4.9
4.6The cheapest and fastest buses from Cardiff to Portsmouth
Cheapest price
$19
Average price
$23
Fastest journey
6 h 25 m
Average duration
6 h 51 m
Buses per day
4
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 $23 if you buy it on the day, but the cheapest tickets can be found for only $19.
Of the 4 buses that leave Cardiff for Portsmouth on Sun, Mar 22, 4 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Sun, Mar 22 the direct buses cover the 164 km distance in an average of 6 h 51 m but if you time it right, some buses will get you there in just 6 h 25 m .
On Sun, Mar 22 the slowest buses will take 7 h 20 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.
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 $42.
Distance: 101 miles (164 km)
Compare bus with
| Bus | Most popular Train |
|---|---|
$37 Average price Cheapest | $94 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 $69 |
Operator National Express | Departure Time 05:25AM | Arrival Time 10:50AM | Duration 5h25 | Departure days Tue | Cheapest price $66 |
Operator National Express | Departure Time 05:55AM | Arrival Time 12:15PM | Duration 6h20 | Departure days Sat | Cheapest price $80 |
Operator National Express | Departure Time 07:20AM | Arrival Time 02:20PM | Duration 7h00 | Departure days Tue | Cheapest price $83 |
Operator National Express | Departure Time 07:30AM | Arrival Time 01:55PM | Duration 6h25 | Departure days Sat | Cheapest price $105 |
Operator National Express | Departure Time 09:00AM | Arrival Time 04:00PM | Duration 7h00 | Departure days Tue | Cheapest price $37 |
Operator National Express | Departure Time 11:40AM | Arrival Time 06:30PM | Duration 6h50 | Departure days Tue | Cheapest price $113 |
Operator National Express | Departure Time 12:30PM | Arrival Time 07:40PM | Duration 7h10 | Departure days Tue | Cheapest price $45 |
Operator National Express | Departure Time 02:55PM | Arrival Time 09:25PM | Duration 6h30 | Departure days Tue | Cheapest price $73 |
Operator National Express | Departure Time 03:05PM | Arrival Time 09:50PM | Duration 6h45 | Departure days Sat | Cheapest price $95 |
Operator National Express | Departure Time 04:00PM | Arrival Time 11:00PM | Duration 7h00 | Departure days Sat | Cheapest price $46 |
Operator National Express | Departure Time 04:30PM | Arrival Time 12:30AM | Duration 8h00 | Departure days Tue | Cheapest price $70 |
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 Tue | Cheapest price $46 |
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 tomorrow, Saturday, March 21. You can also manually refresh the results below to see updated bus journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| 3:20 AM Cardiff | 7h20 | 10:40 AM Portsmouth | 0 transfersDirect | |
| 6:00 AM Cardiff | 6h25 | 12:25 PM Portsmouth | 0 transfersDirect | |
| 7:45 AM Cardiff | 7h10 | 2:55 PM Portsmouth | 0 transfersDirect | |
| 7:45 PM Cardiff | 6h30 | 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.
Mar 22
Mar 23
Mar 24
Mar 25
Mar 26
Mar 27
Mar 28
Why should you book Cardiff to Portsmouth buses with Omio?
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.
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 03:05 |
Last bus 21:20 |
Cheapest month Aug |
Cheapest day Sat |
High season Jul - Sep |
Low season Oct - Dec |
Busiest day Fri |
Least busy day Mon |
Best day to book ahead 91 days |
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
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.
- National Express
- Assistance
- Priority seating
- Accessible toilets.
- 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.
- National Express
- Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
- National Express
- 10€ per additional bag.
popular bus stations
Popular bus stations from Cardiff to Portsmouth
Wifi
Parking
Dining
ATM
Taxis
Accessibility
WC
Ticket Office
- 05:00-23:00
- Free Wi-Fi
- Café at The Hard (in the station)
- Fast Food Outlet (in the station).
- Available outside the main entrance.
- Elevators, ramps
- Available near the waiting area.
- Bus: 1, 2, 3, 7, 8, 13, 14 Train: South Western Railway, Southern, Great Western Railway
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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