Which bus from Cardiff to Portsmouth is the cheapest?

Compare all coach companies and find the best price: Bus tickets from £12
Compare & Save Millions of buses in one click. Save up to 70%!
The Best Deals Save up to 70%
The Most Choices Millions of routes worldwide
Easy and Transparent Compare offers with 1 click

Which bus from Cardiff to Portsmouth is the best?

Check the bus schedule for Cardiff to Portsmouth. Here is a selection of the cheapest coach trips for the next days from bus operators like National Express. To see the full timetable for all coaches just use or search and compare.

today
£15
tomorrow
£14
Sunday
Monday
£15
Tuesday
£12
Wednesday
£15
Thursday
£18

Cheapest bus trips today

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 7h 0m 17:30 Cardiff Coach Station 00:30 Portsmouth The Hard Interchange  Economy £15
National Express 7h 15m 15:45 Cardiff Coach Station 23:00 Portsmouth The Hard Interchange  Economy £16
National Express 6h 30m 19:45 Cardiff Coach Station 02:15 Portsmouth The Hard Interchange  Economy £17
National Express 7h 25m 07:30 Cardiff Coach Station 14:55 Portsmouth The Hard Interchange  Economy £25
National Express 5h 25m 05:25 Cardiff Coach Station 10:50 Portsmouth The Hard Interchange  Economy £38

Cheapest bus trips tomorrow

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 7h 0m 17:30 Cardiff Coach Station 00:30 Portsmouth The Hard Interchange  Economy £14
National Express 6h 30m 19:45 Cardiff Coach Station 02:15 Portsmouth The Hard Interchange  Economy £14
National Express 7h 0m 16:00 Cardiff Coach Station 23:00 Portsmouth The Hard Interchange  Economy £16
National Express 7h 10m 07:45 Cardiff Coach Station 14:55 Portsmouth The Hard Interchange  Economy £33
National Express 6h 20m 05:55 Cardiff Coach Station 12:15 Portsmouth The Hard Interchange  Economy £36
  • Did you know that if you travel from Cardiff to Portsmouth via Bristol, you can save more than £1? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      18:15
      Cardiff
      University
      19:20
      Bristol
      Coach Station
      0
      National Express
      Economy
      £5
      • Waiting Time 1h 10m
    • National Express
      5h 45m
      0
      20:30
      Bristol
      Coach Station
      02:15
      Portsmouth
      The Hard Interchange
      0
      National Express
      Economy
      £8
    Travel time is 1h 40m longer, but you will save £1

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 17:30 Cardiff Coach Station 00:30 Portsmouth The Hard Interchange  Economy £15
National Express 6h 30m 19:45 Cardiff Coach Station 02:15 Portsmouth The Hard Interchange  Economy £15
National Express 7h 15m 15:45 Cardiff Coach Station 23:00 Portsmouth The Hard Interchange  Economy £20
National Express 7h 25m 07:30 Cardiff Coach Station 14:55 Portsmouth The Hard Interchange  Economy £25
National Express 5h 25m 05:25 Cardiff Coach Station 10:50 Portsmouth The Hard Interchange  Economy £41
  • Did you know that if you travel from Cardiff to Portsmouth via Bristol, you can save more than £5? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      18:15
      Cardiff
      University
      19:20
      Bristol
      Coach Station
      0
      National Express
      Economy
      £3
      • Waiting Time 0h 40m
    • National Express
      6h 15m
      0
      20:00
      Bristol
      Coach Station
      02:15
      Portsmouth
      The Hard Interchange
      0
      National Express
      Economy
      £7
    Travel time is 2h 35m longer, but you will save £5

Cheapest bus trips Tuesday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 7h 0m 19:15 Cardiff Coach Station 02:15 Portsmouth The Hard Interchange  Economy £12
National Express 7h 0m 09:00 Cardiff Coach Station 16:00 Portsmouth The Hard Interchange  Economy £14
National Express 7h 10m 12:30 Cardiff Coach Station 19:40 Portsmouth The Hard Interchange  Economy £14
National Express 8h 0m 16:30 Cardiff Coach Station 00:30 Portsmouth The Hard Interchange  Economy £26
National Express 7h 0m 07:20 Cardiff Coach Station 14:20 Portsmouth The Hard Interchange  Economy £28
  • Did you know that if you travel from Cardiff to Portsmouth via Bristol, you can save more than £2? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      18:15
      Cardiff
      University
      19:20
      Bristol
      Coach Station
      0
      National Express
      Economy
      £3
      • Waiting Time 0h 40m
    • National Express
      6h 15m
      0
      20:00
      Bristol
      Coach Station
      02:15
      Portsmouth
      The Hard Interchange
      0
      National Express
      Economy
      £7
    Travel time is 1h 0m longer, but you will save £2

Cheapest bus trips Wednesday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 7h 0m 19:15 Cardiff Coach Station 02:15 Portsmouth The Hard Interchange  Economy £15
National Express 7h 0m 09:00 Cardiff Coach Station 16:00 Portsmouth The Hard Interchange  Economy £21
National Express 7h 10m 12:30 Cardiff Coach Station 19:40 Portsmouth The Hard Interchange  Economy £22
National Express 6h 30m 14:55 Cardiff Coach Station 21:25 Portsmouth The Hard Interchange  Economy £35
National Express 5h 25m 05:25 Cardiff Coach Station 10:50 Portsmouth The Hard Interchange  Economy £38
  • Did you know that if you travel from Cardiff to Portsmouth via Bristol, you can save more than £5? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      18:15
      Cardiff
      University
      19:20
      Bristol
      Coach Station
      0
      National Express
      Economy
      £3
      • Waiting Time 0h 40m
    • National Express
      6h 15m
      0
      20:00
      Bristol
      Coach Station
      02:15
      Portsmouth
      The Hard Interchange
      0
      National Express
      Economy
      £7
    Travel time is 2h 35m longer, but you will save £5

Cheapest bus trips Thursday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 7h 0m 19:15 Cardiff Coach Station 02:15 Portsmouth The Hard Interchange  Economy £18
National Express 7h 10m 12:30 Cardiff Coach Station 19:40 Portsmouth The Hard Interchange  Economy £22
National Express 7h 0m 09:00 Cardiff Coach Station 16:00 Portsmouth The Hard Interchange  Economy £23
National Express 8h 0m 16:30 Cardiff Coach Station 00:30 Portsmouth The Hard Interchange  Economy £36
National Express 5h 25m 05:25 Cardiff Coach Station 10:50 Portsmouth The Hard Interchange  Economy £37
  • Did you know that if you travel from Cardiff to Portsmouth via Bristol, you can save more than £8? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      18:15
      Cardiff
      University
      19:20
      Bristol
      Coach Station
      0
      National Express
      Economy
      £3
      • Waiting Time 0h 40m
    • National Express
      6h 15m
      0
      20:00
      Bristol
      Coach Station
      02:15
      Portsmouth
      The Hard Interchange
      0
      National Express
      Economy
      £7
    Travel time is 2h 35m longer, but you will save £8

Best Price Offer: The price for the cheapest coach from Cardiff to Portsmouth is £12 on 09/12/2025. Flexible travellers save on ticket prices.


What is the best day and time to travel by bus between Cardiff and Portsmouth?

Here is the frequency of all coach connections from Cardiff to Portsmouth. See on which day of the week you have more travel options and what time you have more bus trips to choose from.
Saturday is the busiest day, with more than 10 daily coaches from Cardiff to Portsmouth. Tuesday has instead the fewest connections, with only 8 daily coaches between Cardiff and Portsmouth.
The busiest time of the day is the Afternoon, with 21 coaches from Cardiff to Portsmouth, while Evening sees the fewest connections between Cardiff and Portsmouth, with 6 offers.

All facts for Cardiff to Portsmouth bus at a glance

Compare all coach operators like National Express that travel daily 8 times by bus from Cardiff to Portsmouth in one click. Book your Cardiff to Portsmouth bus ticket starting from £12!

Cheapest Bus £12
Fastest Bus 5h 25m
Earliest Coach 05:25
Latest Coach 19:15
Daily Bus Connections 8 Ø
Distance 163.8 km
Coach Companies National Express

What are the cheapest coach tickets from Cardiff to Portsmouth?

Every day, 8 buses from 1 coach companies leave Cardiff for Portsmouth. Check the table below to find the cheapest prices for coach tickets for this route, starting from 05/12/2025 and for the following days. Make sure get the cheapest bus ticket!

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday 01/12
Tuesday 02/12
Wednesday 03/12
Thursday 04/12
Friday 05/12
£15
Saturday 06/12
£14
Sunday 07/12
Monday 08/12
£15
Tuesday 09/12
£12
Wednesday 10/12
£15
Thursday 11/12
£18
Friday 12/12
£25
Saturday 13/12
£25
Sunday 14/12
£25
Monday 15/12
Tuesday 16/12
£25
Wednesday 17/12
£25
Thursday 18/12
Friday 19/12
£38
Saturday 20/12
£38
Sunday 21/12
Monday 22/12
£43
Tuesday 23/12
Wednesday 24/12
£43
Thursday 25/12
£92
Friday 26/12
Saturday 27/12
£43
Sunday 28/12

The cheapest time to travel from Cardiff to Portsmouth

See here on which day and which time of the day you can find the cheapest bus ticket from Cardiff to Portsmouth, for the next 30 days.
With a price starting from £12, Tuesday is the cheapest day for a coach from Cardiff to Portsmouth. Thursday instead is the most expensive day with prices starting from £18.
Evening is the cheapest day time for bus tickets from Cardiff to Portsmouth, with £12. Morning is the most expensive time of the day with prices starting from £14.

How to save money travelling from Cardiff to Portsmouth

Travel can be expensive, but it doesn't need to be! Do you want to avoid paying higher prices for your trip? Plan your bus trips smartly. Here are a few hacks to save money on your coach journey.

Book the ticket from Cardiff to Portsmouth in advance! The earlier you book, the cheaper usually the price is. Also, you will be sure to have a place on the coach from Cardiff to Portsmouth, 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 Cardiff to Portsmouth are also emptier.

Check for bus deals and promotions for all bus companies in this route. On CheckMyBus we show special offers directly in the coach trip on our search. Sign-up and check or deals sections and get notifications on our latest travel hacks.

What are the most popular bus companies from Cardiff to Portsmouth?

These are the most booked bus companies by our users on the Cardiff to Portsmouth timetable.

National Express from Cardiff to Portsmouth

National Express

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

Cheapest Price £12
Fastest Coach 5h 25m
Earliest Coach 05:25
Last Coach 19:15
Daily Connections 8 Ø
Found on 03/12/2025
In total 1 operators offer buses for this route. Find all bus timetables for them. Each coach company has a dedicated cancellation policy and possibilities for transport luggage on the bus. Check also special conditions to travel with kids or coach cards with rebates.

All bus stations and stops in Cardiff and Portsmouth

Here is a map with all coach stations in Cardiff and Portsmouth. Compare which stop is closest to your destination to save time to find the fastest buses and connections.

All you need to know when you travel by bus from Cardiff to Portsmouth

Check all information on comfort and services on the coaches from Cardiff to Portsmouth. Which seat classes are available or what are the amenities of operators on your coach trip? Below you´ll find answers to your questions.

FAQs for Cardiff to Portsmouth bus

How much does a Cardiff Portsmouth coach trip cost?

This depends on, among other things, the day and travel time. The cheapest ticket for the Cardiff Portsmouth bus trip is available from £12 and takes 7h 0m. Compare offers and save money!

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

This connection is offered by 1 companies with ticket prices ranging from £12 to £62. Therefore, we suggest booking your ticket as soon as possible to ensure you’ll get the cheapest bus trip to Portsmouth.

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

Each day, the bus route from Cardiff to Portsmouth is offered by roughly 8 busses. By using our search, you can compare bus schedules and find your ideal trip.

How long does a bus to Portsmouth from Cardiff take?

The quickest coach from Cardiff to Portsmouth is provided by National Express and takes 5h 25m. 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 Cardiff to Portsmouth?

The earliest bus to Portsmouth departs from Cardiff at 05:25. 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 Cardiff to Portsmouth?

The latest bus to Portsmouth departs from Cardiff at 19:15. 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 Cardiff Portsmouth route?

Passengers looking to travel from Cardiff to Portsmouth 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 Cardiff and Portsmouth?

You can check all the direct connections between Cardiff and Portsmouth 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 Portsmouth from Cardiff?

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 bus for the Cardiff Portsmouth 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 Cardiff Portsmouth 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 Cardiff to Portsmouth on your planned travel date.

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

Economy
Economy

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

More bus routes to Cardiff and to Portsmouth

Here’s an overview of the most popular bus routes to Cardiff and to Portsmouth. Simply click on the connection of your choice, and you’ll find all the details about your bus route!
Buses Bristol to Cardiff Buses Bristol to Cardiff
Swansea to Cardiff coach Swansea to Cardiff coach
Bus from Bridgend to Cardiff Bus from Bridgend to Cardiff
Coach Newport (Wales) to Cardiff Coach Newport (Wales) to Cardiff
Coaches Plymouth to Portsmouth Coaches Plymouth to Portsmouth
Coaches Leeds to Portsmouth Coaches Leeds to Portsmouth
Coaches Guildford to Portsmouth Coaches Guildford to Portsmouth
Coach Poole to Portsmouth Coach Poole to Portsmouth
Popular Airport Transfers to Cardiff and to Portsmouth
CheckMyBus › Coaches in United Kingdom › Coach to Cardiff › Coach to Portsmouth

The CheckMyBus App

Free Download

App Store
CheckMyBus App
Close
GPDR CheckMyBus shield

We value your privacy!

To

show

you

the

best

bus

deals,

we

and

our

partners

use

technical,

analytical,

and

marketing

cookies

for

ads

personalisation.

We

remember

your

anonymized

details

to

provide

a

personalized

experience.