The average bus between Big Ben and Cardiff takes 3h 53m and the fastest bus takes 3h 17m. There is a bus service every few hours from Big Ben 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 hourly between Big Ben and Cardiff. The earliest departure is at 12:12 AM at night, and the last departure from Big Ben is at 11:12 PM which arrives into Cardiff at 2:45 AM. All services require a transfer at Parliament Square / Westminster Abbey and take an average of 3h 53m. The schedules shown below are for the next available departures.

3h 23m • 1 change

3h 31m • 1 change

3h 50m • 1 change

3h 50m • 1 change

3h 23m • 1 change

3h 31m • 1 change

3h 50m • 1 change

3h 50m • 1 change

3h 23m • 1 change

3h 51m • 1 change

3h 42m • 1 change

4h 2m • 1 change
Want to know about travelling from Big Ben 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 Big Ben to Cardiff. However, there are services departing from Big Ben station and arriving at Cardiff station via University RE. The journey, including transfers, takes approximately 3h 53m.
Big Ben to Cardiff bus services, operated by Go Ahead London, depart from London Victoria station.
Big Ben to Cardiff bus services, operated by Go Ahead London, arrive at University RE station.
The distance between Big Ben and Cardiff is 211.5 km. The road distance is 244 km.
National Express operates a bus from London Victoria to University RE hourly. Tickets cost £28–70 and the journey takes 3h 30m.