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
£33
tomorrow
£42
Saturday
£38
Sunday
£38
Monday
£37
Tuesday
£34
Wednesday
£41

Cheapest bus trips today

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 £33
National Express 7h 25m 11:05 Portsmouth The Hard Interchange 18:30 Cardiff Coach Station  Economy £33
National Express 6h 50m 14:55 Portsmouth The Hard Interchange 21:45 Cardiff Coach Station  Economy £33
National Express 6h 10m 18:45 Portsmouth The Hard Interchange 00:55 Cardiff Coach Station  Economy £33
National Express 5h 45m 12:55 Portsmouth The Hard Interchange 18:40 Cardiff Coach Station  Economy £42

Cheapest bus trips tomorrow

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 6h 50m 07:20 Portsmouth The Hard Interchange 14:10 Cardiff Coach Station  Economy £42
National Express 7h 20m 12:35 Portsmouth The Hard Interchange 19:55 Cardiff Coach Station  Economy £42
National Express 6h 15m 18:45 Portsmouth The Hard Interchange 01:00 Cardiff Coach Station  Economy £42
National Express 7h 40m 03:20 Portsmouth The Hard Interchange 11:00 Cardiff Coach Station  Economy £61
National Express 6h 25m 08:20 Portsmouth The Hard Interchange 14:45 Cardiff Coach Station  Economy £61
  • 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
      7h 40m
      0
      03:20
      Portsmouth
      The Hard Interchange
      09:15
      Bristol
      Coach Station
      0
      National Express
      Economy
      £30
      • Waiting Time 0h 25m
    • National Express
      1h 20m
      0
      09:40
      Bristol
      Coach Station
      11:00
      Cardiff
      Coach Station
      0
      National Express
      Economy
      £7
    Travel time is 1h 25m 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 40m 12:35 Portsmouth The Hard Interchange 19:15 Cardiff Coach Station  Economy £38
National Express 6h 15m 18:45 Portsmouth The Hard Interchange 01:00 Cardiff Coach Station  Economy £38
National Express 6h 30m 07:40 Portsmouth The Hard Interchange 14:10 Cardiff Coach Station  Economy £42
National Express 7h 40m 03:20 Portsmouth The Hard Interchange 11:00 Cardiff Coach Station  Economy £51
National Express 5h 55m 08:30 Portsmouth The Hard Interchange 14:25 Cardiff Coach Station  Economy £51

Cheapest bus trips Sunday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 6h 40m 12:35 Portsmouth The Hard Interchange 19:15 Cardiff Coach Station  Economy £38
National Express 6h 15m 18:45 Portsmouth The Hard Interchange 01:00 Cardiff Coach Station  Economy £38
National Express 6h 30m 07:40 Portsmouth The Hard Interchange 14:10 Cardiff Coach Station  Economy £42
National Express 7h 40m 03:20 Portsmouth The Hard Interchange 11:00 Cardiff Coach Station  Economy £56
National Express 5h 35m 10:50 Portsmouth The Hard Interchange 16:25 Cardiff Coach Station  Economy £56

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 £37
National Express 6h 15m 18:45 Portsmouth The Hard Interchange 01:00 Cardiff Coach Station  Economy £37
National Express 6h 50m 07:20 Portsmouth The Hard Interchange 14:10 Cardiff Coach Station  Economy £45
National Express 7h 40m 03:20 Portsmouth The Hard Interchange 11:00 Cardiff Coach Station  Economy £59
National Express 5h 55m 10:50 Portsmouth The Hard Interchange 16:45 Cardiff Coach Station  Economy £59

Cheapest bus trips Tuesday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 6h 50m 14:55 Portsmouth The Hard Interchange 21:45 Cardiff Coach Station  Economy £34
National Express 6h 10m 18:45 Portsmouth The Hard Interchange 00:55 Cardiff Coach Station  Economy £34
National Express 8h 30m 07:50 Portsmouth The Hard Interchange 16:20 Cardiff Coach Station  Economy £36
National Express 7h 25m 11:05 Portsmouth The Hard Interchange 18:30 Cardiff Coach Station  Economy £40
National Express 7h 40m 03:20 Portsmouth The Hard Interchange 11:00 Cardiff Coach Station  Economy £52

Cheapest bus trips Wednesday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 7h 25m 11:05 Portsmouth The Hard Interchange 18:30 Cardiff Coach Station  Economy £41
National Express 6h 50m 14:55 Portsmouth The Hard Interchange 21:45 Cardiff Coach Station  Economy £41
National Express 6h 10m 18:45 Portsmouth The Hard Interchange 00:55 Cardiff Coach Station  Economy £41
National Express 8h 30m 07:50 Portsmouth The Hard Interchange 16:20 Cardiff Coach Station  Economy £42
National Express 7h 40m 03:20 Portsmouth The Hard Interchange 11:00 Cardiff Coach Station  Economy £66
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than £7? You can find the corresponding connections below.
    • National Express
      8h 30m
      0
      08:00
      Portsmouth
      International Port
      14:30
      Bristol
      Coach Station
      0
      National Express
      Economy
      £26
      • Waiting Time 0h 25m
    • National Express
      1h 35m
      0
      14:55
      Bristol
      Coach Station
      16:30
      Cardiff
      Coach Station
      0
      National Express
      Economy
      £8
    Travel time is 2h 20m longer, but you will save £7

Best Price Offer: The price for the cheapest coach from Portsmouth to Cardiff is £11 on 06/01/2026. 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. Thursday has instead the fewest connections, with only 8 daily coaches between Portsmouth and Cardiff.
The busiest time of the day is the Morning, with 23 coaches from Portsmouth to Cardiff, while Night sees the fewest connections between Portsmouth and Cardiff, with 10 offers.

Facts about coaches from Portsmouth to Cardiff

Compare all providers like National Express that travel 9 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 07:50
Latest Coach 18:45
Daily Bus Connections 9 Ø
Distance 163.8 km
Coach Companies National Express

Cheapest coach connections from Portsmouth to Cardiff

Every day, 9 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 18/12/2025 and for the following days.

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday 15/12
Tuesday 16/12
Wednesday 17/12
Thursday 18/12
£33
Friday 19/12
£42
Saturday 20/12
£38
Sunday 21/12
£38
Monday 22/12
£37
Tuesday 23/12
£34
Wednesday 24/12
£41
Thursday 25/12
£120
Friday 26/12
£61
Saturday 27/12
£43
Sunday 28/12
£43
Monday 29/12
Tuesday 30/12
£35
Wednesday 31/12
Thursday 01/01
£46
Friday 02/01
£27
Saturday 03/01
Sunday 04/01
£30
Monday 05/01
Tuesday 06/01
£11
Wednesday 07/01
£11
Thursday 08/01
Friday 09/01
£11
Saturday 10/01
£11
Sunday 11/01

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, Monday is the cheapest day for a coach from Portsmouth to Cardiff. Thursday instead is the most expensive day with prices starting from £33.
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 £33.

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 £33
Fastest Coach 5h 30m
Earliest Coach 07:50
Last Coach 18:45
Daily Connections 9 Ø
Found on 16/12/2025

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 8h 30m. 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 £69. 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 9 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 £42. 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 07:50. 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 18:45. 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 9 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 9 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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Coach to Cardiff from Bristol Coach to Cardiff from Bristol
Bus from Swansea to Cardiff Bus from Swansea to Cardiff
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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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