Bus tickets Portsmouth to Cardiff from £20

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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
from £20
tomorrow
from £20
Friday
from £20
Saturday
Sunday
from £20
Monday
Tuesday

Cheapest bus trips today

Prices are for one way and one person
  • National Express
    7h 25m
    0
    11:05
    Portsmouth
    The Hard Interchange
    18:30
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £20
  • National Express
    6h 10m
    0
    18:45
    Portsmouth
    The Hard Interchange
    00:55
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £20
  • National Express
    6h 50m
    0
    14:55
    Portsmouth
    The Hard Interchange
    21:45
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £25
  • National Express
    6h 30m
    0
    05:35
    Portsmouth
    The Hard Interchange
    12:05
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £45
  • National Express
    6h 30m
    0
    16:10
    Portsmouth
    The Hard Interchange
    22:40
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £45
  • 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
      7h 20m
      0
      18:45
      Portsmouth
      The Hard Interchange
      00:05
      Bristol
      Coach Station
      0
      National Express
      Economy
      £8
      • Waiting Time 0h 45m
    • FlixBus
      1h 15m
      0
      00:50
      Bristol
      Coach Station
      02:05
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £5
    Travel time is 1h 10m longer, but you will save £7

Cheapest bus trips tomorrow

Prices are for one way and one person
  • National Express
    7h 25m
    0
    11:05
    Portsmouth
    The Hard Interchange
    18:30
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £20
  • National Express
    6h 10m
    0
    18:45
    Portsmouth
    The Hard Interchange
    00:55
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £20
  • National Express
    6h 50m
    0
    14:55
    Portsmouth
    The Hard Interchange
    21:45
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £25
  • National Express
    7h 40m
    0
    03:20
    Portsmouth
    The Hard Interchange
    11:00
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £45
  • National Express
    5h 30m
    0
    20:10
    Portsmouth
    The Hard Interchange
    01:40
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £45
  • 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
      7h 20m
      0
      18:45
      Portsmouth
      The Hard Interchange
      00:05
      Bristol
      Coach Station
      0
      National Express
      Economy
      £8
      • Waiting Time 0h 45m
    • FlixBus
      1h 15m
      0
      00:50
      Bristol
      Coach Station
      02:05
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £5
    Travel time is 1h 50m longer, but you will save £7

Cheapest bus trips Friday

Prices are for one way and one person
  • National Express
    6h 50m
    0
    07:20
    Portsmouth
    The Hard Interchange
    14:10
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £20
  • National Express
    7h 20m
    0
    12:35
    Portsmouth
    The Hard Interchange
    19:55
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £20
  • National Express
    6h 15m
    0
    18:45
    Portsmouth
    The Hard Interchange
    01:00
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £20
  • National Express
    7h 40m
    0
    03:20
    Portsmouth
    The Hard Interchange
    11:00
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £38
  • National Express
    5h 30m
    0
    20:10
    Portsmouth
    The Hard Interchange
    01:40
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £38
  • 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
      7h 20m
      0
      18:45
      Portsmouth
      The Hard Interchange
      00:05
      Bristol
      Coach Station
      0
      National Express
      Economy
      £8
      • Waiting Time 0h 45m
    • FlixBus
      1h 15m
      0
      00:50
      Bristol
      Coach Station
      02:05
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £5
    Travel time is 1h 50m longer, but you will save £7

Cheapest bus trips Sunday

Prices are for one way and one person
  • National Express
    6h 15m
    0
    18:45
    Portsmouth
    The Hard Interchange
    01:00
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £20
  • National Express
    6h 30m
    0
    07:40
    Portsmouth
    The Hard Interchange
    14:10
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £27
  • National Express
    6h 40m
    0
    12:35
    Portsmouth
    The Hard Interchange
    19:15
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £28
  • National Express
    5h 35m
    0
    10:50
    Portsmouth
    The Hard Interchange
    16:25
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £45
  • National Express
    5h 30m
    0
    20:10
    Portsmouth
    The Hard Interchange
    01:40
    Cardiff
    Coach Station
    0
    National Express
    Economy
    £45
  • 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
      7h 20m
      0
      18:45
      Portsmouth
      The Hard Interchange
      00:05
      Bristol
      Coach Station
      0
      National Express
      Economy
      £8
      • Waiting Time 0h 45m
    • FlixBus
      1h 15m
      0
      00:50
      Bristol
      Coach Station
      02:05
      Cardiff
      Kingsway Coach Stop
      0
      FlixBus
      Economy
      £5
    Travel time is 1h 50m longer, but you will save £7

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.
Friday is the busiest day, with more than 10 daily coaches from Portsmouth to Cardiff. Wednesday has instead the fewest connections, with only 8 daily coaches between Portsmouth and Cardiff.
The busiest time of the day is the Afternoon, with 12 coaches from Portsmouth to Cardiff, while Night sees the fewest connections between Portsmouth and Cardiff, with 6 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 £20!

Cheapest Bus £20
Fastest Bus 5h 30m
Earliest Coach 05:35
Latest Coach 20:10
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 23/04/2025 and for the following days.

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday 21/04
Tuesday 22/04
Wednesday 23/04
£20
Thursday 24/04
£20
Friday 25/04
£20
Saturday 26/04
Sunday 27/04
£20
Monday 28/04
Tuesday 29/04
Wednesday 30/04
Thursday 01/05
£16
Friday 02/05
£20
Saturday 03/05
Sunday 04/05
£20
Monday 05/05
£25
Tuesday 06/05
Wednesday 07/05
£11
Thursday 08/05
£12
Friday 09/05
Saturday 10/05
£11
Sunday 11/05
£11
Monday 12/05
£11
Tuesday 13/05
£11
Wednesday 14/05
£11
Thursday 15/05
£11
Friday 16/05
£11
Saturday 17/05
Sunday 18/05

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 £20, Wednesday is the cheapest day for a coach from Portsmouth to Cardiff. Wednesday instead is the most expensive day with prices starting from £20.
Morning is the cheapest day time for bus tickets from Portsmouth to Cardiff, with £20. Night is the most expensive time of the day with prices starting from £38.

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 £20
Fastest Coach 5h 30m
Earliest Coach 05:35
Last Coach 20:10
Daily Connections 9 Ø
Found on 19/04/2025

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 £20 and takes 7h 25m. 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 £20 to £65. 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 £45. 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 05:35. 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.

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 London to Portsmouth Coach London to Portsmouth
Coach to Cardiff from Bristol Coach to Cardiff from Bristol
Bus from Swansea to Cardiff Bus from Swansea to Cardiff
Bus to Cardiff from Bridgend Bus to Cardiff from Bridgend
Bus Newport (Wales) to Cardiff Bus Newport (Wales) to Cardiff
Popular Airport Transfers to Portsmouth and to Cardiff
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