Are there nonstop flights from Kaluga (KLF) to St. Petersburg (LED)?

Yes. Red Wings Airlines, Azimuth fly this route. Flight time is about 1h 19m.

Kaluga → St. Petersburg

Grabtsevo Airport (KLF) to Pulkovo Airport (LED)・689 km

Nonstop flights available (2 airlines). Flight time about 1h 19m. Nonstop return flights also operate.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.