Spokesman Mike Fergus says the single engine turboprop plane departed from Orville, Calif., and that the pilot had filed a flight plan showing a final destination of Bozeman, Montana.
More than two dozen flights out of San Diego were delayed Wednesday morning due to rain.
A storm system dumped snow and sleet on the nation's midsection, slowing holiday travel and posing a risk to those in affected areas.
The storm didn't just affect flights to the midwest and east. Over 50 flights out of Lindbergh field Wednesday morning were delayed. Of those, a little less than half were flights to other airports on the west coast.
Travelers experienced delays nationwide, too. The travel website flightStats.com reported 372 flights were canceled as of Wednesday morning, and 311 delayed.
The cancellations were mostly spread around airports that had been or soon would be in the path of the storm, a day after rare winter twisters damaged buildings in Louisiana and Alabama.
Blizzard conditions are forecast along a line stretching from Little Rock, Ark., to Cleveland, and some areas could get 10 inches of snow.
Drenching rainstorms rumbled across Georgia early today without causing any apparent damage. But Georgia Power officials say thousands of customers lost electricity in the state as the storm moved on toward the Carolinas.
On Christmas Day, the same storm whipped up numerous tornadoes in Louisiana and Alabama, knocking down countless trees and blowing the roofs off homes.
Oklahoma got snow, which caused many accidents, including a 21-vehicle pileup. Three people were killed by falling trees in Houston and in Louisiana.