Compare 3 ways to go from Southampton to Cardiff
| Average Price | Average Duration | CO₂ emissions | |||
|---|---|---|---|---|---|
| Average PriceUS$18 - US$59 | Average Duration6h 40m | 4kg CO₂e5 out of 5 stars | Cheapest | ||
| Average PriceUS$50 - US$307 | Average Duration2h 40m | 3kg CO₂e5 out of 5 stars | FastestMost eco-friendly | ||
Carpool | Average PriceUS$36 - US$36 | Average Duration3h 20m | 6kg CO₂e4 out of 5 stars |
Busbud recommends taking the train from Southampton to CardiffAmong the sustainable travel choices, the train stands out as a good way to reach Cardiff. The journey takes about 2 hours 40 minutes, and with fares starting at just US$50, it presents an excellent value for a comfortable ride.
Train Southampton to Cardiff: Trip Overview
Please note, this information is subject to change
Train companies
Based on 41 reviews, the company was rated 3.9 stars on Busbud. Travellers 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 US$50.00
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 on the trip Southampton - Cardiff
How much does a cheap train ticket from Southampton to Cardiff cost?
The average train ticket price from Southampton to Cardiff is US$50. The best way to find cheap 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 trip from Southampton to Cardiff?
A train trip between Southampton and Cardiff is around 2h 40m, although the fastest train will take about 2h 35m. This is the time it takes to travel the 140 km 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 4. Some trains are direct while others include transferring trains. Simplify your train trip from Southampton to Cardiff by comparing and selecting the train that fits your travel style and budget on Busbud.
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Southampton to Cardiff was searched and found on May 7, 2025 with a price of US$59To 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 US$59 to US$275 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 US$59 which is on 2025-05-07.
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 real-life musical score by curating a personalized train travel playlist - the perfect accompaniment to your train 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 travelled 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 travelling between the city and the suburbs.
Top Travelled Train Routes
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