The average train between Boston and Cardiff takes 5h 40m and the fastest train takes 4h 37m. There is a train service every few hours 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 2 hours between Boston and Cardiff. The earliest departure is at 6:13 AM in the morning, and the last departure from Boston is at 9:54 PM which arrives into Cardiff at 1:34 PM. All services require a transfer at Grantham and take an average of 5h 40m. The schedules shown below are for the next available departures.



4h 42m • 3 changes


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5h 33m • 3 changes


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5h 27m • 3 changes


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5h 18m • 3 changes


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4h 49m • 3 changes


4h 44m • 3 changesWant 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 Grantham. The journey, including transfers, takes approximately 5h 40m.
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, Hull Trains and 3 other operators.
The distance between Boston and Cardiff is 271.6 km. The road distance is 460 km.
You can take a train from Boston to Cardiff Central via Grantham, London Kings Cross, King's Cross St. Pancras station, Paddington, and London Paddington in around 4h 38m.