Bus tickets Portsmouth to Cardiff from £11

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Compare all timetables for the bus from Portsmouth to Cardiff

Here is a selection of the cheapest bus trips from the schedule from Portsmouth to Cardiff from various bus operators like National Express for the next days.

today
tomorrow
£17
Thursday
Friday
£16
Saturday
£25
Sunday
£25
Monday
£16

Cheapest bus trips tomorrow

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 8h 30m 07:50 Portsmouth The Hard Interchange 16:20 Cardiff Coach Station  Economy £17
National Express 7h 25m 11:05 Portsmouth The Hard Interchange 18:30 Cardiff Coach Station  Economy £18
National Express 6h 50m 14:55 Portsmouth The Hard Interchange 21:45 Cardiff Coach Station  Economy £18
National Express 6h 10m 18:45 Portsmouth The Hard Interchange 00:55 Cardiff Coach Station  Economy £18
National Express 7h 10m 09:20 Portsmouth The Hard Interchange 16:30 Cardiff Coach Station  Economy £38
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than £3? You can find the corresponding connections below.
    • National Express
      9h 5m
      0
      03:05
      Portsmouth
      University
      09:15
      Bristol
      Coach Station
      0
      National Express
      Economy
      £7
      • Waiting Time 1h 25m
    • FlixBus
      1h 30m
      0
      10:40
      Bristol
      Coach Station
      12:10
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £7
    Travel time is 2h 55m longer, but you will save £3

Cheapest bus trips Friday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 7h 20m 12:35 Portsmouth The Hard Interchange 19:55 Cardiff Coach Station  Economy £16
National Express 6h 15m 18:45 Portsmouth The Hard Interchange 01:00 Cardiff Coach Station  Economy £16
National Express 6h 50m 07:20 Portsmouth The Hard Interchange 14:10 Cardiff Coach Station  Economy £25
National Express 6h 10m 10:50 Portsmouth The Hard Interchange 17:00 Cardiff Coach Station  Economy £30
National Express 5h 55m 16:45 Portsmouth The Hard Interchange 22:40 Cardiff Coach Station  Economy £32
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than £6? You can find the corresponding connections below.
    • National Express
      6h 56m
      0
      18:29
      Portsmouth
      University
      00:05
      Bristol
      Coach Station
      0
      National Express
      Economy
      £7
      • Waiting Time 0h 5m
    • FlixBus
      1h 15m
      0
      00:10
      Bristol
      Coach Station
      01:25
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £3
    Travel time is 1h 1m longer, but you will save £6

Cheapest bus trips Saturday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 6h 30m 07:40 Portsmouth The Hard Interchange 14:10 Cardiff Coach Station  Economy £25
National Express 6h 40m 12:35 Portsmouth The Hard Interchange 19:15 Cardiff Coach Station  Economy £25
National Express 6h 15m 18:45 Portsmouth The Hard Interchange 01:00 Cardiff Coach Station  Economy £25
National Express 5h 30m 20:10 Portsmouth The Hard Interchange 01:40 Cardiff Coach Station  Economy £40
National Express 5h 45m 16:55 Portsmouth The Hard Interchange 22:40 Cardiff Coach Station  Economy £43
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than £15? You can find the corresponding connections below.
    • National Express
      6h 56m
      0
      18:29
      Portsmouth
      University
      00:05
      Bristol
      Coach Station
      0
      National Express
      Economy
      £7
      • Waiting Time 0h 5m
    • FlixBus
      1h 15m
      0
      00:10
      Bristol
      Coach Station
      01:25
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £3
    Travel time is 1h 26m longer, but you will save £15

Cheapest bus trips Sunday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 6h 15m 18:45 Portsmouth The Hard Interchange 01:00 Cardiff Coach Station  Economy £25
National Express 6h 30m 07:40 Portsmouth The Hard Interchange 14:10 Cardiff Coach Station  Economy £26
National Express 6h 40m 12:35 Portsmouth The Hard Interchange 19:15 Cardiff Coach Station  Economy £28
National Express 5h 30m 20:10 Portsmouth The Hard Interchange 01:40 Cardiff Coach Station  Economy £40
National Express 6h 0m 13:50 Portsmouth The Hard Interchange 19:50 Cardiff Coach Station  Economy £48
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than £15? You can find the corresponding connections below.
    • National Express
      6h 56m
      0
      18:29
      Portsmouth
      University
      00:05
      Bristol
      Coach Station
      0
      National Express
      Economy
      £7
      • Waiting Time 0h 5m
    • FlixBus
      1h 15m
      0
      00:10
      Bristol
      Coach Station
      01:25
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £3
    Travel time is 1h 26m longer, but you will save £15

Cheapest bus trips Monday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 7h 0m 12:35 Portsmouth The Hard Interchange 19:35 Cardiff Coach Station  Economy £16
National Express 6h 15m 18:45 Portsmouth The Hard Interchange 01:00 Cardiff Coach Station  Economy £16
National Express 6h 50m 07:20 Portsmouth The Hard Interchange 14:10 Cardiff Coach Station  Economy £17
National Express 7h 40m 03:20 Portsmouth The Hard Interchange 11:00 Cardiff Coach Station  Economy £32
National Express 5h 55m 16:45 Portsmouth The Hard Interchange 22:40 Cardiff Coach Station  Economy £32
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than £6? You can find the corresponding connections below.
    • National Express
      6h 56m
      0
      18:29
      Portsmouth
      University
      00:05
      Bristol
      Coach Station
      0
      National Express
      Economy
      £7
      • Waiting Time 0h 5m
    • FlixBus
      1h 15m
      0
      00:10
      Bristol
      Coach Station
      01:25
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £3
    Travel time is 1h 1m longer, but you will save £6

Best Price Offer: The price for the cheapest coach from Portsmouth to Cardiff is £11 on 29/05/2026. Flexible travellers save on ticket prices.


Frequency of bus connections between Portsmouth and Cardiff

See here how frequent the connections between Portsmouth and Cardiff are, during different times and days of the week.
Monday is the busiest day, with more than 10 daily coaches from Portsmouth to Cardiff. Monday has instead the fewest connections, with only 10 daily coaches between Portsmouth and Cardiff.
The busiest time of the day is the Morning, with 17 coaches from Portsmouth to Cardiff, while Night sees the fewest connections between Portsmouth and Cardiff, with 8 offers.

Facts about coaches from Portsmouth to Cardiff

Compare all providers like National Express that travel 10 times every day by bus from Portsmouth to Cardiff in one click! Book your bus ticket from Portsmouth to Cardiff starting from £11!

Cheapest Bus £11
Fastest Bus 5h 30m
Earliest Coach 03:20
Latest Coach 20:10
Daily Bus Connections 10 Ø
Distance 163.8 km
Coach Companies National Express

Cheapest coach connections from Portsmouth to Cardiff

Every day, 10 buses from 1 coach companies leave Portsmouth for Cardiff: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 05/05/2026 and for the following days.

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday 04/05
Tuesday 05/05
Wednesday 06/05
£17
Thursday 07/05
Friday 08/05
£16
Saturday 09/05
£25
Sunday 10/05
£25
Monday 11/05
£16
Tuesday 12/05
£16
Wednesday 13/05
£16
Thursday 14/05
£16
Friday 15/05
£25
Saturday 16/05
£25
Sunday 17/05
£25
Monday 18/05
£16
Tuesday 19/05
£16
Wednesday 20/05
£16
Thursday 21/05
£16
Friday 22/05
£16
Saturday 23/05
£16
Sunday 24/05
£16
Monday 25/05
£25
Tuesday 26/05
£25
Wednesday 27/05
£25
Thursday 28/05
£25
Friday 29/05
£11
Saturday 30/05
£16
Sunday 31/05

The cheapest time to travel from Portsmouth to Cardiff

See here on which day and which time of the day you can find the cheapest bus ticket from Portsmouth to Cardiff, for the next 30 days.
With a price starting from £11, Friday is the cheapest day for a coach from Portsmouth to Cardiff. Monday instead is the most expensive day with prices starting from £16.
Night is the cheapest day time for bus tickets from Portsmouth to Cardiff, with £11. Morning is the most expensive time of the day with prices starting from £17.

How to save money travelling from Portsmouth to Cardiff

Travel can be expensive, but it doesn't need to be! Do you want to avoid paying a terrible price for your trip? Then follow these quick steps to save money:

Book the ticket from Portsmouth to Cardiff in advance! The earlier you book, the cheaper usually the price is. Also, you will be sure to have a place on the bus from Portsmouth to Cardiff, compared instead if you buy it at the last moment, or directly at the station.

If you can, avoid travelling at peak times. Instead of weekend, try travelling during the week. Travelling in the evening or at night it’s also cheaper, and later coaches from Portsmouth to Cardiff are also emptier.

Beloved bus companies from Portsmouth to Cardiff

These are the most booked bus companies between Portsmouth to Cardiff from our users.

National Express from Portsmouth to Cardiff

National Express

Here you will find the key facts about the National Express bus route Portsmouth to Cardiff:

Cheapest Price £16
Fastest Coach 5h 30m
Earliest Coach 03:20
Last Coach 20:10
Daily Connections 10 Ø
Found on 30/04/2026

All bus stations and stops in Portsmouth and Cardiff

The map below shows you where to find all the bus stations in Portsmouth and Cardiff.

Compare the bus with other modes of transport

The bus is often the cheapest mode of transport, while other modes like train or flight are faster. Looking for quicker alternatives to travel from Portsmouth to Cardiff? Compare all modes of transports from Portsmouth to Cardiff.

Service and Comfort on the bus from Portsmouth to Cardiff

Want to know which seat classes are available on the coaches from Portsmouth to Cardiff? Or which bus companies serve the route Portsmouth to Cardiff? Below you will find answers to your questions.

FAQs about the Portsmouth to Cardiff bus

How much does a Portsmouth - Cardiff coach trip cost?

This depends on, among other things, the day and travel time. The cheapest ticket for the Portsmouth - Cardiff bus trip is available from £11 and takes 7h 20m. Compare offers and save money!

How much could I save by comparing buses from Portsmouth to Cardiff?

The connection Portsmouth to Cardiff is offered by 1 companies with ticket prices ranging from £11 to £56. Therefore, we suggest booking your ticket as soon as possible to ensure you will get the cheapest ticket price.

How many connections are available for the Portsmouth - Cardiff route on average every day?

Each day, the bus route from Portsmouth to Cardiff is offered by roughly 10 busses. By using our search, you can compare bus schedules and find your ideal trip.

How long does a bus to Cardiff from Portsmouth take?

The quickest coach from Portsmouth to Cardiff is provided by National Express and takes 5h 30m. Coach tickets for this connection cost £38. However, keep in mind that the connection can take longer due to traffic.

What time is the first bus from Portsmouth to Cardiff?

The earliest bus to Cardiff departs from Portsmouth at 03:20. In this context, information about departure times may differ on weekends and holidays. Simply use our search to find the exact times for your planned travel date.

What time is the last coach from Portsmouth to Cardiff?

The latest bus to Cardiff departs from Portsmouth at 20:10. Please note that departure times may differ on weekends and holidays. Simply use our search to find the exact times for your planned travel date.

Which bus companies serve the Portsmouth - Cardiff route?

Passengers looking to travel from Portsmouth to Cardiff can travel with National Express. Compare all available bus tickets with our search to book the trip that works best for you.

Is there a direct bus between Portsmouth and Cardiff?

You can check all the direct connections between Portsmouth and Cardiff by using our search and looking at the Changes section in our filters. These are some of the companies which offer a direct bus: National Express.

What can I take with me on the bus to Cardiff from Portsmouth?

Depending on which provider you travel with, what you are allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the bus for the Portsmouth Cardiff bus route free of charge. Simply use our search to find a coach that is best suited to your needs for your planned travel date.

What equipment is available for the Portsmouth Cardiff bus route?

The equipment on board differs depending on the provider. However, many long-distance buses have WiFi so you can tell your friends your exact location during the journey. To make travelling even more pleasant, air conditioning systems provide ventilation. It is best to use our search to get precise information about the equipment of the bus from Portsmouth to Cardiff on your planned travel date.

How does CheckMyBus find the best bus deals from Portsmouth to Cardiff?

CheckMyBus collaborates directly with companies around the world to provide you with the best options when searching for a trip. We retrieve their first-hand data to show you real-time prices, schedules, and seat availability for 10 daily trips between Portsmouth and Cardiff. With the most up-to-date information from verified sources, you can fairly compare all available options and choose the trip that suits you best.

How does CheckMyBus technology work for trips from Portsmouth to Cardiff?

Prices and availability for 10 trips between Portsmouth and Cardiff change constantly. To provide you with the most up-to-date information, we connect directly with bus operators, Online Travel Agencies (OTAs), and Global Distribution Systems (GDS) via real-time interfaces (APIs). The data collected from these sources undergoes strict quality checks, is processed within our infrastructure, and is then presented to you on our search results pages. Visit our About Us page to learn more.

Available seat classes which are offered on the bus route Portsmouth to Cardiff

Economy
Economy

The cheapest option available for your ticket, it usually comes with reclinable seats and AC.

More bus routes to Portsmouth and to Cardiff

Here’s an overview of the most popular bus routes to Portsmouth and to Cardiff. Simply click on the connection of your choice, and you will find all the details about your bus route!
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Bus from Tonbridge to Cardiff Bus from Tonbridge to Cardiff
Bus to Cardiff from Presov Bus to Cardiff from Presov
Aviemore to Cardiff coach Aviemore to Cardiff coach
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Popular Airport Transfers to Portsmouth and to Cardiff
CheckMyBus › Coaches in United Kingdom › Coach to Portsmouth › Coach to Cardiff

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