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K21 Bus in Grenoble

A bus service operated by Sncf (Société Nationale des Chemins de fer Français)
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Liste des arrêts
      Nombre d'arrêts : 15
      Carte

      St-Marcellin (Isère) ➞ Grenoble

      St-Marcellin (Isère)

      		06:1606:2607:0307:0307:4008:0309:0313:0315:0316:0317:0317:0318:0318:0319:0320:0321:03

      Vinay

      		—06:4107:18—07:5508:1809:1813:1815:1816:1817:18—18:18—19:1820:18—

      Poliénas

      		06:41——07:28—08:3309:3313:3315:3316:33—17:28—18:2819:3320:33—

      Tullins-Fures

      		06:5307:0107:3807:4008:1508:4509:4513:4515:4516:4517:3817:4018:3818:4019:4520:4521:33

      Grenoble

      		07:2307:3108:0808:1008:4509:1510:1514:1516:1517:1518:0818:1019:0819:1020:1521:1522:03
      Times marked with "—" indicate that the vehicle does not stop at this stop.

      Grenoble ➞ St-Marcellin (Isère)

      Grenoble05:4206:5007:5008:5011:4212:5013:5014:5015:5016:5016:5517:4817:5017:5518:4219:42
      Tullins-Fures06:1207:2008:2009:2012:1213:2014:2015:2016:2017:2017:2518:1818:2018:2519:1220:12
      Poliénas06:24———12:24——————18:30——19:2420:24
      Vinay06:4007:4008:4009:4012:4013:4014:4015:4016:4017:40——18:40—19:4020:40
      St-Marcellin (Isère)06:5507:5508:5509:5512:5513:5514:5515:5516:5517:5517:5518:5518:5518:5519:5520:55
      Times marked with "—" indicate that the vehicle does not stop at this stop.
      Times marked with "—" indicate that the vehicle does not stop at this stop.
      Last updated on 13 mars 2026
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      Route Path (Streets & Roads)

      Aller: St-Marcellin (Isère) ➞ Grenoble
      Impasse des Noyers - Route de la Gare - Rue de la Frise
      Retour: Grenoble ➞ St-Marcellin (Isère)
      Rue de la Frise - Route de la Gare - Impasse des Noyers
      Toutes les données sont disponibles dans le flux GTFS : geops-chl

      Bus K21 FAQ

      • What time does the K21 bus start operating?

        Services on the K21 bus start at 06:16 on lundi, mardi, mercredi, jeudi, vendredi, samedi, dimanche.

      • What time does the K21 bus stop working?

        Services on the K21 bus stop at 22:03 on lundi, mardi, mercredi, jeudi, vendredi, samedi, dimanche.

      • 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 (Grenoble Buses)

      The first stop of the K21 bus route is St-Marcellin (Isère) and the last stop is Grenoble. K21 is operational during tous les jours.

      Additional information: K21 has 5 stops and the total trip duration for this route is approximately 72 minutes.

      See why over 2 million users trust and consider busmaps.com as the best public transport website. busmaps gives you Grenoble Buses suggested routes, real-time bus tracker, line route maps in Grenoble, 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