The average train between Swansea and Hertfordshire takes 3h 52m and the fastest train takes 3h 37m. There is a train service every few hours from Swansea to Hertfordshire. 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 Swansea and Hertfordshire. The earliest departure is at 3:56 AM at night, and the last departure from Swansea is at 8:23 PM which arrives into Hertfordshire at 12:36 AM. All services require a transfer at London Paddington and take an average of 3h 52m. The schedules shown below are for the next available departures.


3h 44m • 2 changes


4h 4m • 2 changes


4h 4m • 2 changes


3h 48m • 2 changes


3h 37m • 2 changes


4h 9m • 2 changes


3h 42m • 2 changes


3h 42m • 2 changes


3h 37m • 2 changes


4h 9m • 2 changes


3h 42m • 2 changes


3h 42m • 2 changes
Want to know about travelling from Swansea to Hertfordshire? 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 Swansea to Hertfordshire. However, there are services departing from Swansea station and arriving at Hertfordshire station via London Paddington. The journey, including transfers, takes approximately 3h 52m.
Swansea to Hertfordshire train services, operated by Great Western Railway (GWR), depart from Swansea station.
Swansea to Hertfordshire train services, operated by Great Western Railway (GWR), arrive at London Paddington station.
Book your Swansea to Hertfordshire train tickets online with Great Western Railway (GWR), London Underground (Tube) and Great Northern.
The distance between Swansea and Hertfordshire is 255.4 km. The road distance is 342 km.
Great Western Railway (GWR) operates a train from Swansea to London Paddington hourly. Tickets cost £85–170 and the journey takes 2h 52m.