29

12/11

$26

12/12

$26

12/13

$23

12/14

$23

12/15

$22

The cheapest trip from London to Portsmouth was searched and found on Dec 15, 2025 with a price of $22

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 $22 to $125 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 $22 which is on 2025-12-15.