The average bus between St Paul's Cathedral and Cardiff takes 4h 11m and the fastest bus takes 3h 35m. There is a bus service every few hours from St Paul's Cathedral to Cardiff. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 2 hours between St Paul's Cathedral and Cardiff. The earliest departure is at 12:00 AM at night, and the last departure from St Paul's Cathedral is at 11:00 PM which arrives into Cardiff at 2:45 AM. All services require a transfer at Southwark St /Blackfriars Road and take an average of 4h 11m. The schedules shown below are for the next available departures.

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4h 5m • 1 changeWant to know about travelling from St Paul's Cathedral to Cardiff? 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.
No, there is no direct bus from St Paul's Cathedral to Cardiff. However, there are services departing from St Paul's Cathedral station and arriving at Cardiff station via University RE. The journey, including transfers, takes approximately 4h 11m.
St Paul's Cathedral to Cardiff bus services, operated by National Express, depart from London Victoria station.
St Paul's Cathedral to Cardiff bus services, operated by National Express, arrive at University RE station.
Book your St Paul's Cathedral to Cardiff bus tickets online with National Express.
The distance between St Paul's Cathedral and Cardiff is 213.3 km. The road distance is 247 km.
National Express operates a bus from London Victoria to University RE every 30 minutes. Tickets cost £25–40 and the journey takes 3h 30m.