The average bus between Cardiff Bay and London takes 5h 41m and the fastest bus takes 4h 16m. The bus service runs several times per day from Cardiff Bay to London. 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 3 hours between Cardiff Bay and London. The earliest departure is at 12:32 AM at night, and the last departure from Cardiff Bay is at 9:51 PM which arrives into London at 6:50 AM. All services require a transfer at Cardiff Bus Interchange Bay 2 and take an average of 5h 41m. The schedules shown below are for the next available departures.


4h 41m • 2 changes

4h 31m • 2 changes

4h 46m • 2 changes

5h 11m • 2 changes

10h 48m • 2 changes

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4h 41m • 2 changes

4h 31m • 2 changes

10h 48m • 2 changes

4h 47m • 2 changes

4h 41m • 2 changes

4h 16m • 2 changes

10h 48m • 2 changes

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4h 41m • 2 changes

4h 16m • 2 changes

5h 44m • 2 changes

5h 1m • 2 changes

5h 29m • 2 changes

5h 14m • 2 changesWant to know about travelling from Cardiff Bay to London? 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 Cardiff Bay to London. However, there are services departing from Cardiff Bay station and arriving at London station via London Victoria Coach Station Arrivals station. The journey, including transfers, takes approximately 5h 41m.
Cardiff Bay to London bus services, operated by First South & West Wales, depart from Sophia Gardens station.
Cardiff Bay to London bus services, operated by First South & West Wales, arrive at London Victoria Coach Station Arrivals.
The distance between Cardiff Bay and London is 210.3 km. The road distance is 246 km.
National Express operates a bus from Sophia Gardens to London Victoria Coach Station Arrivals hourly. Tickets cost £28–70 and the journey takes 3h 50m.