The average train between Harold Wood and Cardiff takes 2h 56m and the fastest train takes 2h 39m. There is an hourly train service from Harold Wood to Cardiff. 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 Harold Wood and Cardiff. The earliest departure is at 5:56 AM in the morning, and the last departure from Harold Wood is at 11:49 PM which arrives into Cardiff at 8:06 AM. All services require a transfer, and take on average 2h 56m. The schedules shown below are for the next available departures.

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2h 48m • 1 changeWant to know about travelling from Harold Wood to Cardiff? 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 Harold Wood to Cardiff. However, there are services departing from Harold Wood station and arriving at Cardiff Central station via London Paddington station. The journey, including transfers, takes approximately 2h 56m.
Harold Wood to Cardiff train services, operated by Elizabeth Line (TfL), depart from Harold Wood station.
Harold Wood to Cardiff train services, operated by Great Western Railway (GWR), arrive at Cardiff Central station.
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The distance between Harold Wood and Cardiff is 236.2 km. The road distance is 274 km.
You can take a train from Harold Wood to Cardiff Central via London Paddington in around 3h 10m.