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Southampton to Cardiff Bay train route details

First train
First train
06:24
Last train
Last train
20:23
Departure station
Departure station
Southampton
Arrival station
Arrival station
Cardiff Bay
Journey time
Journey time
2h 42m
Distance
Distance
138 km
Price
Price
NZD 55.09*
Train Operators
Train Operators
CrossCountry, Great Western Railway, Transport for Wales

How to book cheap train tickets from Southampton to Cardiff Bay

Travelling in off-peak train times

Travelling in off-peak train times

Off-Peak train tickets are generally cheaper than peak-time tickets, allowing travel outside morning (06:30-09:30) and evening (16:00-19:00) rush hours on weekdays. If your schedule allows for flexibility, choosing off-peak times for your trip from Southampton to Cardiff Bay can result in significant cost savings.
Using the Railcard for 1/3 off

Using the Railcard for 1/3 off

You can choose a Railcard to help you save up to 1/3 on fares from Southampton to Cardiff Bay for various reasons, such as your age (including the 16-25 Railcard or Senior Railcard) or options geared towards group travel (Family & Friends Railcard and Two Together Railcard). Discover more here.
Split Tickets to save an average extra 30%

Split Tickets to save an average extra 30%

Splitting tickets is a perfectly legal practice that involves purchasing separate, cheaper tickets for different segments of your journey on the same train instead of a single ticket for the entire trip. For example, if you are travelling from Southampton to Cardiff Bay, you might discover that buying a ticket from A to C, and then another ticket from C to B, is more economical than a direct ticket.
Book in advance to save an average of 61%

Book in advance to save an average of 61%

Advance Tickets are usually released up to 12 weeks before the travel date and can be significantly cheaper than tickets purchased closer to departure. By planning your trip from Southampton to Cardiff Bay ahead of time and securing your tickets early, you can save up to 61% on the cost of your travel.
Group travels to save 1/3

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 Southampton to Cardiff Bay more affordable for families, friends, or colleagues planning a trip together.

Southampton to Cardiff Bay train ticket types

Save money on your trip from Southampton to Cardiff Bay with suitable train tickets. It's a great way to spend less!

Why Book Train Tickets With Trip.com?

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  • Split Tickets

    Split Tickets

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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%.