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Travel Information
Compare train and bus for Cardiff to Portsmouth
Omio recommends booking the bus as it is the most popular option from Cardiff to Portsmouth among Omio's users. If you are prioritising price, take the bus, with an average ticket price of $39 For those with little time, consider booking a train, which has an average total journey time of 3h 50m. 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 $39, while a train costs an average of $74.
Distance: 101 miles (164 km)
Compare bus with
Most popular Bus | Train | Driving |
|---|---|---|
$39 Average price Cheapest | $74 Average price | $49 Average price (fuel + tolls) |
6h 40m Average total duration 6h 10m Onboard + 30m Additional time* | 3h 50m Average total duration Fastest 3h 20m Onboard + 30m Additional time* | 2h 52m Average total duration (door-to-door) |
0.2 - 0.4kg CO2 emissions | 0.0 - 0.1kg CO2 emissions Lowest | - CO2 emissions |
 Most popular bus company |  Most popular train 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.
This is compared to other travel options from Cardiff to Portsmouth:
A bus is $38 less than a train for this route with tickets for a train from Cardiff to Portsmouth costing on average $100.
Other travel options to Portsmouth take longer:
Bus takes on average 6h 14m.
Tickets start at around $62 compared to roughly $49 in fuel and tolls — a saving of about $-12.54. The journey takes 5h 44m versus 2h 52m by car, so you'll arrive a bit later, but you can use the time productively rather than spending it behind the wheel. No parking to sort, no fuel stops, and most coaches have Wi-Fi and power outlets.
Driving is worth considering if you're on a tight schedule, travelling as a group (where fuel costs split several ways), or want the flexibility to stop along the way.
Travel optionsfrom Cardiff to Portsmouth
How to get from Cardiff to Portsmouth by train, bus or flight.
Our recommendation
The best way to travel from Cardiff to Portsmouth is by taking a bus because it’s the best combination of price and speed.
- NX509 · NX0305:55 AM6h20Cardiff, Sophia Gardens12:15 PMPortsmouth, The Hard Interchange$471One-way1 transfer
Cheapest
- NX509 · NX0305:55 AM6h20Cardiff, Sophia Gardens12:15 PMPortsmouth, The Hard Interchange$471One-way1 transfer
Fastest
- W3497910:25 AM3h21Cardiff Central (CDF)1:46 PMPortsmouth & Southsea (PMS)$1061One-way0 transfers
Other options
- C0085011:25 AM3h21Cardiff Central (CDF)2:46 PMPortsmouth & Southsea (PMS)$1061One-way0 transfers
- W349739:18 AM3h28Cardiff Central (CDF)12:46 PMPortsmouth & Southsea (PMS)$1061One-way0 transfers
- W35211 · C33124+
L796099:21 AM3h47Cardiff Central (CDF)1:08 PMPortsmouth & Southsea (PMS)$1761One-way2 transfers
- NX509 · NX0304:15 PM6h45Cardiff, Sophia Gardens11:00 PMPortsmouth, The Hard Interchange$621One-way1 transfer
- NX509 · NX0307:45 AM7h10Cardiff, Sophia Gardens2:55 PMPortsmouth, The Hard Interchange$621One-way1 transfer
- NX509 · NX0305:00 PM7h30Cardiff, Sophia Gardens12:30 AMPortsmouth, The Hard Interchange$621One-way1 transfer
Find all the dates and times for this journey by train, bus, flight, and ferry .
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FAQs: Travel from Cardiff to Portsmouth
Travel to Portsmouth easily. Whether you want fast, cheap or something entirely different, our travel experts have collected everything you need to know so you can find the best option from Cardiff to Portsmouth.
This is compared to other travel options from Cardiff to Portsmouth:
A bus is $12 less than a train for this route with tickets for a train from Cardiff to Portsmouth costing on average $74.
Other travel options to Portsmouth take longer:
Bus takes on average 6h 14m.
- Around 7 buses per day.
- Around 6 trains per day.
However, we recommend checking specific travel dates for your route between Cardiff and Portsmouth as scheduled services by train and bus can vary by season or day of the week.
- Trains mostly depart from Cardiff Central (CDF) and arrive in Portsmouth & Southsea (PMS).
- Buses mostly depart from Cardiff, Sophia Gardens and arrive in Portsmouth, The Hard Interchange.
- Ferries mostly depart from Yarmouth and arrive in Lymington Pier.
- Travel with Great Western Railway, Great Western Railway (GWR) to go to Portsmouth by train.
- Travel with National Express to go to Portsmouth by bus.
- 4 direct trains per day with Great Western Railway (GWR).
Travelling from Cardiff to Portsmouth: related information
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