Bus from Portsmouth to Cardiff from $14

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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 $14
tomorrow
from $14
Thursday
from $14
Friday
from $27
Saturday
from $18
Sunday
from $18
Monday
from $15

Cheapest bus trips today

Prices are for one way and one person
  • National Express
    6h 10m
    0
    6:45 PM
    Portsmouth
    The Hard Interchange
    12:55 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $14
  • National Express
    7h 25m
    0
    11:05 AM
    Portsmouth
    The Hard Interchange
    6:30 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $23
  • National Express
    6h 50m
    0
    2:55 PM
    Portsmouth
    The Hard Interchange
    9:45 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $26
  • National Express
    5h 45m
    0
    12:55 PM
    Portsmouth
    The Hard Interchange
    6:40 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $44
  • National Express
    5h 30m
    0
    8:10 PM
    Portsmouth
    The Hard Interchange
    1:40 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $44

Cheapest bus trips tomorrow

Prices are for one way and one person
  • National Express
    6h 10m
    0
    6:45 PM
    Portsmouth
    The Hard Interchange
    12:55 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $14
  • National Express
    6h 50m
    0
    2:55 PM
    Portsmouth
    The Hard Interchange
    9:45 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $23
  • National Express
    7h 25m
    0
    11:05 AM
    Portsmouth
    The Hard Interchange
    6:30 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $28
  • National Express
    5h 45m
    0
    12:55 PM
    Portsmouth
    The Hard Interchange
    6:40 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $55
  • National Express
    7h 40m
    0
    3:20 AM
    Portsmouth
    The Hard Interchange
    11:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $57

Cheapest bus trips Thursday

Prices are for one way and one person
  • National Express
    6h 10m
    0
    6:45 PM
    Portsmouth
    The Hard Interchange
    12:55 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $14
  • National Express
    6h 50m
    0
    2:55 PM
    Portsmouth
    The Hard Interchange
    9:45 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $17
  • National Express
    7h 25m
    0
    11:05 AM
    Portsmouth
    The Hard Interchange
    6:30 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $23
  • National Express
    7h 40m
    0
    3:20 AM
    Portsmouth
    The Hard Interchange
    11:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $43
  • National Express
    5h 45m
    0
    12:55 PM
    Portsmouth
    The Hard Interchange
    6:40 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $44

Cheapest bus trips Friday

Prices are for one way and one person
  • National Express
    6h 15m
    0
    6:45 PM
    Portsmouth
    The Hard Interchange
    1:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $27
  • National Express
    7h 20m
    0
    12:35 PM
    Portsmouth
    The Hard Interchange
    7:55 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $30
  • National Express
    6h 50m
    0
    7:20 AM
    Portsmouth
    The Hard Interchange
    2:10 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $38
  • National Express
    7h 40m
    0
    3:20 AM
    Portsmouth
    The Hard Interchange
    11:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $54
  • National Express
    5h 30m
    0
    8:10 PM
    Portsmouth
    The Hard Interchange
    1:40 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $55
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than $11? You can find the corresponding connections below.
    • National Express
      7h 20m
      0
      6:45 PM
      Portsmouth
      The Hard Interchange
      12:08 AM
      Bristol
      Clifton Down
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 42m
    • FlixBus
      1h 15m
      0
      12:50 AM
      Bristol
      Coach Station
      2:05 AM
      Cardiff
      Lloyd George Avenue
      0
      FlixBus
      Economy
      $6
    Travel time is 1h 50m longer, but you will save $11

Cheapest bus trips Saturday

Prices are for one way and one person
  • National Express
    7h 15m
    0
    6:45 PM
    Portsmouth
    The Hard Interchange
    2:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $18
  • National Express
    6h 40m
    0
    12:35 PM
    Portsmouth
    The Hard Interchange
    7:15 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $23
  • National Express
    6h 30m
    0
    7:40 AM
    Portsmouth
    The Hard Interchange
    2:10 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $32
  • National Express
    5h 45m
    0
    4:55 PM
    Portsmouth
    The Hard Interchange
    10:40 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $57
  • National Express
    6h 0m
    0
    1:50 PM
    Portsmouth
    The Hard Interchange
    7:50 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $59
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than $2? You can find the corresponding connections below.
    • National Express
      7h 20m
      0
      6:45 PM
      Portsmouth
      The Hard Interchange
      12:08 AM
      Bristol
      Clifton Down
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 42m
    • FlixBus
      1h 15m
      0
      12:50 AM
      Bristol
      Coach Station
      2:05 AM
      Cardiff
      Lloyd George Avenue
      0
      FlixBus
      Economy
      $6
    Travel time is 1h 35m longer, but you will save $2

Cheapest bus trips Sunday

Prices are for one way and one person
  • National Express
    6h 15m
    0
    6:45 PM
    Portsmouth
    The Hard Interchange
    1:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $18
  • National Express
    6h 30m
    0
    7:40 AM
    Portsmouth
    The Hard Interchange
    2:10 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $26
  • National Express
    6h 40m
    0
    12:35 PM
    Portsmouth
    The Hard Interchange
    7:15 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $27
  • National Express
    5h 35m
    0
    10:50 AM
    Portsmouth
    The Hard Interchange
    4:25 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $53
  • National Express
    7h 40m
    0
    3:20 AM
    Portsmouth
    The Hard Interchange
    11:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $56
  • Did you know that if you travel from Portsmouth to Cardiff via Bristol, you can save more than $2? You can find the corresponding connections below.
    • National Express
      7h 20m
      0
      6:45 PM
      Portsmouth
      The Hard Interchange
      12:08 AM
      Bristol
      Clifton Down
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 42m
    • FlixBus
      1h 15m
      0
      12:50 AM
      Bristol
      Coach Station
      2:05 AM
      Cardiff
      Lloyd George Avenue
      0
      FlixBus
      Economy
      $6
    Travel time is 1h 45m longer, but you will save $2

Cheapest bus trips Monday

Prices are for one way and one person
  • National Express
    6h 50m
    0
    7:20 AM
    Portsmouth
    The Hard Interchange
    2:10 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $15
  • National Express
    6h 15m
    0
    6:45 PM
    Portsmouth
    The Hard Interchange
    1:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $15
  • National Express
    7h 0m
    0
    12:35 PM
    Portsmouth
    The Hard Interchange
    7:35 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $23
  • National Express
    7h 40m
    0
    3:20 AM
    Portsmouth
    The Hard Interchange
    11:00 AM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $36
  • National Express
    6h 5m
    0
    8:20 AM
    Portsmouth
    The Hard Interchange
    2:25 PM
    Cardiff
    Coach Station
    0
    National Express
    Economy
    $36

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.
Sunday is the busiest day, with more than 10 daily buses from Portsmouth to Cardiff. Tuesday has instead the fewest connections, with only 9 daily coaches between Portsmouth and Cardiff.
The busiest time of the day is the Afternoon, with 21 buses from Portsmouth to Cardiff, while Night sees the fewest connections between Portsmouth and Cardiff, with 12 offers.

Facts about the bus 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 $14!

Cheapest Bus $14
Fastest Bus 5h 30m
Earliest Bus 3:20 AM
Latest Bus 8:10 PM
Daily Bus Routes 9 Ø
Distance 101.8 miles
Bus Companies National Express

Cheapest bus connections from Portsmouth to Cardiff

Every day, 9 buses from 1 bus companies leave Portsmouth for Cardiff: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 03/25/2025 and for the following days.

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday 03/23
Monday 03/24
Tuesday 03/25
$14
Wednesday 03/26
$14
Thursday 03/27
$14
Friday 03/28
$27
Saturday 03/29
$18
Sunday 03/30
$18
Monday 03/31
$15
Tuesday 04/01
$15
Wednesday 04/02
$14
Thursday 04/03
Friday 04/04
$26
Saturday 04/05
$26
Sunday 04/06
$26
Monday 04/07
$26
Tuesday 04/08
Wednesday 04/09
$26
Thursday 04/10
$26
Friday 04/11
$26
Saturday 04/12
$26
Sunday 04/13
Monday 04/14
Tuesday 04/15
Wednesday 04/16
Thursday 04/17
$41
Friday 04/18
Saturday 04/19

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 $14, Tuesday is the cheapest day for a bus from Portsmouth to Cardiff. Friday instead is the most expensive day with prices starting from $27.
Evening is the cheapest day time for bus tickets from Portsmouth to Cardiff, with $14. Night is the most expensive time of the day with prices starting from $36.

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 buses 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 $14
Fastest Bus 5h 30m
Earliest Bus 3:20 AM
Last Bus 8:10 PM
Daily Connections 9 Ø
Found on 3/24/2025

All bus stations and stops in Portsmouth and Cardiff

In the map below, you can see where to find all 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 buses 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 bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $14 and takes 6h 10m to reach Cardiff. Compare offers to save money!

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

This route is offered by 1 companies with a range of ticket prices between $14 and $77. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to Cardiff.

On average, how many connections are available from Portsmouth to Cardiff each day?

Every day, the Portsmouth to Cardiff bus route is served by approximately 9 connections. With our search, you can compare bus times to find the perfect trip.

How long does a bus journey from Portsmouth to Cardiff take?

The fastest bus from Portsmouth to Cardiff is offered by National Express and takes 5h 30m. Bus tickets for this connection cost $44. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from Portsmouth to Cardiff?

The earliest bus arriving in Cardiff from Portsmouth starts at 3:20 AM. However, information regarding departure times may differ on weekends and holidays. Simply use our search to find exact times for your planned travel date.

What time is the last bus from Portsmouth to Cardiff?

The latest bus trip departing from Portsmouth for Cardiff starts at 8:10 PM. Please note that departure times may differ on weekends and holidays. So just use our search to find the exact times for your planned travel date.

Which bus companies operate the Portsmouth Cardiff route?

When traveling by bus from Portsmouth to Cardiff, passengers can travel with National Express. With our search, you can compare all available bus tickets to book the one that works 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 Portsmouth to Cardiff bus route?

Depending on which provider you travel with, what you're allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the Portsmouth Cardiff bus route free of charge. Simply use our search to find a bus 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 traveling 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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Buses to Cardiff from Aberdeen Buses to Cardiff from Aberdeen
Port Talbot to Cardiff bus Port Talbot to Cardiff bus
Bus from London to Cardiff Bus from London to Cardiff
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Popular Airport Shuttles to Portsmouth and to Cardiff
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