The average train between Cardiff and Bletchley takes 4h 21m and the fastest train takes 3h 44m. There is a train service every few hours from Cardiff to Bletchley. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run hourly between Cardiff and Bletchley. The earliest departure is at 6:40 AM in the morning, and the last departure from Cardiff is at 9:45 PM which arrives into Bletchley at 7:02 AM. All services require a transfer, and take on average 4h 21m. The schedules shown below are for the next available departures.

3h 58m • 1 change

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3h 54m • 1 change

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3h 54m • 1 change

3h 59m • 1 change

3h 54m • 1 change

3h 54m • 1 change

3h 54m • 1 change
Want to know about travelling from Cardiff to Bletchley? 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 train from Cardiff to Bletchley. However, there are services departing from Cardiff station and arriving at Bletchley station via Birmingham New Street. The journey, including transfers, takes approximately 4h 21m.
Cardiff to Bletchley train services, operated by Cross Country, depart from Cardiff Central station.
Cardiff to Bletchley train services, operated by Cross Country, arrive at Bletchley station.
Book your Cardiff to Bletchley train tickets online with Cross Country and West Midlands Trains.
The distance between Cardiff and Bletchley is 177.8 km. The road distance is 283 km.
You can take a train from Cardiff Central to Bletchley via Birmingham New Street in around 3h 56m.