Arriving in Cardiff
Every day, up to 45 train depart from Portsmouth Harbour and arrive in Cardiff, with the shortest journey taking 3h 21m minutes.
Book cheap train tickets from Portsmouth Harbour to Cardiff
It doesn’t need to be difficult to find cheap train tickets from Portsmouth Harbour to Cardiff. If you know where to look and how to take advantage of available discounts and travel options, then saving money with Trip.com becomes second nature. Here are some of our top tips to help you save money on your train travel.
Travel in a group to save 1/3
If you are traveling in a group of three to nine people, you can benefit from group travel discounts. Many train companies offer GroupSave options, which provide a discount of up to 1/3 on standard fares. This makes traveling from Portsmouth Harbour to Cardiff more affordable for families, friends, or colleagues planning a trip together.
Book in advance to save an average of 61%
One of the most effective ways to get cheap train tickets is to book in advance. Advance Tickets are usually released up to 12 weeks before the travel date and can be significantly cheaper than purchasing tickets closer to the departure date. By planning your trip from Portsmouth Harbour to Cardiff ahead of time and securing your tickets early, you can save up to 61% on the cost of your travel.
Get 1/3 off with a Railcard
Various Railcards are available for different groups and can save you up to 1/3 on fares from Portsmouth Harbour to Cardiff. You can choose the 16–25 Railcard or Senior Railcard based on your age. Additionally, the Family & Friends Railcard or Two Together Railcard are good options for group travel.
*Prices are dynamic and subject to change. Ticket prices vary based on time of day, route, and class. Prices shown do not include split ticket and Railcard discounts.