The average train between Hertfordshire and Cardiff takes 2h 58m and the fastest train takes 2h 40m. There is an hourly train service from Hertfordshire 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 hourly between Hertfordshire and Cardiff. The earliest departure is at 5:52 AM in the morning, and the last departure from Hertfordshire is at 11:52 PM which arrives into Cardiff at 8:06 AM. All services require a transfer at London Kings Cross and take an average of 2h 58m. The schedules shown below are for the next available departures.


2h 46m • 2 changes


2h 40m • 2 changes


2h 46m • 2 changes


2h 56m • 2 changes


2h 48m • 2 changes


2h 47m • 2 changes


2h 58m • 2 changes


3h 4m • 2 changes


2h 48m • 2 changes


2h 47m • 2 changes


2h 58m • 2 changes


3h 4m • 2 changes
Want to know about travelling from Hertfordshire 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 Hertfordshire to Cardiff. However, there are services departing from Hertfordshire station and arriving at Cardiff station via Cardiff Central. The journey, including transfers, takes approximately 2h 58m.
Hertfordshire to Cardiff train services, operated by Great Northern, depart from London Paddington station.
Hertfordshire to Cardiff train services, operated by Great Northern, arrive at Cardiff Central station.
Book your Hertfordshire to Cardiff train tickets online with Great Northern, London Underground (Tube) and Great Western Railway (GWR).
The distance between Hertfordshire and Cardiff is 205.9 km. The road distance is 269 km.
Great Western Railway (GWR) operates a train from London Paddington to Cardiff Central hourly. Tickets cost £65–130 and the journey takes 2h.