The average train between Hertfordshire and Swansea takes 3h 55m and the fastest train takes 3h 35m. There is a train service every few hours from Hertfordshire 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 Hertfordshire and Swansea. The earliest departure is at 5:53 AM in the morning, and the last departure from Hertfordshire is at 11:52 PM which arrives into Swansea at 9:02 AM. All services require a transfer at London Kings Cross and take an average of 3h 55m. The schedules shown below are for the next available departures.


3h 52m • 2 changes


3h 55m • 2 changes


3h 38m • 2 changes


3h 37m • 2 changes


3h 40m • 2 changes


3h 51m • 2 changes


3h 52m • 2 changes


3h 55m • 2 changes


3h 40m • 2 changes


3h 51m • 2 changes


3h 52m • 2 changes


3h 55m • 2 changes
Want to know about travelling from Hertfordshire 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 Hertfordshire to Swansea. However, there are services departing from Hertfordshire station and arriving at Swansea station via Swansea. The journey, including transfers, takes approximately 3h 55m.
Hertfordshire to Swansea train services, operated by Great Northern, depart from London Paddington station.
Hertfordshire to Swansea train services, operated by Great Northern, arrive at Swansea station.
Book your Hertfordshire to Swansea train tickets online with Great Northern, London Underground (Tube) and Great Western Railway (GWR).
The distance between Hertfordshire and Swansea is 255.4 km. The road distance is 342 km.
Great Western Railway (GWR) operates a train from London Paddington to Swansea hourly. Tickets cost £85–160 and the journey takes 2h 51m.