The average train between Boston and Cardiff takes 6h 11m and the fastest train takes 5h 12m. The train service runs several times per day from Boston 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.
Trains run every 3 hours between Boston and Cardiff. The earliest departure is at 6:13 AM in the morning, and the last departure from Boston is at 9:52 PM which arrives into Cardiff at 9:26 AM. All services require a transfer, and take on average 6h 11m. The schedules shown below are for the next available departures.

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5h 31m • 1 change
Want to know about travelling from Boston 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 train from Boston to Cardiff. However, there are services departing from Boston station and arriving at Cardiff station via Nottingham. The journey, including transfers, takes approximately 6h 11m.
Boston to Cardiff train services, operated by East Midlands Railways, depart from Boston station.
Boston to Cardiff train services, operated by East Midlands Railways, arrive at Cardiff Central station.
Book your Boston to Cardiff train tickets online with East Midlands Railways and Cross Country.
The distance between Boston and Cardiff is 271.6 km. The road distance is 356 km.
You can take a train from Boston to Cardiff Central via Nottingham in around 5h 51m.