Southampton to Cardiff train with Great Western Railway

Sat, Sep 05
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Great Western Railway
Cross Country
Great Western Railway (GWR)
Renfe AVANT
Regionale
2,000+ travel companies
Great Western Railway
Cross Country
Great Western Railway (GWR)
Renfe AVANT
Regionale
2,000+ travel companies
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The cheapest and fastest trains from Southampton to Cardiff

Showing times, prices and bookable tickets for Sep 05

Cheapest price on Sep 05

€64

Average ticket price on Sep 05

€98

Fastest journey on Sep 05

2 h 22 m

Average journey duration on Sep 05

2 h 22 m

Trains on Sep 05

26

Distance

139 km

Cheap tickets

The best way to find a cheap train ticket from Southampton to Cardiff is to book your journey as far in advance as possible and to avoid traveling at rush hour.

The average ticket from Southampton to Cardiff will cost around €98 if you buy it on the day, but the cheapest tickets can be found for only €64.

Fast trains

On Sat, Sep 05, we found 26 trains from Southampton to Cardiff, including 12 direct services.

On Sat, Sep 05 the direct trains cover the 139 km distance in an average of 2 h 22 m but if you time it right, some trains will get you there in just 2 h 22 m .

On Sat, Sep 05 the slowest trains will take 2 h 22 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.

  • Great Western RailwayW35006
    2:10 PM2h39
    Southampton Central (SOU)
    4:49 PMCardiff Central (CDF)
    641One-way
    0 transfers
  • Great Western RailwayC42268
    4:10 PM2h40
    Southampton Central (SOU)
    6:50 PMCardiff Central (CDF)
    641One-way
    0 transfers
  • Great Western RailwayC42270
    5:09 PM2h41
    Southampton Central (SOU)
    7:50 PMCardiff Central (CDF)
    641One-way
    0 transfers
  • Great Western RailwayW35011
    3:10 PM2h38
    Southampton Central (SOU)
    5:48 PMCardiff Central (CDF)
    641One-way
    0 transfers
  • Great Western RailwayC42272
    6:10 PM2h36
    Southampton Central (SOU)
    8:46 PMCardiff Central (CDF)
    641One-way
    0 transfers

Travel Information

Compare train and bus for Southampton to Cardiff

Omio recommends booking the train as it is the most popular option from Southampton to Cardiff among Omio's users. If you are prioritising price, take the bus, with an average ticket price of €25 For those with little time, consider booking a train, which has an average total journey time of 3h 13m. If you are seeking to minimise your carbon footprint, the train is your best option, with estimated CO2 emissions of 0.0 - 0.1kg. Average ticket prices depend on the travel mode: a bus costs an average of €25, while a train costs an average of €55.

Distance: 139 km

Compare train with

Most popular
Train
Bus
Driving

€55

Average price

€25

Average price

Cheapest

€35

Average price

(fuel + tolls)

3h 13m

Average total duration

Fastest

2h 43m

Onboard

+

30m

Additional time*

6h 30m

Average total duration

6h 0m

Onboard

+

30m

Additional time*

2h 37m

Average total duration

(door-to-door)

0.0 - 0.1kg

CO2 emissions

Lowest

0.1 - 0.3kg

CO2 emissions

-

CO2 emissions

Great Western Railway

Most popular train company

FlixBus

Most popular bus company

Your own car or car rental

Direct Options

Direct Options

Direct Options

Additional time: Average total travel duration to departure point, security checks and transfers.

The cheapest way to travel from Southampton to Cardiff is a bus with an average price of €25.

This is compared to other travel options from Southampton to Cardiff:

A bus is €30 less than a train for this route with tickets for a train from Southampton to Cardiff costing on average €55.

The fastest way to travel from Southampton to Cardiff is by train with an average journey time of 2h 43m.

Other travel options to Cardiff take longer:

Bus takes on average 6h 0m.

It's helpful to compare your options as there are 2 ways to travel between Southampton and Cardiff including taking a train and bus.

Live departures

Southampton to Cardiff train times

The table below shows live departures for Southampton to Cardiff trains for today, Friday, September 4. You can also manually refresh the results below to see updated train journeys.

Last updated at
ProviderDepartsDurationArrivesTransfers
Tickets
Great Western RailwayG15018
Delayed
3:13 PM 4:11 PMSouthampton Central (SOU)
2h39
6:50 PM Cardiff Central (CDF)
0 transfersDirect
Great Western RailwayW34637+CrossCountryG00895
On time
4:15 PM Southampton Central (SOU)
2h22
6:37 PM Cardiff Central (CDF)
1 transfer
Great Western RailwayC03080 · G14942+South Western RailwayL80115 · L79976
On time
4:30 PM Southampton Central (SOU)
3h08
7:38 PM Cardiff Central (CDF)
3 transfers
Great Western RailwayG15020
On time
5:11 PM Southampton Central (SOU)
2h42
7:53 PM Cardiff Central (CDF)
0 transfersDirect
Great Western RailwayG14943+CrossCountryG009015:15 PM Southampton Central (SOU)
2h59
8:14 PM Cardiff Central (CDF)1 transfer
Great Western RailwayC422558:09 AM Southampton Central (SOU)
2h43
10:52 AM Cardiff Central (CDF)0 transfersDirect
Great Western RailwayC42174+CrossCountryG008568:15 AM Southampton Central (SOU)
2h25
10:40 AM Cardiff Central (CDF)1 transfer
Great Western RailwayC42716 · C42463 · W346158:30 AM Southampton Central (SOU)
3h10
11:40 AM Cardiff Central (CDF)2 transfers
Great Western RailwayC422579:10 AM Southampton Central (SOU)
2h35
11:45 AM Cardiff Central (CDF)0 transfersDirect
Great Western RailwayW34615+CrossCountryG008599:15 AM Southampton Central (SOU)
2h25
11:40 AM Cardiff Central (CDF)1 transfer
Great Western RailwayW3498310:10 AM Southampton Central (SOU)
2h40
12:50 PM Cardiff Central (CDF)0 transfersDirect
Great Western RailwayC42175+CrossCountryG0086210:15 AM Southampton Central (SOU)
2h25
12:40 PM Cardiff Central (CDF)1 transfer
Great Western RailwayC4226011:10 AM Southampton Central (SOU)
2h37
1:47 PM Cardiff Central (CDF)0 transfersDirect
Great Western RailwayW34621+CrossCountryG0086811:15 AM Southampton Central (SOU)
2h22
1:37 PM Cardiff Central (CDF)1 transfer
Great Western RailwayW3499512:10 PM Southampton Central (SOU)
2h40
2:50 PM Cardiff Central (CDF)0 transfersDirect
Great Western RailwayW34625+CrossCountryG0087312:15 PM Southampton Central (SOU)
2h22
2:37 PM Cardiff Central (CDF)1 transfer
Great Western RailwayC03061 · C42176+South Western RailwayL80081 · L7995312:30 PM Southampton Central (SOU)
3h06
3:36 PM Cardiff Central (CDF)3 transfers
Great Western RailwayC422631:10 PM Southampton Central (SOU)
2h36
3:46 PM Cardiff Central (CDF)0 transfersDirect
Great Western RailwayW350062:10 PM Southampton Central (SOU)
2h39
4:49 PM Cardiff Central (CDF)0 transfersDirect
Great Western RailwayW34631+CrossCountryG008862:15 PM Southampton Central (SOU)
2h22
4:37 PM Cardiff Central (CDF)1 transfer
Great Western RailwayW350113:10 PM Southampton Central (SOU)
2h38
5:48 PM Cardiff Central (CDF)0 transfersDirect
Great Western RailwayW34635+CrossCountryG008893:15 PM Southampton Central (SOU)
2h22
5:37 PM Cardiff Central (CDF)1 transfer
Great Western RailwayC422684:10 PM Southampton Central (SOU)
2h40
6:50 PM Cardiff Central (CDF)0 transfersDirect

This is the last train of the day.

Find all the dates and times for this journey

Compare prices and tickets Southampton to Cardiff by train or bus

Compare train and bus prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

Sat
Sep 05
Sun
Sep 06
Mon
Sep 07
Tue
Sep 08
Wed
Sep 09
Thu
Sep 10
Fri
Sep 11

Why should you book Southampton to Cardiff trains with Omio?

Great Western Railway as well as Cross Country or Great Western Railway (GWR) offer trains services from Southampton to Cardiff.
Omio is an official ticket reseller for all your travel options from Southampton to Cardiff.

Why book with Omio vs Great Western Railway?

  • Compare with other providers: On Omio, you can not only buy tickets for Great Western Railway, but also compare tickets for the likes of Cross Country or Great Western Railway (GWR) to find the best option for your trip from Southampton to Cardiff.
  • Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
  • Compare all your options: Omio allows you to compare Great Western Railway with all available travel options, which are train and bus to ensure you get the best deal for traveling from Southampton to Cardiff.

Why book with Omio over Wanderu?

  • Multiple modes of transport: Omio allows you to compare travel options including train and bus to find the ideal travel option from Southampton to Cardiff.

Journey information

Overview: Train from Southampton to Cardiff

United KingdomUnited Kingdom
United KingdomUnited Kingdom
Icon of train

Trains from Southampton to Cardiff run on average 8 times per day, taking around 2h 43m. Cheap train tickets for this journey start at €23 but you can travel from only €16 by bus.

There are 2 trains per day. The earliest train runs at 04:25, the last at 21:30. The fastest train covers the 139 km distance in 2h 35m.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from €16
Distance
139 km
Average train duration
2h 43m
Cheapest ticket price
€23
Trains per day
8
Direct trains
2
Fastest train
2h 35m
First train
4:25 AM
Last train
9:30 PM
Cheapest Month
Jun
Cheapest Day
Wed
High Season
Jul - Sep
Low Season
Jan - Mar
Busiest Day
Wed
Least Busy Day
Sun
Best time to book
1 day
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from €16

Train companies: Great Western Railway, Cross Country, Great Western Railway (GWR) from Southampton to Cardiff trainsGreat Western Railway, Cross Country, Great Western Railway (GWR) trains will get you between Southampton and Cardiff from €16. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.

Great Western Railway

About
Great Western Railway is a train operating company in the United Kingdom. It operates services from London Paddington to the West of England, South Wales and the Cotswolds. It also operates services from London Paddington to Oxford, Reading and Bristol. It offers a range of ticket types, including Advance, Anytime, Off-Peak and Super Off-Peak tickets. Onboard facilities include free Wi-Fi, power sockets, air conditioning and catering services. The most popular routes for Great Western Railway are London Paddington to Bristol, Reading and Oxford.
Luggage & cancellation policy
Average Great Western Railway Duration
2h 35m
Cheapest Great Western Railway Price
€23
Luggage included
Two pieces of luggage and one piece of hand luggage included in ticket price
Luggage storage
Overhead racks, dedicated luggage areas at end of carriages, under seats
Cancellation Policy
Refund policies apply as per ticket type
Refund
Full refund if train is cancelled
Amenities on board the train
Wifi
Food sold onboard
Cafe bar serving hot and cold drinks, snacks, sandwiches. First Class at-seat service on some routes
Seat reservation
Optional seat reservations available for a fee. Free in First Class
Toilets
USB plugs
Accessibility
Wheelchair spaces, accessible toilets, ramps for boarding, priority seating, assistance service available
Pets
Small pets travel free. Dogs must be on lead. Maximum two dogs per passenger
Quiet zone

Cross Country

Luggage & cancellation policy
Average Cross Country Duration
2h 20m
Cheapest Cross Country Price
€172
Cross Country frequency
12 a day

Great Western Railway (GWR)

Luggage & cancellation policy
Average Great Western Railway (GWR) Duration
2h 34m
Cheapest Great Western Railway (GWR) Price
€95
Great Western Railway (GWR) frequency
13 a day

FAQs: Trains from Southampton to Cardiff

Find answers to the most common questions about traveling from Southampton to Cardiff by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at Cardiff, this guide helps you travel smarter and with confidence.

FAQs
Cheap train tickets from Southampton to Cardiff can start from as little as €23 when you book in advance. The average train ticket price for Southampton to Cardiff is €55; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by train from Southampton to Cardiff is 2h 35m to travel the 139 km long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest train from Southampton to Cardiff leaves at 4:25 AM. Plan your trip with the Journey Planner   from Omio.
The latest train from Southampton to Cardiff leaves at 9:30 PM.
Yes,there are 2 direct trains a day from Southampton to Cardiff with Great Western Railway, Great Western Railway (GWR). Schedules can vary on holidays or weekends with fewer direct trains.
When taking a train from Southampton to Cardiff, you can count on Great Western Railway, Cross Country, Great Western Railway (GWR) for the best way to get you to Cardiff. You can also check all possible train companies who offer a service between Southampton and Cardiff and compare the amenities they offer before buying a train ticket.
A trip to Cardiff from Southampton is worth doing but not as a day trip with a journey time of 2h 35m each way. Check with Omio app the best way to travel.
The cheapest month for a train from Southampton to Cardiff is June.
It's helpful to compare your options as there are 2 ways to travel between Southampton and Cardiff including taking a train and bus.

popular train stations

Popular train stations from Southampton to Cardiff

Most Southampton to Cardiff trains use the Southampton Central to Cardiff Central station pair, with some services arriving at Cardiff Queen Street. Use this guide to compare Southampton and Cardiff train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.

Departure train stations in Southampton
Arrival train stations in Cardiff

Which Southampton station do trains to Cardiff leave from?

Trains from Southampton to Cardiff leave from Southampton Central. The station is 1 km from Southampton city centre at Southampton Central station, Blechynden Terrace, Southampton, Hampshire, SO15 1AL.
Southampton CentralSouthampton Central station, Blechynden Terrace, Southampton, Hampshire, SO15 1AL+44 345 600 0650WifiShoppingParkingDiningATMTaxisAccessibilityWCLoungeLost and Found OfficeTicket OfficeBike ParkingBike RentalCar Rental
City-centre transport

Getting to Southampton Central from Southampton city centre

BusX4, X5 · 5m · €2 · every ~20 min

Southampton Central train station facilities and services

Southampton Central has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Lounge, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, and Car Rental.

Food and drink

Food and drink options are available at Southampton Central.

Wi-Fi and ATMs

Wi-Fi is available at Southampton Central. ATMs are available at Southampton Central.

Tickets and information

Ticket office support is available at Southampton Central.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Southampton Central: Parking, Taxis, WC.

Bike and car services

Available at Southampton Central: Bike Parking, Bike Rental, Car Rental.

Accessibility

Accessibility facilities are available at Southampton Central: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step-free category A Station - This station has step-free access to all platforms. Please be aware that this station has no tactile paving on the platform edge, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: Yes.

Southampton Airport ParkwaySouthampton Airport Parkway station, Wide Lane, Southampton, Hampshire, SO18 2HW+44 345 600 0650WifiParkingDiningATMTaxisAccessibilityWCLoungeLost and Found OfficeTicket OfficeBike ParkingCar Rental
City-centre transport

Getting to Southampton Airport Parkway from Southampton city centre

Southampton Airport Parkway is 5 km from Southampton city centre. Public transport options include:

TrainSalisbury - Romsey, Weymouth - London Waterloo, Bournemouth - Winchester, Poole - London Waterloo, Southampton Central - London Waterloo, Weymouth - Woking, Bournemouth - Basingstoke, Poole - Winchester, Southampton Central - Basingstoke, Bournemouth - London Waterloo, Poole - Eastleigh, Weymouth - Eastleigh, Romsey - Romsey, Southampton Central - Woking, Salisbury - Salisbury, Salisbury - Eastleigh, Southampton Central - Eastleigh, Southampton Central - Romsey · 10m · €3 · every ~8 min
BusU1a, U1e · 34m · €2 · every ~21 min
U1a, U1e · 40m · €2 · every ~37 min

Southampton Airport Parkway train station facilities and services

Southampton Airport Parkway has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, Lounge, Lost and Found Office, Ticket Office, Bike Parking, and Car Rental.

Food and drink

Food and drink options are available at Southampton Airport Parkway.

Wi-Fi and ATMs

Wi-Fi is available at Southampton Airport Parkway. ATMs are available at Southampton Airport Parkway.

Tickets and information

Ticket office support is available at Southampton Airport Parkway.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Southampton Airport Parkway: Parking, Taxis, WC.

Bike and car services

Available at Southampton Airport Parkway: Bike Parking, Car Rental.

Accessibility

Accessibility facilities are available at Southampton Airport Parkway: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step-free category A Station - This station has step-free access to all platforms. Please be aware that some platforms at this station have no or only partial tactile paving on the platform edge, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.

SwaythlingSwaythling station, Wessex Lane, Swaythling, Hampshire, SO18 2LB+44 345 600 0650WifiParkingDiningAccessibilityLost and Found OfficeTicket OfficeBike ParkingBike Rental
City-centre transport

Getting to Swaythling from Southampton city centre

Swaythling is 4 km from Southampton city centre. Public transport options include:

TrainSouthampton Central - London Waterloo, Salisbury - Romsey, Romsey - Romsey, Salisbury - Salisbury, Bournemouth - Basingstoke, Southampton Central - Basingstoke, Bournemouth - Winchester, Southampton Central - Woking, Weymouth - Eastleigh, Salisbury - Eastleigh, Southampton Central - Romsey · 7m · €2 · every ~3 min
BusU6h · 22m · €2 · every ~11 min
2 · 28m · €4 · every ~22 min
U1a, U1e · 30m · €2 · every ~21 min
U1a, U1e · 33m · €2 · every ~37 min

Swaythling train station facilities and services

Swaythling has practical services for this route, including Wifi, Parking, Dining, Accessibility, Lost and Found Office, Ticket Office, Bike Parking, and Bike Rental.

Food and drink

Food and drink options are available at Swaythling.

Wi-Fi and ATMs

Wi-Fi is available at Swaythling.

Tickets and information

Ticket office support is available at Swaythling.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Swaythling: Parking.

Bike and car services

Available at Swaythling: Bike Parking, Bike Rental.

Accessibility

Accessibility facilities are available at Swaythling: Staff help available: No, Step free access coverage: No, Step free access note: Step-free category B station - This station has no step-free access to Platform 1 (for trains towards Eastleigh/ London Waterloo). There is level access to Platform 2 (for trains towards Southampton Central). Please be aware that this station has no tactile paving on the platform edge, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: No.

More options for your journey from Southampton to Cardiff

Here are some other resources that might have the information you need

HomeTrainsTrain Times to CardiffSouthampton to Cardiff train

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