The average train between Chelmsford and Swansea takes 4h 5m and the fastest train takes 3h 42m. There is a train service every few hours from Chelmsford 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 Chelmsford and Swansea. The earliest departure is at 5:41 AM in the morning, and the last departure from Chelmsford is at 11:23 PM which arrives into Swansea at 9:02 AM. All services require a transfer at Stratford and take an average of 4h 5m. The schedules shown below are for the next available departures.


3h 53m • 2 changes


3h 49m • 2 changes


3h 52m • 2 changes


3h 53m • 2 changes


3h 52m • 2 changes


3h 49m • 2 changes


3h 46m • 2 changes


3h 49m • 2 changes


3h 52m • 2 changes


3h 49m • 2 changes


3h 46m • 2 changes


3h 49m • 2 changes
Want to know about travelling from Chelmsford 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 Chelmsford to Swansea. However, there are services departing from Chelmsford station and arriving at Swansea station via Stratford (London). The journey, including transfers, takes approximately 4h 5m.
Chelmsford to Swansea train services, operated by Greater Anglia, depart from Chelmsford station.
Chelmsford to Swansea train services, operated by Greater Anglia, arrive at Swansea station.
Book your Chelmsford to Swansea train tickets online with Greater Anglia, Elizabeth Line (TfL) and Great Western Railway (GWR).
The distance between Chelmsford and Swansea is 304.5 km. The road distance is 360 km.
You can take a train from Chelmsford to Swansea via Stratford and London Paddington in around 4h 20m.