The average train between Llandeilo and London takes 5h 23m and the fastest train takes 3h 57m. The train service runs several times per day from Llandeilo to London. 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 5 times a day between Llandeilo and London. The earliest departure is at 7:02 AM in the morning, and the last departure from Llandeilo is at 9:46 PM which arrives into London at 10:51 AM. All services require a transfer, and take on average 5h 23m. The schedules shown below are for the next available departures.

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4h 27m • 1 changeWant to know about travelling from Llandeilo to London? 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 Llandeilo to London. However, there are services departing from Llandeilo station and arriving at London station via Swansea. The journey, including transfers, takes approximately 5h 23m.
Llandeilo to London train services, operated by Transport for Wales, depart from Llandeilo station.
Llandeilo to London train services, operated by Transport for Wales, arrive at London Paddington station.
Book your Llandeilo to London train tickets online with Transport for Wales and Great Western Railway (GWR).
The distance between Llandeilo and London is 269.7 km. The road distance is 355 km.
You can take a train from Llandeilo to London Paddington via Swansea in around 4h 37m.