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Train route

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Cheap train tickets

Cardiff to Portsmouth train prices and times

Looking to travel from Cardiff to Portsmouth? You can buy train tickets with Trip.com for as low as £13.00, with average prices for this route around £14.00.

To get the best deals, we' d recommend buying in advance and researching alternatives such as split tickets.

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Fri, Apr 4
From £13.00
Sat, Apr 5
From £13.00
Sun, Apr 6
From £13.00
Mon, Apr 7
Tue, Apr 8
Wed, Apr 9
Thu, Apr 10

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Departs	Arrives	Duration	Find Tickets
05:07 Cardiff Central	09:12 Portsmouth & Southsea	4h 5m, No direct	Find Tickets
06:28 Cardiff Central	09:48 Portsmouth & Southsea	3h 20m, Direct	Find Tickets
06:51 Cardiff Central	10:12 Portsmouth & Southsea	3h 21m, No direct	Find Tickets
07:27 Cardiff Central	10:48 Portsmouth & Southsea	3h 21m, Direct	Find Tickets
08:27 Cardiff Central	11:47 Portsmouth & Southsea	3h 20m, Direct	Find Tickets
08:37 Cardiff Central	12:43 Paris	4h 6m, No direct	Find Tickets View More Trains

Cardiff to Portsmouth train route details

First train

05:07

Last train

23:30

Departure station

Cardiff

Arrival station

Portsmouth

Journey time

3h 16m

Distance

102 miles

Price

£13.00*

Train Operators

CrossCountry, Great Western Railway, South Western Railway

How to book cheap train tickets from Cardiff to Portsmouth

Travelling in off-peak train times

Taking advantage of Off-Peak train tickets is another effective way to save on your train journey from Cardiff to Portsmouth. These tickets are generally cheaper and can be used during quieter periods, typically outside of morning (06:30-09:30) and evening (16:00-19:00) rush hours on weekdays.

Using the Railcard for 1/3 off

With a Railcard, you can save up to 1/3 on most rail fares. There are different types of Railcards available, such as the 16–25 Railcard, the Family & Friends Railcard, and the Senior Railcard, each catering to specific groups of travellers. You can discover more about Railcards here.

Split Tickets to save an average extra 30%

Another option to consider is splitting your tickets, which can save you around extra 30% on fares. Instead of purchasing a direct ticket from Cardiff to Portsmouth, you can split the route into two legs: A to C and C to B. This often turns out to be more affordable than buying a direct ticket, and you won’t even need to leave the train… or often your seat!.

Book in advance to save an average of 61%

Advance Tickets are typically released up to 12 weeks before the travel date and can offer significant savings compared to tickets purchased closer to departure. By planning your trip from Cardiff to Portsmouth ahead of time and booking your tickets early, you can potentially save up to 61% on your travel expenses.

Group travels to save 1/3

If you are travelling in a group, be sure to check out group travel discounts. Many train companies offer a ⅓ off standard fares for groups of three to nine people, making travelling from Cardiff to Portsmouth more affordable for families, friends, or colleagues planning a trip together.

Cardiff to Portsmouth train ticket types

There are various ticket types available for this route, each with different benefits and restrictions. Explore below to see which ticket type is best suited to your travel needs:

Off-Peak & Super Off-Peak tickets
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Off-peak tickets are cheaper and offer more flexibility for travel during less busy times. Super Off-Peak tickets are even cheaper and suitable for unconventional schedules.
Return train tickets
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This ticket includes both the outbound and return journeys, saving you the time and hassle of purchasing separate tickets. With just one ticket, you can travel smoothly along the same route.
Advance train tickets
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Typically, the most cost-effective option for train travel. They are usually available for purchase 12 weeks before the travel date.
Season train tickets
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These allow unlimited travel between two stations and can save you over 1/3 on train fares.

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Why Book Train Tickets With Trip.com?

Split Tickets
Save an average of 30% on train fares by splitting your Cardiff to Portsmouth journey
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No Booking Fees on the App
Only pay for your train travel – no hidden fees
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*After comparing the full year of 2023 for Split tickets and full-price tickets on Trip.com, the average savings rate for Split tickets is 30%.

Trains from Cardiff to Portsmouth from £13.00*

Save an average of 30%* with Split Tickets

Cardiff to Portsmouth train prices and times

Cardiff to Portsmouth train route details