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  6. K21 Route

Bus K21

A bus service operated by Sncf (Société Nationale des Chemins de fer Français)
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List of stops
    Number of stops: 15
    Map
    Mondays, Thursdays and Sundays

    Grenoble-Gare-Routière ➞ Chambéry-Challes-les-Eaux

    The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.
    The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.
    Last updated on March 28, 2026
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    Route Path (Streets & Roads)

    Grenoble-Gare-Routière ➞ Chambéry-Challes-les-Eaux
    Place de la Gare - Avenue Pierre de la Gontrie - Avenue de la Boisse
    All data is available in GTFS feed: geops-chl

    Bus K21 FAQ

    • What time does the K21 bus start operating?

      Services on the K21 bus start at 22:38 on Monday, Thursday, Sunday.

    • What time does the K21 bus stop working?

      Services on the K21 bus stop at 00:15 +1 on Monday, Thursday, Sunday.

    • Is there a K21 bus stop near me?

      Click here to view the nearest K21 bus stop.

    K21 bus Route Map

    K21 bus Line Map PDF Version: K21 timetable, stops and map

    K21 (Chambery Buses)

    The first stop of the K21 bus route is Grenoble-Gare-Routière and the last stop is Chambéry-Challes-les-Eaux. K21 is operational during everyday.

    Additional information: K21 has 4 stops and the total trip duration for this route is approximately 97 minutes.

    See why over 2 million users trust and consider busmaps.com as the best public transport website. busmaps gives you Chambery Buses suggested routes, real-time bus tracker, line route maps in Chambery, and helps to find the closest K21 bus stops near you. No internet available? Download an offline PDF map and bus schedule for the K21 bus to take on your trip.

    K21 bus near me