The average train between Hertford and Swansea takes 4h 26m and the fastest train takes 3h 52m. There is a train service every few hours from Hertford to Swansea. 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 Hertford and Swansea. The earliest departure is at 5:16 AM in the morning, and the last departure from Hertford is at 11:16 PM which arrives into Swansea at 9:02 AM. All services require a transfer at Moorgate and take an average of 4h 26m. The schedules shown below are for the next available departures.


3h 52m • 2 changes


4h 2m • 2 changes


4h 14m • 2 changes


4h 13m • 2 changes


4h 2m • 2 changes


3h 58m • 2 changes


3h 52m • 2 changes


4h 2m • 2 changes


4h 14m • 2 changes


4h 14m • 2 changes


4h 17m • 2 changes


4h 18m • 2 changes
Want to know about travelling from Hertford to Swansea? 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 Hertford to Swansea. However, there are services departing from Hertford station and arriving at Swansea station via Moorgate. The journey, including transfers, takes approximately 4h 26m.
Hertford to Swansea train services, operated by Great Northern, depart from Hertford North station.
Hertford to Swansea train services, operated by Great Northern, arrive at Swansea station.
Book your Hertford to Swansea train tickets online with Great Northern, Elizabeth Line (TfL) and Great Western Railway (GWR).
The distance between Hertford and Swansea is 267 km. The road distance is 345 km.
You can take a train from Hertford North to Swansea via Moorgate, Liverpool Street Station, and London Paddington in around 4h 33m.