The average train between Southend-on-Sea and Carmarthen takes 5h 22m and the fastest train takes 4h 50m. There is a train service every few hours from Southend-on-Sea to Carmarthen. 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 Southend-on-Sea and Carmarthen. The earliest departure is at 5:05 AM in the morning, and the last departure from Southend-on-Sea is at 9:29 PM which arrives into Carmarthen at 6:47 AM. All services require a transfer at Stratford and take an average of 5h 22m. The schedules shown below are for the next available departures.



4h 57m • 3 changes



4h 58m • 3 changes



4h 50m • 3 changes



4h 56m • 3 changes



5h 26m • 3 changes



5h 35m • 3 changes



5h 12m • 3 changes



5h 13m • 3 changes



5h 26m • 3 changes



5h 35m • 3 changes



5h 12m • 3 changes



5h 13m • 3 changes
Want to know about travelling from Southend-on-Sea to Carmarthen? 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 Southend-on-Sea to Carmarthen. However, there are services departing from Southend-on-Sea station and arriving at Carmarthen station via Stratford (London). The journey, including transfers, takes approximately 5h 22m.
Southend-on-Sea to Carmarthen train services, operated by Greater Anglia, depart from Southend Victoria station.
Southend-on-Sea to Carmarthen train services, operated by Greater Anglia, arrive at Carmarthen station.
Book your Southend-on-Sea to Carmarthen train tickets online with Greater Anglia, Elizabeth Line (TfL) and 2 other operators.
The distance between Southend-on-Sea and Carmarthen is 347.7 km. The road distance is 430 km.
You can take a train from Southend Victoria to Carmarthen via Stratford, London Paddington, and Swansea in around 5h 55m.