The average train between Carmarthen and The O2 Arena takes 4h 23m and the fastest train takes 4h 11m. The train service runs several times per day from Carmarthen to The O2 Arena. 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 Carmarthen and The O2 Arena. The earliest departure is at 7:23 AM in the morning, and the last departure from Carmarthen is at 7:20 PM which arrives into The O2 Arena at 12:49 AM. All services require a transfer at London Paddington and take an average of 4h 23m. The schedules shown below are for the next available departures.


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Want to know about travelling from Carmarthen to The O2 Arena? 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 The O2 Arena. However, there are services departing from Carmarthen station and arriving at The O2 Arena station via London Paddington. The journey, including transfers, takes approximately 4h 23m.
Carmarthen to The O2 Arena train services, operated by Great Western Railway (GWR), depart from Carmarthen station.
Carmarthen to The O2 Arena train services, operated by Great Western Railway (GWR), arrive at London Paddington station.
The distance between Carmarthen and The O2 Arena is 299.6 km. The road distance is 371 km.
Great Western Railway (GWR) operates a train from Carmarthen to London Paddington every 4 hours. Tickets cost £100–200 and the journey takes 4h 14m.