The average train between Cardiff and Hertford takes 3h 18m and the fastest train takes 3h. There is an hourly train service from Cardiff to Hertford. 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 Hertford. The earliest departure is at 5:07 AM in the morning, and the last departure from Cardiff is at 9:20 PM which arrives into Hertford at 6:24 AM. All services require a transfer at London Paddington and take an average of 3h 18m. The schedules shown below are for the next available departures.


3h 33m • 2 changes

3h • 2 changes

3h 16m • 2 changes

3h 19m • 2 changes

3h 33m • 2 changes

3h • 2 changes

3h 16m • 2 changes

3h 19m • 2 changes

3h 33m • 2 changes

3h • 2 changes

3h 16m • 2 changes

3h 19m • 2 changes

3h 33m • 2 changes

3h • 2 changes

3h 16m • 2 changes

3h 19m • 2 changes

3h 33m • 2 changes

3h • 2 changes

3h 16m • 2 changes

3h 19m • 2 changes

3h 22m • 2 changes

3h 16m • 2 changes

3h 18m • 2 changes

3h 18m • 2 changesWant to know about travelling from Cardiff to Hertford? 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 Hertford. However, there are services departing from Cardiff Central station and arriving at Hertford North station via London Paddington station. The journey, including transfers, takes approximately 3h 18m.
Cardiff to Hertford train services, operated by Great Western Railway (GWR), depart from Cardiff Central station.
Cardiff to Hertford train services, operated by Great Northern, arrive at Hertford North station.
Book your Cardiff to Hertford train tickets online with Omio.
The distance between Cardiff and Hertford is 216.9 km. The road distance is 266 km.
You can take a train from Cardiff Central to Hertford North via London Paddington, Liverpool Street Station, and Moorgate in around 3h 10m.