How much does a train ticket from Southampton to Cardiff cost?

The average train ticket price from Southampton to Cardiff is $49. The best way to find train tickets from Southampton to Cardiff is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!

How long is the train trip from Southampton to Cardiff?

A train trip between Southampton and Cardiff is around 2h 40m, although the fastest train will take about 2h 34m. This is the time it takes to travel the 87 miles that separates the two cities.

How many daily trains are there between Southampton and Cardiff?

The number of trains from Southampton to Cardiff can differ depending on the day of the week. On average, there are 5. Some trains are direct while others have layovers. Simplify your train trip from Southampton to Cardiff by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from Southampton to Cardiff?

When taking the train from Southampton to Cardiff, you can travel comfortably and safely with Great Western Railway.

What are the best sights and things to do in Cardiff?

Once in Cardiff, you can exploring the city. The top sights and things to do are Brecon Beacons National Park, Cardiff International White Water, St John the Baptist Church, Cardiff Castle, Wales Millennium Centre.

Train Southampton to Cardiff from $33 | Refundable Tickets

TodayJun 27

from $35

TomorrowJun 28

SunJun 29

MonJun 30

TueJul 1

WedJul 2

ThuJul 3

FriJul 4

Upcoming Train Schedules

One passenger / one way

This trip is recommended because it is: Cheapest
Departure time: June 27 at 8:10am
Departure city: Southampton
Departure location: Southampton Central
Arrival time: June 27 at 10:52am
Destination city: Cardiff
Destination location: Cardiff Central
Operated by: Great Western Railway
Vehicle: TrainDuration: 2h 42m
This trip is recommended because it is: Fastest
Departure time: June 27 at 9:11am
Departure city: Southampton
Departure location: Southampton Central
Arrival time: June 27 at 11:46am
Destination city: Cardiff
Destination location: Cardiff Central
Operated by: Great Western Railway
Vehicle: TrainDuration: 2h 35m
Departure time: June 27 at 9:11am
Departure city: Southampton
Departure location: Southampton Central
Arrival time: June 27 at 11:46am
Destination city: Cardiff
Destination location: Cardiff Central
Operated by: Great Western Railway
Vehicle: TrainDuration: 2h 35m
Departure time: June 27 at 3:11pm
Departure city: Southampton
Departure location: Southampton Central
Arrival time: June 27 at 5:49pm
Destination city: Cardiff
Destination location: Cardiff Central
Operated by: Great Western Railway
Vehicle: TrainDuration: 2h 38m
Departure time: June 27 at 4:11pm
Departure city: Southampton
Departure location: Southampton Central
Arrival time: June 27 at 6:49pm
Destination city: Cardiff
Destination location: Cardiff Central
Operated by: Great Western Railway
Vehicle: TrainDuration: 2h 38m

Accepted payments

Compare 3 ways to go from Southampton to Cardiff.

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$17 - $82	Average Duration7h 5m	CO₂ emissions 3kg CO₂e5 out of 5 stars	CheapestMost eco-friendly
Train	Average Price$35 - $301	Average Duration2h 40m	CO₂ emissions 3kg CO₂e5 out of 5 stars	Fastest
Carpool	Average Price$36 - $36	Average Duration3h 20m	CO₂ emissions 6kg CO₂e4 out of 5 stars

Busbud recommends carpooling from Southampton to Cardiff

Among the sustainable travel choices, the carpool stands out as the good way to reach Cardiff. The journey takes about 3 hours 20 minutes and with fares starting at just $36, it presents an excellent value for a comfortable ride.

1carpool per day

3h 20mAverage Duration

$36Cheapest ticket

6kgCO₂ emissions

Train Southampton to Cardiff: Trip Overview

Please note, this information is subject to change.

Average ticket price$49

Average train trip duration2h 40m

Number of daily trains5

Earliest train departure6:57am

Distance86 miles (138 km)

Latest train departure9:12pm

Train Companies

Great Western Railway

4/541 reviews

Staff5

Timeliness4.7

Cleanliness4.7

Wifi4.5

Based on 41 reviews, the company was rated 3.9 stars on Busbud. Travelers were especially satisfied with the staff and the seats but often complained with the value for money. Great Western Railway ticket prices on this trip start at $35

Train and bus companies in GB:RegioJet, FlixTrain, CrossCountry, Great Western Railway, Northern, Transpennine Express, ScotRail

Southampton to Cardiff Train

With Busbud, comparing and booking tickets for a train from Southampton to Cardiff is a breeze. Browse through an extensive selection of train fares and train schedules to find the best deals.

Train service from Southampton to Cardiff will be provided by the most trusted companies.

Whether it is train tickets or first class train tickets going to Cardiff from Southampton, we help you find what you're looking for based on how much of a budget you have.

Frequently asked questions for your trip Southampton - Cardiff

How much does a train ticket from Southampton to Cardiff cost?
How long is the train trip from Southampton to Cardiff?
How many daily trains are there between Southampton and Cardiff?
Which train companies travel from Southampton to Cardiff?
What are the best sights and things to do in Cardiff?

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

06/25

$46

06/26

$47

Today

$33

06/28

$47

06/29

$47

06/30

$47

07/01

$47

07/02

No data

The cheapest trip from Southampton to Cardiff was searched and found on Jun 27, 2025 with a price of $33

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Southampton to Cardiff, as early as possible.

You can expect to pay from $33 to $287 for a train ticket from Southampton to Cardiff based on the last 2 days. You can expect to find the cheapest price for the trip at $47 which is on 2025-06-28.

About Train Travel

Train Travel Tips

Taking the fastest trains allows you to travel at speeds greater than 300 km/h. Taking a trip from Southampton to Cardiff is not only much quicker but more comfortable too! You can usually travel directly to the city centre and save time while you're at it.

No matter if you plan to take a regional or high-speed train to Cardiff, the planet will thank you. You’ll help to protect the beautiful landscapes that will unfold before your very eyes.

By choosing the train between Southampton and Cardiff, you emit up to 30 times less CO2 than for the same journey made by plane or car!

Create your own real life musical score by curating a personalized train travel playlist - the perfect accompaniment to your bus ride from Southampton to Cardiff.

Did you know?

Railway companies played a major role as early as 1883 in the use of time zones as we know them today.

The first high-speed train line was inaugurated in 1964, in Japan, to connect Tokyo with Osaka. It was during the Olympics that the first passengers traveled aboard the Shinkansen at a speed of 210 km / h.

You can find dogs as passengers on the trains of Moscow, where there is a large number of stray dogs. Over time, the dogs have learned the inner workings of the rail system and it is not uncommon to find one traveling between the city and the suburbs.

Will you be returning to Southampton by train?

Train from Cardiff to Southampton

Top Traveled Train Routes

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Trains tickets from Southampton to Cardiff