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Cardiff Bay to Cardiff Castle buses

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Trip Overview

The average bus between Cardiff Bay and Cardiff Castle takes 30 min and the fastest bus takes 12 min. There is a bus service every few hours from Cardiff Bay to Cardiff Castle. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

30 min
Duration
2 mi
Distance
£6
Average price
Hourly
Frequency

Bus via Cardiff Bridge KQ

best
  1. Take the bus from The Flourish to Cardiff Bus Interchange Bay 1bus bus 304
  2. Take the bus from Cardiff Bus Interchange Bay 10 to Cardiff Bridge KQbus bus 61 / ...
16 min
£3–11

Cardiff Bay to Cardiff Castle bus times

Buses run hourly between Cardiff Bay and Cardiff Castle. The earliest departure is at 12:33 AM at night, and the last departure from Cardiff Bay is at 10:54 PM which arrives into Cardiff Castle at 11:07 PM. All services require a transfer at Cardiff Bus Interchange Bay 1 and take an average of 30 min. The schedules shown below are for the next available departures.

Departing Monday, October 12, 2026

  •  → 

    First South & West WalesCardiff Bus19 min • 1 change

  •  → 

    First South & West WalesCardiff Bus12 min • 1 change

  •  → 

    Cardiff BusCardiff Bus21 min • 1 change

  •  → 

    First South & West WalesCardiff Bus14 min • 1 change
  • Show more

Departing Tuesday, October 13, 2026

  •  → 

    First South & West WalesCardiff Bus5h 11m • 1 change

  •  → 

    First South & West WalesCardiff Bus14 min • 1 change

  •  → 

    Cardiff BusCardiff Bus16 min • 1 change

  •  → 

    First South & West WalesCardiff Bus12 min • 1 change
  • Show more

Departing Wednesday, October 14, 2026

  •  → 

    First South & West WalesCardiff Bus5h 11m • 1 change

  •  → 

    First South & West WalesCardiff Bus14 min • 1 change

  •  → 

    Cardiff BusCardiff Bus16 min • 1 change

  •  → 

    First South & West WalesCardiff Bus12 min • 1 change
  • Show more

Frequently asked questions

Want to know about travelling from Cardiff Bay to Cardiff Castle? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.

Map of how to get from Cardiff Bay to Cardiff Castle.ExpandLaunch map view
  • Distance: 1.8 mi
  • Duration: 30 min

What companies run services between Cardiff Bay, Wales and Cardiff Castle, Wales?

You can take a bus from The Flourish to Cardiff Castle via Cardiff Bus Interchange Bay 1, Cardiff Bus Interchange Bay 10, and Cardiff Bridge KQ in around 16 min.

Operators