The average train between Portsmouth and Saint-Nazaire takes 11h 55m and the fastest train takes 8h 41m. The train service runs several times per day from Portsmouth to Saint-Nazaire. 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 3 times a day between Portsmouth and Saint-Nazaire. The earliest departure is at 10:37 AM in the morning, and the last departure from Portsmouth is at 5:52 PM which arrives into Saint-Nazaire at 12:33 PM. All services require a transfer at London Waterloo Station and take an average of 11h 55m. The schedules shown below are for the next available departures.





9h 41m • 5 changes





10h 16m • 5 changes
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18h 40m • 5 changes





9h 57m • 5 changes





10h 16m • 5 changes
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19h 13m • 5 changes





9h 57m • 5 changes





10h 16m • 5 changes
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19h 13m • 5 changes





9h 57m • 5 changes





10h 16m • 5 changes
Arrives next day





19h 13m • 5 changes
Want to know about travelling from Portsmouth to Saint-Nazaire? 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 Portsmouth to Saint-Nazaire. However, there are services departing from Portsmouth station and arriving at Saint-Nazaire station via London Waterloo. The journey, including transfers, takes approximately 11h 55m.
Portsmouth to Saint-Nazaire train services, operated by South Western Railway, depart from Portsmouth & Southsea station.
Portsmouth to Saint-Nazaire train services, operated by South Western Railway, arrive at St Nazaire station.
Book your Portsmouth to Saint-Nazaire train tickets online with South Western Railway, London Underground (Tube) and 3 other operators.
The distance between Portsmouth and Saint-Nazaire is 400.3 km. The road distance is 1,102 km.
You can take a train from Portsmouth & Southsea to St Nazaire via London Waterloo Station, Waterloo station, Euston station, London St Pancras Intl, Lille Europe, Le Mans, and Nantes in around 10h 2m.