Timetable
Train route
Cheap train tickets
  1. Trip.com
  2. Trains
  3. UK Trains
  4. Routes
  5. Cardiff Bay to Southampton Trains
UK train new user gifts 2% off trains

  • 2% OFF

    Jun ١٩, ٢٠٢٤-Jun ٢٠, ٢٠٢٦

    2% OFF UK Train New User Promo Code

    Jun ١٩, ٢٠٢٤-Jun ٢٠, ٢٠٢٦

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 BHD 12.160, with average prices for this route around BHD 12.160. To ensure you get the most affordable fares, we suggest exploring alternatives like split tickets.

View More Trains
DepartureArrivalOperator
Find Tickets
07:08
2 hours 55 minutes, Changes required
Cardiff Bay
10:03
Southampton Central
Transport for WalesGreat Western Railway
Find Tickets
07:26
3 hours 9 minutes, Changes required
Cardiff Bay
10:35
Southampton Airport Parkway
Transport for WalesGreat Western RailwayCrossCountry
Find Tickets
08:08
2 hours 55 minutes, Changes required
Cardiff Bay
11:03
Southampton Central
Transport for WalesGreat Western Railway
Find Tickets
08:26
3 hours 9 minutes, Changes required
Cardiff Bay
11:35
Southampton Airport Parkway
Transport for WalesGreat Western RailwayCrossCountry
Find Tickets
09:08
2 hours 56 minutes, Changes required
Cardiff Bay
12:04
Southampton Central
Transport for WalesGreat Western Railway
Find Tickets
10:08
2 hours 55 minutes, Changes required
Cardiff Bay
13:03
Paris
Transport for WalesGreat Western Railway
Find Tickets

Cardiff Bay to Southampton Train Route Details

First train
First train
07:08
Last train
Last train
19:56
Departure station
Departure station
Cardiff Bay
Arrival station
Arrival station
Southampton
Journey time
Journey time
2 hours 55 minutes
Distance
Distance
138 km
Price
Price
BHD 12.160*
Train operators
Train operators
CrossCountry, Great Western Railway, Transport for Wales

How to book cheap train tickets from Cardiff Bay to Southampton

Traveling in off-peak train times

Traveling in off-peak train times

We recommend buying train tickets from Cardiff Bay to Southampton during off-peak hours. These times are usually before 06:30, between 09:30 and 16:00, and after 19:00 on weekdays, as well as all day on weekends and bank holidays. Choosing Off-Peak train tickets means benefiting from cheaper fares and less crowded trains, making your journey more enjoyable.
Get 1/3 off with a Railcard

Get 1/3 off with a Railcard

Railcards offer discounts of up to 1/3 on most tickets. There are various types of Railcards catering to different types of travelers, such as the 16–25 Railcard, the Family & Friends Railcard, and the Senior Railcard. For more information on Railcards and how they can help you save, visit Railcards 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 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%

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.
Travel in a group to save 1/3

Travel in a group to save 1/3

If you are traveling 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 traveling from Cardiff Bay to Southampton more affordable for families, friends, or colleagues planning a trip together.

Cardiff Bay to Southampton train ticket types

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

Why Book Train Tickets With Trip.com?

  • Split Tickets

    Best price promise

    If you find trains for a cheaper price elsewhere, let us know and we'll refund the difference*

  • Split Tickets

    Split Tickets

    Save an average of 30% on train fares by splitting your Cardiff Bay to Southampton journey

  • Split Tickets

    National Rail Partners

    Official train ticket sellers with 5-star customer support

  • Split Tickets

    No Booking Fees on the App

    Only pay for your train travel – no hidden fees

Recommendations

  • Trains from Cardiff Bay

  • Trains to Southampton

  • Popular routes

  • Top Destinations

  • Popular stations

*After comparing the full year of 2023 for SplitTickets and full-price tickets on Trip.com, the average savings rate for SplitTickets is 30%.