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The cheapest and fastest buses from Cardiff to Portsmouth
Showing times and prices for May 07
Cheapest price
$32
Average price
$61
Fastest journey
5 h 25 m
Average duration
6 h 33 m
Buses per day
8
Distance
164 km
Cheap tickets
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 $61 if you buy it on the day, but the cheapest tickets can be found for only $32.
Fast buses
It's difficult to get from Cardiff to Portsmouth without transferring at least once.
NX509 · NX03012:30 PM7h10Cardiff, Sophia Gardens7:40 PMPortsmouth, The Hard Interchange$321One-way1 transfer- NX509 · NX0309:00 AM7h00Cardiff, Sophia Gardens4:00 PMPortsmouth, The Hard Interchange$321One-way1 transfer
- NX509 · NX0307:15 PM7h00Cardiff, Sophia Gardens2:15 AMPortsmouth, The Hard Interchange$351One-way1 transfer
- NX202 · NX0302:55 PM6h30Cardiff, Sophia Gardens9:25 PMPortsmouth, The Hard Interchange$651One-way1 transfer
- NX201 · NX0305:25 AM5h25Cardiff, Sophia Gardens10:50 AMPortsmouth, The Hard Interchange$761One-way1 transfer
- NX201 · NX0305:25 AM5h25Cardiff, Sophia Gardens10:50 AMPortsmouth, The Hard Interchange$761One-way1 transfer
- NX202 · NX0302:55 PM6h30Cardiff, Sophia Gardens9:25 PMPortsmouth, The Hard Interchange$651One-way1 transfer
- NX201 · NX03011:40 AM6h50Cardiff, Sophia Gardens6:30 PMPortsmouth, The Hard Interchange$931One-way1 transfer
- NX509 · NX0309:00 AM7h00Cardiff, Sophia Gardens4:00 PMPortsmouth, The Hard Interchange$321One-way1 transfer
- NX509 · NX0307:15 PM7h00Cardiff, Sophia Gardens2:15 AMPortsmouth, The Hard Interchange$351One-way1 transfer
Travel Information
Compare train and bus for Cardiff to Portsmouth
Omio 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 $18. For those with little time consider booking a train which can get you there in 3h 19m. 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 $18, and a train costs an average of $43.
Distance: 101 miles (164 km)
Compare bus with
| Bus | Most popular Train |
|---|---|
$37 Average price Cheapest | $95 Average price |
6h 46m Average total duration 6h 16m Onboard + 30m Additional time* | 3h 49m Average total duration Fastest 3h 19m Onboard + 30m Additional time* |
0.2 - 0.4kg CO2 emissions | 0.0 - 0.1kg CO2 emissions Lowest |
Most popular bus company |  Most popular train company |
Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Cardiff to Portsmouth Bus Timetables
| 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 | Cheapest price $73 |
Operator National Express | Departure Time 05:25AM | Arrival Time 10:50AM | Duration 5h25 | Departure days Thu | Cheapest price $76 |
Operator National Express | Departure Time 05:55AM | Arrival Time 12:15PM | Duration 6h20 | Departure days Sat | Cheapest price $54 |
Operator National Express | Departure Time 07:20AM | Arrival Time 02:20PM | Duration 7h00 | Departure days Thu | Cheapest price $82 |
Operator National Express | Departure Time 07:30AM | Arrival Time 01:55PM | Duration 6h25 | Departure days Sat | Cheapest price $78 |
Operator National Express | Departure Time 07:45AM | Arrival Time 02:55PM | Duration 7h10 | Departure days Sat | Cheapest price $54 |
Operator National Express | Departure Time 09:00AM | Arrival Time 04:00PM | Duration 7h00 | Departure days Thu | Cheapest price $32 |
Operator National Express | Departure Time 10:40AM | Arrival Time 04:25PM | Duration 5h45 | Departure days Sat | Cheapest price $80 |
Operator National Express | Departure Time 11:40AM | Arrival Time 06:30PM | Duration 6h50 | Departure days Thu | Cheapest price $93 |
Operator National Express | Departure Time 12:30PM | Arrival Time 07:40PM | Duration 7h10 | Departure days Thu | Cheapest price $32 |
Operator National Express | Departure Time 12:35PM | Arrival Time 06:50PM | Duration 6h15 | Departure days Sat | Cheapest price $87 |
Operator National Express | Departure Time 02:55PM | Arrival Time 09:25PM | Duration 6h30 | Departure days Thu | Cheapest price $65 |
Operator National Express | Departure Time 03:05PM | Arrival Time 09:50PM | Duration 6h45 | Departure days Sat | Cheapest price $80 |
Operator National Express | Departure Time 04:00PM | Arrival Time 11:00PM | Duration 7h00 | Departure days Sat | Cheapest price $43 |
Operator National Express | Departure Time 04:30PM | Arrival Time 12:30AM | Duration 8h00 | Departure days Thu | Cheapest price $76 |
Operator National Express | Departure Time 05:30PM | Arrival Time 12:30AM | Duration 7h00 | Departure days Sat | Cheapest price $43 |
Operator National Express | Departure Time 07:15PM | Arrival Time 02:15AM | Duration 7h00 | Departure days Thu | Cheapest price $35 |
Operator National Express | Departure Time 07:45PM | Arrival Time 02:15AM | Duration 6h30 | Departure days Sat | Cheapest price $46 |
Live departures
Cardiff to Portsmouth bus times
The table below shows live departures for Cardiff to Portsmouth buses for today, Wednesday, May 6. You can also manually refresh the results below to see updated bus journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| 7:15 PM Cardiff | 7h00 | 2:15 AM Portsmouth | 0 transfersDirect | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Cardiff to Portsmouth 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.
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May 07
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Why should you book Cardiff to Portsmouth buses with Omio?
National Express operates all buses services from Cardiff to Portsmouth.
Omio is an official ticket reseller for all your travel options from Cardiff to Portsmouth.
Why book with Omio vs National Express?
- 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 National Express with all available travel options, which are train and bus to ensure you get the best deal for traveling from Cardiff to Portsmouth.
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 Cardiff to Portsmouth.
Journey information
Overview: Bus from Cardiff to Portsmouth
United KingdomUnited Kingdom
Buses from Cardiff to Portsmouth run on average 9 times per day, taking around 6h 16m. Cheap bus tickets for this journey start at $18 (€14) if you book in advance.
The earliest bus runs at 03:05, the last at 21:20. The fastest bus covers the 101 miles (164 km) distance in 6h 10m.
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
Distance 101 miles (164 km) |
Average bus duration 6h 16m |
Cheapest ticket price $18 (€14) |
Buses per day 9 |
Fastest bus 6h 10m |
First bus 3:05 AM |
Last bus 9:20 PM |
Cheapest Month Aug |
Cheapest Day Sat |
High Season Jul - Sep |
Low Season Jan - Mar |
Busiest Day Fri |
Least Busy Day Sun |
Best time to book 91 days |
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
Bus providers: National Express from Cardiff to PortsmouthYou can travel by bus between Cardiff to Portsmouth with National Express for as low as $18 (€14). When you search for schedules and tickets, Omio will show you the best journey
National Express
About
National Express is the UK’s leading long-distance coach company, operating over 550 services per day and serving more than 900 destinations nationwide. It also runs frequent services to major UK airports — including Heathrow, Gatwick, Stansted, Luton, and Bristol — 24 hours a day. All National Express coaches are air-conditioned and offer free Wi-Fi and onboard entertainment. Most vehicles are equipped with seat belts and power outlets at every seat, allowing you to charge your phone or laptop during your journey. Ticket options include Restricted Fare, Standard Fare, and Fully Flexible Fare, with the latter providing maximum flexibility for cancellations or changes.
Luggage & cancellation policy
Average Duration
6h 10m
Cheapest Price
$18 (€14)
Luggage included
Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
Additional luggage
10€ per additional bag.
Cancellation Policy
You can cancel your ticket up to 24 hours before departure for a refund minus a cancellation fee. Changes can be up to 24 hours before departure for a fee.
Amenities on board the bus
Wifi
Food sold onboard
Seat reservation
Toilets
USB plugs
Accessibility
Assistance; Priority seating; Accessible toilets.
Bikes
Folding Bikes are allowed; non-folding bikes are not allowed.
FAQs: Bus from Cardiff to 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.
Cheap bus tickets from Cardiff to Portsmouth can start from as little as $18 (€14) when you book in advance. The average bus ticket price for Cardiff to Portsmouth is $37 (€30) ; 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 bus from Cardiff to Portsmouth is 6h 10m to travel the 101 miles (164 km) long journey. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest bus from Cardiff to Portsmouth leaves at 3:05 AM. Plan your trip with the Journey Planner from Omio.
The latest bus from Cardiff to Portsmouth leaves at 9:20 PM.
There are 9 buses a day from Cardiff to Portsmouth which require at least one change with National Express. Schedules can vary on holidays or weekends with fewer buses.
When taking a bus from Cardiff to Portsmouth, you can count on National Express for the best way to get you to Portsmouth. You can also check all possible bus companies who offer a service between Cardiff and Portsmouth and compare the amenities they offer before buying a bus ticket.
A trip to Portsmouth from Cardiff is worth doing but not as a day trip with a journey time of 6h 10m each way. Check with Omio app the best way to travel.
The cheapest month for a bus from Cardiff to Portsmouth is August.
It's helpful to compare your options as there are 2 ways to travel between Cardiff and Portsmouth including taking a train and bus.
Yes, the following accessibility options are available when taking the bus from Cardiff to Portsmouth:
- National Express
- Assistance
- Priority seating
- Accessible toilets.
Yes, there are bathrooms on board the bus from Cardiff to Portsmouth for bus company National Express.
Whether you can cancel your bus ticket from Cardiff to Portsmouth depends on the bus companies:
- National Express
- You can cancel your ticket up to 24 hours before departure for a refund minus a cancellation fee. Changes can be up to 24 hours before departure for a fee.
Yes, bikes are allowed on board the bus with bus company National Express.
Tickets are often cheaper when booked early. Traveling during off-peak hours or on weekdays can help you save money. Sort results by price to quickly identify the most affordable options. Check for promotions or discounts available on our website and app.
Yes, there is food available to purchase on board the bus from Cardiff to Portsmouth.
Yes, the following luggage options are included when booking a bus ticket from Cardiff to Portsmouth:
- National Express
- Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
Yes, the following additional luggage options are available when booking a bus ticket from Cardiff to Portsmouth:
- National Express
- 10€ per additional bag.
Unfortunately, pets are not allowed on the bus from Cardiff to Portsmouth.
You can reserve your seat on the bus from Cardiff to Portsmouth with the following bus company: National Express
Yes, there are USB plugs on board the bus from Cardiff to Portsmouth with the following bus company: National Express.
Yes, there is Wifi on board the bus from Cardiff to Portsmouth with the following bus company: National Express.
Since neither Cardiff nor Portsmouth are in the Schengen Area, passport requirements depend on the specific immigration rules of United Kingdom and United Kingdom. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
We recommend using the train as it is the most popular way to get from Cardiff to Portsmouth among Omio's users.
The currency used in the United Kingdom is the British Pound Sterling (GBP). For travelers, using a card is generally more convenient and widely accepted, especially in cities and for transportation tickets, though carrying some cash can be useful for small purchases or in rural areas.
In Portsmouth, travelers should be cautious of pickpocketing, especially in crowded areas like the Historic Dockyard and Gunwharf Quays. Common scams include overcharging by taxi drivers and unofficial street vendors selling counterfeit goods. It is advisable to use licensed taxis, keep personal belongings secure, and remain vigilant when approached by strangers offering unsolicited services or deals.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.
popular bus stations
Popular bus stations from Cardiff to Portsmouth
Cardiff
Portsmouth
The major bus station for departures in Cardiff is Cardiff, Sophia Gardens. Find all the information you need to know about services, amenities and connections at Cardiff, Sophia Gardens for your trip from Cardiff to Portsmouth.
Cardiff, Sophia Gardens
information
Cardiff, North Road (Friary Gardens)
information
Cardiff, University
information
The major bus station for arrivals in Portsmouth is Portsmouth, The Hard Interchange. Find all the information you need to know about services, amenities and connections at Portsmouth, The Hard Interchange for your trip to Portsmouth from Cardiff.
Amenities at bus station
Wifi
Parking
Dining
ATM
Taxis
Accessibility
WC
Ticket Officeinformation
Ticket Office Hours
- 05:00-23:00
Distance to city center
1 km
Car connection
The HardWifi
- Free Wi-Fi
Dining
- Café at The Hard (in the station)
- Fast Food Outlet (in the station).
Taxis
- Available outside the main entrance.
Accessibility
- Elevators, ramps
WC
- Available near the waiting area.
Public transit options for Portsmouth, The Hard Interchange
- Bus: 1, 2, 3, 7, 8, 13, 14 Train: South Western Railway, Southern, Great Western Railway
Portsmouth, University
information
Amenities at bus station
WifiParkingDiningATMTaxisAccessibilityWCTicket Officeinformation
Ticket Office Hours
- 06:00-22:00
Distance to city center
1 kmCar connection
Wharf RoadWifi
- Free Wi-Fi
Dining
- Café in the terminal (in the station)
- Fast-food outlet (in the station).
Taxis
- Available outside the main entrance.
Accessibility
- Elevators, ramps
WC
- Available in the station.
Public transit options for Portsmouth, International Port
- Bus: 8, 20, 700 Train: Portsmouth Harbour
More options for your journey from Cardiff to Portsmouth
Here are some other resources that might have the information you need
Most popular buses to and from Portsmouth and Cardiff
Most popular bus connections to Portsmouth
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