Next departures for Cardiff to Southampton on November 24
Operated by
Vehicle type
Departure time
Departure location
Trip duration
Arrival time
Arrival location
Recommended
Price and booking link
Bus
Cardiff (Gabalfa Interchange, o/s Clinic)
University of Southampton
Cheapest
Bus
Cardiff North Road (Friary Gardens)
Southampton University
Fastest
Bus
Cardiff (Gabalfa Interchange, o/s Clinic)
University of Southampton
No tags
Bus
Cardiff North Road (Friary Gardens)
Southampton
No tags
Bus
Cardiff (Gabalfa Interchange, o/s Clinic)
University of Southampton
No tags
Last refresh of the prices: Yesterday at 11:38 PM GMT.
Compare 3 ways to go from Cardiff to Southampton
We recommend taking the train
Among the sustainable travel choices, the train stands out as the good way to reach Southampton. The journey takes about 2 hours 36 minutes and with fares starting at just $34, it presents an excellent value for a comfortable ride.
Based on 29717 reviews, the company was rated 4.2 stars on Busbud. Travelers were especially satisfied with the ticket access and the staff but often complained with the wifi. National Express ticket prices on this trip start at $19
National Express Cardiff Southampton recent customer reviews
Very helpful drivers, great info about getting to our final destination. Pretty full as it was half-term but journey was good. Looking forward to the return trip in 16 days time. Good value for money.
Flixbus is a European bus operator that offers intercity and bus travel in over 38 countries. Known for their easy-to-spot lime green buses and for offering affordable transportation between cities in Europe and the Americas, Flixbus is a good option for those looking for an affordable, reliable bus company. In their buses, you'll find free WiFi, bathrooms, and power outlets. You can also pay extra to choose your seat and get extra legroom, or even buy a snack or drink onboard directly from the driver. You can reschedule your ticket for a small fee, which varies from $1 to $5, depending on how close you are to the departure date.
51-55 Above Bar St, Southampton, Southampton SO14 7DZ, UK
E - Southampton Central
Western Esplanade, Southampton SO15 1QJ, UK
F - Ferry Terminal
7 Town Quay, Southampton SO14 2ET, UK
Frequently asked questions about traveling from Cardiff to Southampton by bus
How far is Cardiff from Southampton?
The distance separating Cardiff and Southampton is 87 miles (140 km).
What are the departure and arrival stations when taking the bus from Cardiff to Southampton?
Most of the buses traveling from Cardiff to Southampton leave from Cardiff University (o/s Cathays Rail Stn) and arrive at Southampton Coach Station. These are the main departure and arrival locations on this route, but you can find others that could fit better into your travel plans.
What are the best sights and things to do in Southampton?
Once in Southampton, you can start exploring the city and discover its surroundings. The top sights and things to do are Southampton’s Parks, Mayflower Theatre, Southampton’s Old Town, Bike The Tracks Of New Forest and Tudor House & Garden.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
Best price found
11/17
$21
11/18
$18
Today
$18
11/20
$17
11/21
$17
11/22
No data
11/23
No data
11/24
$21
The cheapest trip from Cardiff to Southampton was searched and found on Nov 21, 2025 with a price of $17
To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Cardiff to Southampton, as early as possible.
You can expect to pay from $17 to $64 for a bus ticket from Cardiff to Southampton based on the last 2 days. You can expect to find the cheapest price for the trip at $17 which is on 2025-11-21.
Usually National Express will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.
The cheapest trip from Cardiff to Southampton was searched and found on Nov 21, 2025 with a price of $17
