Timetable

Train route

Cheap train tickets

UK Trains New User Gifts 2% off trains


2% OFF
Jun 19, 2024-Jun 20, 2026
2% OFF UK Train New User Promo Code
Jun 19, 2024-Jun 20, 2026





Cardiff Bay to Southampton train prices and times

Planning a journey from Cardiff Bay to Southampton? Trip.com offers train tickets starting from as low as CAD 44.44, with average prices for this route around CAD 111.86. To ensure you get the most affordable fares, we suggest exploring alternatives like split tickets.

View More Trains

Departs	Arrives	Find Tickets
21:56 9h 50m, No direct Cardiff Bay	07:46 +1 Southampton Central	Find Tickets
23:54 8h 45m, No direct Cardiff Bay	08:39 +1 Southampton Airport Parkway	Find Tickets
23:54 9h 8m, No direct Cardiff Bay	09:02 +1 Paris	Find Tickets

Cardiff Bay to Southampton train route details

First train

07:08

Last train

23:54

Departure station

Cardiff Bay

Arrival station

Southampton

Journey time

2h 38m

Distance

138 km

Price

CAD 44.44*

Train Operators

CrossCountry, Great Western Railway, South Western Railway

How to book cheap train tickets from Cardiff Bay to Southampton

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 Cardiff Bay to Southampton can result in significant cost savings.

Using the Railcard for 1/3 off

You can choose a Railcard to help you save up to 1/3 on fares from Cardiff Bay to Southampton 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%

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 Cardiff Bay to Southampton, 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%

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 Bay to Southampton 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 planning a trip with a group of three to nine people, take advantage of ⅓ off standard fares with group travel discounts, offered by many train companies, perfect for journeys with your family, friends, or colleagues.

Cardiff Bay to Southampton 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:





Why Book Train Tickets With Trip.com?

Best Price Promise
If you find trains for a cheaper price elsewhere, let us know and we'll refund the difference*
Split Tickets
Save an average of 30% on train fares by splitting your Cardiff Bay to Southampton journey
National Rail Partners
Official train ticket sellers with 5-star customer service
No Booking Fees on the App
Only pay for your train travel – no hidden fees

*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 Bay to Southampton from CAD 44.44

Save an average of 30%* with Split Tickets

2% OFF

2% OFF UK Train New User Promo Code

Cardiff Bay to Southampton train prices and times

Cardiff Bay to Southampton train route details