Allegiant Air is adding nonstop flights from Oakland to Montrose Regional Airport in southwestern Colorado -- about 65 miles from the ski slopes of Telluride.

The service will be seasonal, running twice weekly from this Saturday, Dec. 15, to April 3. Flights will leave Oakland at 7 a.m. on Wednesdays and Saturdays and land in Colorado at 10 a.m. The return flights are 3 p.m. departures on those days with 4:10 p.m. Oakland arrivals.

Montrose boasts more than 800,000 acres of open space managed by the Bureau of Land Management -- areas that are popular for snowmobiling and cross-country skiing -- and is located near Gunnison National Park's Black Canyon, which offers ranger-guided snowshoeing treks.

Montrose is the 10th city served by Allegiant from Oakland. The Las Vegas-based carrier opened a base of operations at the airport earlier this year, and just recently launched flights to Palm Springs.

Details: www.allegiantair.com; www.oaklandairport.com.

Contact Linda Zavoral at lzavoral@mercurynews.com or follow her at Twitter.com/buh_byeTravel.