The average train between Carmarthen and Hammersmith takes 4h 26m and the fastest train takes 3h 51m. There is a train service every few hours from Carmarthen to Hammersmith. 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 Carmarthen and Hammersmith. The earliest departure is at 4:37 AM at night, and the last departure from Carmarthen is at 10:41 PM which arrives into Hammersmith at 7:34 AM. All services require a transfer at London Paddington and take an average of 4h 26m. The schedules shown below are for the next available departures.


4h 8m • 2 changes


4h 31m • 2 changes
Arrives next day


8h 53m • 2 changes


3h 57m • 2 changes


3h 56m • 2 changes


4h 1m • 2 changes


4h 15m • 2 changes


3h 57m • 2 changes


3h 56m • 2 changes


4h 1m • 2 changes


4h 15m • 2 changes


3h 57m • 2 changes


3h 56m • 2 changes


4h 1m • 2 changes


4h 15m • 2 changes
Want to know about travelling from Carmarthen to Hammersmith? 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 Carmarthen to Hammersmith. However, there are services departing from Carmarthen station and arriving at Hammersmith station via London Paddington. The journey, including transfers, takes approximately 4h 26m.
Carmarthen to Hammersmith train services, operated by Great Western Railway (GWR), depart from Carmarthen station.
Carmarthen to Hammersmith train services, operated by Great Western Railway (GWR), arrive at London Paddington station.
Book your Carmarthen to Hammersmith train tickets online with Great Western Railway (GWR), London Underground (Tube) and Transport for Wales.
The distance between Carmarthen and Hammersmith is 284.3 km. The road distance is 362 km.
Great Western Railway (GWR) operates a train from Carmarthen to London Paddington every 4 hours. Tickets cost £100–190 and the journey takes 3h 49m.