Avelo Airlines is doubling the number of locations it flies to out of Charles M. Schulz-Sonoma County Airport. In early May, Avelo will begin offering non-stop flights from Santa Rosa to Kalispell, Montana; Boise, Idaho; Salem, Oregon; and Pasco, Washington. The airline already offers regular flights to Burbank and Las Vegas, and seasonal flights to Palm Springs, and Bend, Oregon. With eight destinations, Avelo Airlines will become Sonoma County Airport’s largest carrier by number of destinations.