The average train between London and Caldicot takes 2h 34m and the fastest train takes 1h 48m. There is a train service every few hours from London to Caldicot. 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 London and Caldicot. The earliest departure is at 5:23 AM in the morning, and the last departure from London is at 10:49 PM which arrives into Caldicot at 6:36 AM. All services require a transfer, and take on average 2h 34m. The schedules shown below are for the next available departures.

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2h 18m • 1 change

2h 18m • 1 change

3h 14m • 1 change

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Want to know about travelling from London to Caldicot? 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 London to Caldicot. However, there are services departing from London station and arriving at Caldicot station via Newport (S Wales). The journey, including transfers, takes approximately 2h 34m.
London to Caldicot train services, operated by Great Western Railway (GWR), depart from London Paddington station.
London to Caldicot train services, operated by Great Western Railway (GWR), arrive at Newport (S Wales) station.
Book your London to Caldicot train tickets online with Great Western Railway (GWR), Transport for Wales and Cross Country.
The distance between London and Caldicot is 181.7 km. The road distance is 230 km.
Great Western Railway (GWR) operates a train from London Paddington to Newport (S Wales) hourly. Tickets cost £60–120 and the journey takes 1h 41m.