Route number is 21. Remember it—the number stays the same everywhere: on the stop display, in apps, on the vehicle itself. Look for 21 specifically. If you're not sure you found the right stop, just ask someone nearby: 'Does bus 21 stop here?'

This route serves the Saratov (Russia) region. In larger metro areas, routes can pass through several districts or towns. To know for sure if it works for you, pull up the route map and check the key stops and direction.

Average interval is 00:24. This can shift with traffic, weather, and road conditions. For accurate wait times, check real-time tracking or the stop display if there is one.

Intervals depend on time of day and day of week: 00:12 @ (Mo-Su 07:00-09:00); 00:12 @ (Mo-Su 17:00-19:00). Usually runs more frequently during rush hour, less often in the evening and on weekends. If timing matters, build in buffer time and check live tracking before you leave.

This route is part of the 'RU:SAR:Саратов:автобусы' transit system. Within one network, payment and transfer rules are often consistent. Terms can differ though, so check current fares and payment methods in up-to-date sources before your trip.