The average bus between Le Mont-Saint-Michel and Saint-Cast-le-Guildo takes 9h 15m and the fastest bus takes 4h 35m. The bus service runs several times per day from Le Mont-Saint-Michel to Saint-Cast-le-Guildo. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run twice daily between Le Mont-Saint-Michel and Saint-Cast-le-Guildo. The earliest departure is at 7:55 AM in the morning, and the last departure from Le Mont-Saint-Michel is at 5:30 PM which arrives into Saint-Cast-le-Guildo at 10:14 AM. All services require a transfer at Gare SNCF and take an average of 9h 15m. The schedules shown below are for the next available departures.


4h 35m • 2 changes


7h 4m • 2 changes
Arrives next day


16h 49m • 2 changes


4h 35m • 2 changes


7h 4m • 2 changes
Arrives next day


16h 49m • 2 changes


4h 35m • 2 changes


7h 4m • 2 changes
Arrives next day


16h 49m • 2 changes
Want to know about travelling from Le Mont-Saint-Michel to Saint-Cast-le-Guildo? 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 bus from Le Mont-Saint-Michel to Saint-Cast-le-Guildo. However, there are services departing from Le Mont-Saint-Michel station and arriving at Saint-Cast-le-Guildo station via Gares TGV. The journey, including transfers, takes approximately 9h 15m.
Le Mont-Saint-Michel to Saint-Cast-le-Guildo bus services, operated by Navette Pontorson - Le Mont St Michel, depart from Gare routière station.
Le Mont-Saint-Michel to Saint-Cast-le-Guildo bus services, operated by Navette Pontorson - Le Mont St Michel, arrive at Office Tourisme - SAINT-CAST-LE-GUILDO station.
The distance between Le Mont-Saint-Michel and Saint-Cast-le-Guildo is 55.2 km. The road distance is 101 km.
You can take a bus from Le Mont Saint-Michel to Office Tourisme - SAINT-CAST-LE-GUILDO via Gare SNCF, Gare routière, and Gares - Quai B - SAINT-MALO in around 4h 59m.