The average train between Llanelli and Southampton takes 5h 41m and the fastest train takes 4h 28m. The train service runs several times per day from Llanelli to Southampton. 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 every 4 hours between Llanelli and Southampton. The earliest departure is at 5:56 AM in the morning, and the last departure from Llanelli is at 7:28 PM which arrives into Southampton at 7:46 AM. All services require a transfer, and take on average 5h 41m. The schedules shown below are for the next available departures.

5h • 1 change

4h 41m • 1 change

4h 51m • 1 change

4h 41m • 1 change

5h • 1 change

4h 41m • 1 change

4h 51m • 1 change

4h 41m • 1 change

5h • 1 change

4h 41m • 1 change

4h 51m • 1 change

4h 41m • 1 change

5h • 1 change

4h 41m • 1 change

4h 51m • 1 change

4h 41m • 1 change

5h • 1 change

4h 41m • 1 change

4h 51m • 1 change

4h 41m • 1 change

5h 6m • 1 change

4h 39m • 1 change

4h 37m • 1 change

4h 32m • 1 change
Want to know about travelling from Llanelli to Southampton? 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 Llanelli to Southampton. However, there are services departing from Llanelli station and arriving at Southampton station via Bristol Temple Meads. The journey, including transfers, takes approximately 5h 41m.
Llanelli to Southampton train services, operated by Transport for Wales, depart from Llanelli station.
Llanelli to Southampton train services, operated by Transport for Wales, arrive at Southampton Central station.
Book your Llanelli to Southampton train tickets online with Transport for Wales and Great Western Railway (GWR).
The distance between Llanelli and Southampton is 210.3 km. The road distance is 275 km.
You can take a train from Llanelli to Southampton Central via Bristol Temple Meads in around 4h 36m.