Are there nonstop flights from Cincinnati / Covington (CVG) to Santa Rosa (STS)?

No. The fastest connection is via Denver, about 4h 52m of total flying time.

What is the fastest connection from Cincinnati / Covington (CVG) to Santa Rosa (STS)?

via Denver ≈ 4h 52m, via Salt Lake City ≈ 4h 52m, via San Francisco ≈ 4h 58m (estimated flying time, excluding layovers).

from 23,000 JAL miles (economy, one way, based on the published award charts).

Cincinnati Northern Kentucky International Airport (CVG) to Charles M. Schulz Sonoma County Airport (STS)・3,283 km

No nonstop flights. The fastest connection is via Denver (DEN), about 4h 52m of flying time (layover not included).

With milesJAL 23,000 miles+ (via PHX)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

12 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

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