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Cardiff to Portsmouth Train
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Cardiff to Portsmouth by train
The journey from Cardiff to Portsmouth by train is 102.15 mi and takes 4 hrs 34 mins. There are 84 connections per day, with the first departure at 05:07 and the last at 19:19. It is possible to travel from Cardiff to Portsmouth by train for as little as £111.40 or as much as £175.25. The best price for this journey is £111.40.
| Lowest Price | £111.40 |
| Journey Duration | 4 hrs 34 mins |
| Connection per Day | South Western Railway, Southern, Great Western Railway, CrossCountry 84 |
| Lowest Price | South Western Railway, Southern, Great Western Railway, CrossCountry £111.40 |
| Highest Price | South Western Railway, Southern, Great Western Railway, CrossCountry £175.25 |
| First Departure | South Western Railway, Southern, Great Western Railway, CrossCountry 05:07 |
| Last Departure | South Western Railway, Southern, Great Western Railway, CrossCountry 19:19 |
| Distance | South Western Railway, Southern, Great Western Railway, CrossCountry 102.15 mi |
| Departure | South Western Railway, Southern, Great Western Railway, CrossCountry Cardiff |
| Arrival | South Western Railway, Southern, Great Western Railway, CrossCountry Portsmouth |
| Carriers | South Western Railway, Southern South Western Railway, Southern, Great Western Railway, CrossCountry |
Cardiff to Portsmouth Train Times
Compare prices and tickets from Cardiff to Portsmouth
Book in advance and save
If you're looking for the best deal for your trip from Cardiff to Portsmouth, booking train tickets in advance is a great way to save money, but keep in mind that advance tickets are usually not available until 3 months before your travel date.
Stay flexible with your travel time and explore off-peak journeys
Planning your trips around off-peak travel times not only means that you'll be able to avoid the crowds, but can also end up saving you money. Being flexible with your schedule and considering alternative routes or times will significantly impact the amount of money you spend on getting from Cardiff to Portsmouth.
Always check special offers
Checking on the latest deals can help save a lot of money, making it worth taking the time to browse and compare prices. So make sure you get the best deal on your ticket and take advantage of special fares for children, youth and seniors as well as discounts for groups.
Unlock the potential of slower trains or connecting trains
If you're planning a trip with some flexible time, why not opt for the scenic route? Taking slower trains or connecting trains that make more stops may save you money on your ticket – definitely worth considering if it fits in your schedule.
Virail Pro Tip ✌: Booking 10 days in advance save 10% on average
Best time to book cheap train tickets from Cardiff to Portsmouth
The cheapest Cardiff - Portsmouth train tickets can be found for as low as £28.22 if you’re lucky, or £32.95 on average. The most expensive ticket can cost as much as £38.71.
Find the best day to travel to Portsmouth by train
When travelling to Portsmouth by train, if you want to avoid crowds you can check how frequently our customers are travelling in the next 30-days using the graph below. On average, the peak hours to travel are between 6:30am and 9am in the morning, or between 4pm and 7pm in the evening. Please keep this in mind when travelling to your point of departure as you may need some extra time to arrive, particularly in big cities!
Carriers on this route
Find out more about the carriers on this route.
Great Western Railway (GWR) is a British railway company that operates passenger services between London and the southwest of England, as well as parts of Wales. It was founded in 1833 and was originally known as the Great Western Railway Company. GWR is now owned by FirstGroup. The company is known for its iconic green livery and its historic steam locomotives, including the famous Flying Scotsman.
South Western Railway (SWR) is a train operating company in the United Kingdom that operates passenger services in South West England and parts of Southern England. It was formed in 2017 as a result of the merger of South West Trains and the Island Line Trains. SWR operates services to major cities such as London, Bristol, Southampton, and Portsmouth, as well as smaller towns and villages in the region. The company operates a fleet of modern trains, including electric and diesel multiple units, and provides a range of ticketing options, including season tickets, advance purchase tickets, and flexible fares. SWR is owned by FirstGroup and MTR Corporation.
| Facilities | South Western Railway | Southern | Great Western Railway |
|---|---|---|---|
Quiet zone |  | | |
WiFi | | | |
Power sockets | | | |
Food and drink | | | |
Luggage |  | | |
Cardiff to Portsmouth CO2 Emissions by Train
Anything we can improve?