The average train between London and Sion takes 10h 53m and the fastest train takes 7h 56m. The train service runs several times per day from London to Sion. 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 London and Sion. The earliest departure is at 7:01 AM in the morning, and the last departure from London is at 8:31 PM which arrives into Sion at 12:56 PM. All services require a transfer at Paris Nord and take an average of 10h 53m. The schedules shown below are for the next available departures.



9h 25m • 3 changes



9h 26m • 3 changes
Arrives next day



16h 55m • 3 changes



9h 25m • 3 changes



9h 25m • 3 changes
Arrives next day



16h 55m • 3 changes
Want to know about travelling from London to Sion? 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 London to Sion. However, there are services departing from London station and arriving at Sion station via Paris Nord. The journey, including transfers, takes approximately 10h 53m.
London to Sion train services, operated by Eurostar, depart from London St Pancras Intl station.
London to Sion train services, operated by Eurostar, arrive at Sion station.
Book your London to Sion train tickets online with Eurostar, Société Nationale des Chemins de fer Français (SNCF) and 2 other operators.
The distance between London and Sion is 801.9 km. The road distance is 1,024 km.
You can take a train from London St Pancras Intl to Sion via Paris Nord, Paris Gare De Lyon, and Lausanne in around 8h 45m.