- Must visit
Mary Rose Museum
World-class museum housing Henry VIII's raised flagship. See the preserved Tudor warship and immersive galleries on life aboard.
Cheapest price
$52
Average price
$64
Fastest journey
5 h 25 m
Average duration
6 h 33 m
Buses per day
8
Distance
164 km
The best way to find a cheap bus ticket from Cardiff to Portsmouth is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Cardiff to Portsmouth will cost around $64 if you buy it on the day, but the cheapest tickets can be found for only $52.
It's difficult to get from Cardiff to Portsmouth without transferring at least once.
NX509 · NX030
NX509 · NX030
NX509 · NX030
NX201 · NX030
NX202 · NX030
NX201 · NX030
NX202 · NX030
NX201 · NX030
NX509 · NX030
NX509 · NX030Omio recommends booking the train as it is the most popular option from Cardiff to Portsmouth among Omio's users. If you are prioritising price take the bus with prices starting from $19. For those with little time consider booking a train which can get you there in 3h 20m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.0 - 0.1kg. The ticket price range depends on the travel mode: a bus costs an average of $19, and a train costs an average of $42.
Distance: 101 miles (164 km)
| Bus | Most popular Train | Driving |
|---|---|---|
$40 Average price Cheapest | $96 Average price | $49 Average price (fuel + tolls) |
6h 46m Average total duration 6h 16m 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 $56 less than a train for this route with tickets for a train from Cardiff to Portsmouth costing on average $96.
Other travel options to Portsmouth take longer:
Bus takes on average 6h 16m.
You'll arrive about {timeSavings} sooner ({durationInMinutes} by bus vs {drivingDurationInMinutes} by car) and save roughly {savingsAmount} compared to fuel and tolls ({cheapestPrice} vs {drivingPriceInCents}). You also skip the drive itself — no traffic stress, no parking, and you can use the time to work, nap, or catch up on a series with the onboard Wi-Fi.
Direct coaches are operated by {directProviders}.
Driving is still worth considering if you're travelling with bulky luggage, need flexibility on departure times, or plan to stop along the way.
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator National Express | Departure Time 04:45AM | Arrival Time 10:40AM | Duration 5h55 | Departure days Sat, Sun | Cheapest price $50 |
Operator National Express | Departure Time 05:15AM | Arrival Time 12:05PM | Duration 6h50 | Departure days Thu | Cheapest price $56 |
Operator National Express | Departure Time 05:20AM | Arrival Time 12:25PM | Duration 7h05 | Departure days Fri | Cheapest price $37 |
Operator National Express | Departure Time 05:25AM | Arrival Time 10:50AM | Duration 5h25 | Departure days Tue, Wed | Cheapest price $63 |
Operator National Express | Departure Time 05:55AM | Arrival Time 12:15PM | Duration 6h20 | Departure days Sat, Sun | Cheapest price $33 |
Operator National Express | Departure Time 07:20AM | Arrival Time 02:20PM | Duration 7h00 | Departure days Wed | Cheapest price $81 |
Operator National Express | Departure Time 07:30AM | Arrival Time 01:55PM | Duration 6h25 | Departure days Sat, Sun | Cheapest price $57 |
Operator National Express | Departure Time 07:45AM | Arrival Time 02:55PM | Duration 7h10 | Departure days Sat, Sun | Cheapest price $33 |
Operator National Express | Departure Time 09:00AM | Arrival Time 03:50PM | Duration 6h50 | Departure days Tue, Wed, Thu | Cheapest price $58 |
Operator National Express | Departure Time 10:40AM | Arrival Time 04:25PM | Duration 5h45 | Departure days Sat, Sun | Cheapest price $77 |
Operator National Express | Departure Time 11:40AM | Arrival Time 06:30PM | Duration 6h50 | Departure days Tue, Wed | Cheapest price $73 |
Operator National Express | Departure Time 12:30PM | Arrival Time 07:30PM | Duration 7h00 | Departure days Tue, Wed, Thu | Cheapest price $36 |
Operator National Express | Departure Time 12:35PM | Arrival Time 06:50PM | Duration 6h15 | Departure days Sat, Sun | Cheapest price $68 |
Operator National Express | Departure Time 02:55PM | Arrival Time 09:25PM | Duration 6h30 | Departure days Tue, Wed | Cheapest price $63 |
Operator National Express | Departure Time 03:05PM | Arrival Time 09:50PM | Duration 6h45 | Departure days Sat, Sun | Cheapest price $68 |
Operator National Express | Departure Time 03:45PM | Arrival Time 11:00PM | Duration 7h15 | Departure days Mon | Cheapest price $41 |
Operator National Express | Departure Time 04:00PM | Arrival Time 11:00PM | Duration 7h00 | Departure days Sat, Sun | Cheapest price $27 |
Operator National Express | Departure Time 04:30PM | Arrival Time 12:30AM | Duration 8h00 | Departure days Tue, Wed | Cheapest price $56 |
Operator National Express | Departure Time 05:30PM | Arrival Time 12:30AM | Duration 7h00 | Departure days Mon, Sat, Sun | Cheapest price $25 |
Operator National Express | Departure Time 06:45PM | Arrival Time 01:15AM | Duration 6h30 | Departure days Fri | Cheapest price $57 |
Operator National Express | Departure Time 07:15PM | Arrival Time 02:15AM | Duration 7h00 | Departure days Tue, Wed | Cheapest price $52 |
Operator National Express | Departure Time 07:45PM | Arrival Time 02:15AM | Duration 6h30 | Departure days Mon, Sat, Sun | Cheapest price $42 |
The table below shows live departures for Cardiff to Portsmouth buses for tomorrow, Wednesday, August 5. You can also manually refresh the results below to see updated bus journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
NX201 · NX030 | 5:25 AM Cardiff, Sophia Gardens | 5h25 | 10:50 AM Portsmouth, The Hard Interchange | 1 transfer | |
NX201 · NX030 | 7:20 AM Cardiff, Sophia Gardens | 7h00 | 2:20 PM Portsmouth, The Hard Interchange | 1 transfer | |
NX509 · NX030 | 9:00 AM Cardiff, Sophia Gardens | 7h00 | 4:00 PM Portsmouth, The Hard Interchange | 1 transfer | |
NX201 · NX030 | 11:40 AM Cardiff, Sophia Gardens | 6h50 | 6:30 PM Portsmouth, The Hard Interchange | 1 transfer | |
NX509 · NX030 | 12:30 PM Cardiff, Sophia Gardens | 7h10 | 7:40 PM Portsmouth, The Hard Interchange | 1 transfer | |
NX202 · NX030 | 2:55 PM Cardiff, Sophia Gardens | 6h30 | 9:25 PM Portsmouth, The Hard Interchange | 1 transfer | |
NX201 · NX030 | 4:30 PM Cardiff, Sophia Gardens | 8h00 | 12:30 AM Portsmouth, The Hard Interchange | 1 transfer | |
NX509 · NX030 | 7:15 PM Cardiff, Sophia Gardens | 7h00 | 2:15 AM Portsmouth, The Hard Interchange | 1 transfer | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
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.
Buses from Cardiff to Portsmouth run on average 9 times per day, taking around 6h 16m. Cheap bus tickets for this journey start at $19 if you book in advance.
The earliest bus runs at 03:05, the last at 21:00. The fastest bus covers the 101 miles (164 km) distance in 6h 25m.
Distance 101 miles (164 km) |
Average bus duration 6h 16m |
Cheapest ticket price $19 |
Buses per day 9 |
Fastest bus 6h 25m |
First bus 3:05 AM |
Last bus 9:00 PM |
Cheapest Month Feb |
Cheapest Day Sat |
High Season Jul - Sep |
Low Season Jan - Mar |
Busiest Day Fri |
Least Busy Day Sun |
Best time to book 91 days |
Discover the best of Portsmouth — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Portsmouth trip today.
World-class museum housing Henry VIII's raised flagship. See the preserved Tudor warship and immersive galleries on life aboard.
Museum dedicated to HMS Victory and Nelson's navy. Learn about the Battle of Trafalgar and life in the age of sail.
Historic ironclad from 1860 that changed naval warfare. Explore decks, engine spaces and displays in the Historic Dockyard.
Historic harbourfront quarter with cobbled lanes, old pubs, sea walls and major naval attractions. Ideal for first-time visitors on foot.
Atmospheric old quarter with narrow streets, Georgian houses and waterfront views. Great for history, churches and a quieter local feel.
Lively seafront district known for beach walks, gardens, castle and independent venues. A classic area for promenade views and relaxation.
A Portsmouth classic of battered cod or haddock with chips, tied to the city’s long naval and seafaring tradition and best eaten fresh by the waterfront.
Fresh crab landed on the south coast, often served simply in sandwiches or salads. It reflects Portsmouth’s harbour access and strong seafood culture.
Portsmouth sits by rich oyster waters, and oysters are a traditional local treat served raw or dressed, prized for their fresh, briny flavour.
Refined fine dining in Southsea known for modern British tasting menus, polished service, and a special-occasion atmosphere.
Lively Southsea venue famous for fresh seafood and shellfish, offering a casual setting popular with locals and visitors.
Historic waterside pub in Old Portsmouth serving cask ales and classic British dishes with harbour views and traditional character.
Moderate for the UK. Hotels often cost less than London, while dining and local transit are mid-range for a coastal city.
Tipping is optional. In restaurants, 10-12.5% is common if service is not included. Round up taxi fares. Cafes usually do not expect tips, but small change is appreciated.
Official public transport app
The Hard Interchange -> Commercial Road, Portsmouth
Find answers to the most common questions about traveling from Cardiff to Portsmouth by bus. 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 bus, the cheapest option, or tips for making the most of your visit at Portsmouth, this guide helps you travel smarter and with confidence.

Most Cardiff to Portsmouth buses use the Cardiff, Sophia Gardens to Portsmouth, The Hard Interchange station pair, with some services arriving at Southampton, Burgess Rd / Broadlands Rd (Southampton University). Use this guide to compare Cardiff and Portsmouth bus stations on this route, check city-centre transport, alongside checking practicalities like bus station facilities and services.
Cardiff, Sophia Gardens has practical services for this route, including Wifi, Parking, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Wi-Fi is available at Cardiff, Sophia Gardens. ATMs are available at Cardiff, Sophia Gardens.
Ticket office support is available at Cardiff, Sophia Gardens.
Available at Cardiff, Sophia Gardens: Parking, Taxis, WC.
Accessibility facilities are available at Cardiff, Sophia Gardens: Basic accessibility features available.
Cardiff, North Road (Friary Gardens) has practical services for this route, including Wifi, Parking, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Wi-Fi is available at Cardiff, North Road (Friary Gardens). ATMs are available at Cardiff, North Road (Friary Gardens).
Ticket office support is available at Cardiff, North Road (Friary Gardens).
Available at Cardiff, North Road (Friary Gardens): Parking, Taxis, WC.
Accessibility facilities are available at Cardiff, North Road (Friary Gardens): Accessible for passengers with reduced mobility.
Portsmouth, The Hard Interchange is 1 km from Portsmouth city centre. Public transport options include:
Portsmouth, The Hard Interchange has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, and Ticket Office.
Food options include: Café at The Hard (in the station), Fast Food Outlet (in the station).
Free Wi-Fi. ATMs are located near the entrance.
Ticket office support is available at Portsmouth, The Hard Interchange.
Available at Portsmouth, The Hard Interchange: Parking, Taxis, WC.
Accessibility facilities are available at Portsmouth, The Hard Interchange: Elevators, ramps.
Portsmouth, International Port is 1 km from Portsmouth city centre. Public transport options include:
Portsmouth, International Port has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, and Ticket Office.
Food options include: Café in the terminal (in the station), Fast-food outlet (in the station).
Free Wi-Fi. ATMs are located near the entrance of the terminal.
Ticket office support is available at Portsmouth, International Port.
Available at Portsmouth, International Port: Parking, Taxis, WC.
Accessibility facilities are available at Portsmouth, International Port: Elevators, ramps.
Southsea, Clarence Esplanade is 1 km from Portsmouth city centre. Public transport options include:
Southsea, Clarence Esplanade has practical services for this route, including Wifi, Parking, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Wi-Fi is available at Southsea, Clarence Esplanade. ATMs are available at Southsea, Clarence Esplanade.
Ticket office support is available at Southsea, Clarence Esplanade.
Available at Southsea, Clarence Esplanade: Parking, Taxis, WC.
Accessibility facilities are available at Southsea, Clarence Esplanade: Bus station is accessible for persons with reduced mobility.
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