The average train between London and Orsay takes 3h 32m and the fastest train takes 3h 3m. There is a train service every few hours from London to Orsay. 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 London and Orsay. The earliest departure is at 6:01 AM in the morning, and the last departure from London is at 8:01 PM which arrives into Orsay at 6:13 AM. All services require a transfer, and take on average 3h 32m. The schedules shown below are for the next available departures.

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3h 15m • 1 changeWant to know about travelling from London to Orsay? 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 Orsay. However, there are services departing from London St Pancras Intl station and arriving at Orsay - Ville station via Paris Nord station. The journey, including transfers, takes approximately 3h 32m.
London to Orsay train services, operated by Eurostar, depart from London St Pancras Intl station.
London to Orsay train services, operated by Réseau Express Régional (RER Paris), arrive at Orsay - Ville station.
The distance between London and Orsay is 353.5 km.
You can take a train from London St Pancras Intl to Orsay - Ville via Paris Nord in around 3h 17m.