The average train between Reading and Llanelli takes 2h 59m and the fastest train takes 2h 39m. There is a train service every few hours from Reading to Llanelli. 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 Reading and Llanelli. The earliest departure is at 7:13 AM in the morning, and the last departure from Reading is at 11:27 PM which arrives into Llanelli at 5:08 AM. All services require a transfer, and take on average 2h 59m. The schedules shown below are for the next available departures.

2h 48m • 1 change

2h 45m • 1 change

2h 51m • 1 change

2h 44m • 1 change

2h 48m • 1 change

2h 45m • 1 change

2h 51m • 1 change

2h 44m • 1 change

2h 43m • 1 change

2h 44m • 1 change

2h 45m • 1 change

3h 9m • 1 change
Want to know about travelling from Reading to Llanelli? 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 Reading to Llanelli. However, there are services departing from Reading station and arriving at Llanelli station via Swansea. The journey, including transfers, takes approximately 2h 59m.
Reading to Llanelli train services, operated by Great Western Railway (GWR), depart from Reading station.
Reading to Llanelli train services, operated by Great Western Railway (GWR), arrive at Swansea station.
Book your Reading to Llanelli train tickets online with Great Western Railway (GWR) and Transport for Wales.
The distance between Reading and Llanelli is 221.9 km. The road distance is 266 km.
Great Western Railway (GWR) operates a train from Reading to Swansea hourly. Tickets cost £70–140 and the journey takes 2h 28m.