COMPARE Prices across different modes

Oct 23
$92Great Western Railway
$31National Express
Oct 24
$92Great Western Railway
$29National Express
Oct 25
$55Great Western Railway
$29National Express
Oct 26
$55Great Western Railway
$18National Express
Oct 27
$55Great Western Railway
$18National Express

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Deutsche Bahn

Train Information from Cardiff to Portsmouth

distanceDistance102 miles (164 km)
durationAverage train duration3 h 21 min
priceAverage train ticket price$73 (€60)
frequencyTrain frequency12 a day
changesDirect trainYes, there are 12 direct trains a day
carriersTrain providersGreat Western Railway

Trains from Cardiff to Portsmouth cover the 102 miles (164 km) long trip taking on average 3 h 21 min with our travel partners like Great Western Railway. Normally, there are 12 trains operating per day, including direct services available. While the average ticket price for this trip costs around $73 (€60), you can find the cheapest train ticket for as low as $55 (€45). Travelers depart most frequently from Cardiff Central and arrive in Portsmouth & Southsea.

Travel Tips

Trains from Cardiff to Portsmouth
Travel by train to Portsmouth easily. Whether you want fast, cheap or something entirely different, our travel experts have collected everything you need to know so you can find the best option from Cardiff to Portsmouth.
What is the price of the cheapest train from Cardiff to Portsmouth?
Train tickets to Portsmouth from Cardiff for some dates and times can be found for as cheap as $55 (€45)  one way in the next 7 days.
What is the price of a train ticket to Portsmouth from Cardiff?
The Cardiff to Portsmouth train ticket price is on average $73 (€60)  if you are looking to book your tickets for this journey in the next week.
How far is Cardiff to Portsmouth by train?
You should expect to travel around 102 miles (164 km)  to Portsmouth from Cardiff by train.
How many hours is the train time to Portsmouth from Cardiff?
While the time it takes to travel 102 miles (164 km) from Cardiff to Portsmouth can vary based on specific dates, weekends, and holidays, the Cardiff to Portsmouth train journey time is on average 3 h 21 min.
When traveling by train from Cardiff to Portsmouth, which train station in Cardiff do I depart from and which train station in Portsmouth do I arrive in?

When taking the train to Portsmouth from Cardiff, you can choose to depart from train stations like Cardiff Central, Cardiff (Queen Street) and Cardiff (Cathays). Your route can end in train stations such as Portsmouth & Southsea and Portsmouth Harbour.

Omio customers who travel this route most frequently depart from Cardiff Central   and arrive in Portsmouth & Southsea.

Where do I find the Cardiff train station to Portsmouth? Where is the Portsmouth train station?

You can find the most popular departure train station for this trip, Cardiff Central, located approximately 0 mile (s) / 0 km from the city center of Cardiff. The most popular arrival train station in Portsmouth, called Portsmouth & Southsea, is located around 0 mile (s) / 0 km away from its city center.

What train companies offer a service between Cardiff and Portsmouth?
If you're looking for trains from Cardiff to Portsmouth, you can rely on Great Western Railway to get you to Portsmouth. It's also good to check out all possible train providers for the Cardiff to Portsmouth journey to see if there might be differences in the amenities they offer.
How many trains per day are there to Portsmouth from Cardiff?
On average, there are 12 trains a day from Cardiff to Portsmouth. The train times and services may be different on weekends and holidays compared to weekdays.
What are the first and last departure train times from Cardiff to Portsmouth?
The earliest train for this journey departs from Cardiff at 7: 27 AM. The last train leaves from Cardiff at 11: 30 AM. Check Omio for the latest train schedule from Cardiff to Portsmouth and book the best time to depart on your chosen travel date.
When should I book the Cardiff to Portsmouth train for the best deals on tickets?
In general, we recommend booking tickets for trains in advance to score the best deals from all possible train companies offering this trip and save money. If you buy train tickets from Cardiff to Portsmouth within the next 7 days, you can find tickets to cost on average $73 (€60) one way. To find the best prices for this journey, consider booking your train ticket from Cardiff to Portsmouth a few months in advance.

Important Stations and Airports for this Journey

Cardiff Central is the most popular Cardiff railway station for Omio travelers, but it's not the only one. Read all the information you need to know about the main train stations in Cardiff for your trip to Portsmouth.
Amenities at station
Ticket office hours
Mon - Fri: 05: 40 - 21: 30 | Sat: 05: 40 - 21: 30 | Sun: 07: 30 - 21: 30
Connections to/from station
Commuter rail lines: City Line, Rhondda Line, Rhymney Line, Valley Line, South Wales Main Line
Train lines: Transport for Wales, CrossCountry, Great Western Railway