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

The average train ticket price from Portsmouth to London is $36. The best way to find 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 train trip from Portsmouth to London?

A train trip between Portsmouth and London is around 2h 4m, although the fastest train will take about 1h 22m. This is the time it takes to travel the 65 miles 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 39. Some trains are direct while others have layovers. 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.

What are the best sights and things to do in London?

Once in London, you can exploring the city. The top sights and things to do are Madame Tussauds London, Kew Gardens, London Mithraeum, The British Museum, St Paul's Cathedral.

Train Portsmouth to London from $12 | Refundable Tickets

TomorrowAug 4

from $16

TueAug 5

from $16

WedAug 6

from $19

ThuAug 7

from $16

FriAug 8

from $16

SatAug 9

from $23

SunAug 10

from $24

MonAug 11

Trains leaving tomorrow

One passenger / one way

This trip is recommended because it is: Cheapest
Departure time: August 4 at 5:33pm
Departure city: Portsmouth
Departure location: Portsmouth and Southsea
Arrival time: August 4 at 7:50pm
Destination city: London
Destination location: Battersea Park
Operated by: Southern
Vehicle: TrainDuration: 2h 17m
This trip is recommended because it is: Fastest
Departure time: August 4 at 3:20pm
Departure city: Portsmouth
Departure location: Portsmouth and Southsea
Arrival time: August 4 at 4:51pm
Destination city: London
Destination location: Waterloo
Operated by: South Western Railway
Vehicle: TrainDuration: 1h 31m
Departure time: August 4 at 7:18am
Departure city: Portsmouth
Departure location: Portsmouth and Southsea
Arrival time: August 4 at 9:19am
Destination city: London
Destination location: Wandsworth Town
Operated by: South Western Railway
Vehicle: TrainDuration: 2h 1m
Departure time: August 4 at 7:32am
Departure city: Portsmouth
Departure location: Portsmouth and Southsea
Arrival time: August 4 at 9:57am
Destination city: London
Destination location: Wandsworth
Operated by: Southern
Vehicle: TrainDuration: 2h 25m
Departure time: August 4 at 7:18am
Departure city: Portsmouth
Departure location: Portsmouth and Southsea
Arrival time: August 4 at 9:19am
Destination city: London
Destination location: Wandsworth Town
Operated by: South Western Railway
Vehicle: TrainDuration: 2h 1m

Accepted payments

Compare 3 ways to go from Portsmouth to London.

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$6 - $36	Average Duration2h 30m	CO₂ emissions 2kg CO₂e5 out of 5 stars	CheapestMost eco-friendly
Train	Average Price$13 - $281	Average Duration2h 4m	CO₂ emissions 2kg CO₂e5 out of 5 stars
Carpool	Average Price$10 - $10	Average Duration1h 40m	CO₂ emissions 4kg CO₂e4 out of 5 stars	Fastest

Busbud recommends carpooling from Portsmouth to London

Among the sustainable travel choices, the carpool stands out as the good way to reach London. The journey takes about 1 hour 40 minutes and with fares starting at just $10, it presents an excellent value for a comfortable ride.

1carpool per day

1h 40mAverage Duration

$10Cheapest ticket

4kgCO₂ emissions

Train Portsmouth to London: Trip Overview

Please note, this information is subject to change.

Average ticket price$36

Average train trip duration2h 4m

Number of daily trains39

Earliest train departure6:55am

Distance58 miles (93 km)

Latest train departure10:38pm

Train Companies

South Western Railway

4.5/523 reviews

Staff4.4

Timeliness4

Cleanliness4.4

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

Train and bus companies in GB:RegioJet, FlixTrain, CrossCountry, Great Western Railway, Northern, Transpennine Express, London North Eastern Railway

Portsmouth to London Train

With Busbud, comparing and booking tickets for a train from Portsmouth to London is a breeze. Browse through an extensive selection of train fares and train schedules to find the best deals.

We make sure you can find a train service from Portsmouth to London from the most reliable train companies operating this trip.

Whether it is train tickets or first class train tickets going to London from Portsmouth, we help you find what you're looking for based on how much of a budget you have.

Frequently asked questions for your trip Portsmouth - London

How much does a train ticket from Portsmouth to London cost?
How long is the train trip from Portsmouth to London?
How many daily trains are there between Portsmouth and London?
Which train companies travel from Portsmouth to London?
What are the best sights and things to do in London?

Find cheapest prices for trains

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

Best price found

08/01

$58

08/02

$33

Today

$60

08/04

$15

08/05

$15

08/06

$18

08/07

$15

08/08

$15

The cheapest trip from Portsmouth to London was searched and found on Aug 7, 2025 with a price of $15

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 $15 to $262 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 $15 which is on 2025-08-07.

Usually RDG_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.

About Train Travel

Train Travel Tips

Taking the fastest trains allows you to travel at speeds greater than 300 km/h. Taking a trip from Portsmouth to London is not only much quicker but more comfortable too! You can usually travel directly to the city centre and save time while you're at it.

Regional train? High-speed train? Whichever train to London you take, you’ll help reduce the environmental impact and carbon footprint of your trip. As you watch the landscapes unfold before your eyes, you can tell yourself that with this choice, you are making sure they remain protected.

By choosing the train between Portsmouth and London, you emit up to 30 times less CO2 than for the same journey made by plane or car!

Make a music playlist for your train ride from Portsmouth to London, and enjoy the scenery to tunes from your own personal soundtrack.

Did you know?

Railway companies played a major role as early as 1883 in the use of time zones as we know them today.

The longest train journey in the world is between Europe and Asia. This long journey starts from Porto in Portugal and crosses the whole European continent to reach Hanoi in Vietnam in 12 days while traveling more than 17,000 km.

The first high-speed train line was inaugurated in 1964, in Japan, to connect Tokyo with Osaka. It was during the Olympics that the first passengers traveled aboard the Shinkansen at a speed of 210 km / h.

Will you be returning to Portsmouth by train?

Train from London to Portsmouth

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Trains tickets from Portsmouth to London

Trains leaving tomorrow

One passenger / one way

One passenger / one way

One passenger / one way

One passenger / one way

One passenger / one way

One passenger / one way

One passenger / one way

Compare 3 ways to go from Portsmouth to London.

Train Portsmouth to London: Trip Overview

Train Companies

South Western Railway Portsmouth London recent customer reviews

Portsmouth to London Train

Frequently asked questions for your trip Portsmouth - London

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

How long is the train trip from Portsmouth to London?

How many daily trains are there between Portsmouth and London?

Which train companies travel from Portsmouth to London?

What are the best sights and things to do in London?

Find cheapest prices for trains

About Train Travel

Train Travel Tips

Did you know?

Will you be returning to Portsmouth by train?

Top Traveled Train Routes

Why choose Busbud?

The Best Way To Book Bus and Train Tickets

People from around the world trust Busbud

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Trains Leaving from Portsmouth

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