PenAir location at Denver International Airport. Please allow adequate time for check-in. Please visit our site for check-in times. http://bit.ly/Check-In-Times PenAir provides scheduled passenger service throughout Alaska, the northeast U.S. out of Boston, and the West Coast out of Portland, Oregon. We also operate two Saab 340 all cargo aircraft throughout Alaska. We are proud to be an Alaska Airlines codeshare and Mileage Plan partner. For reservations, visit www.penair.com.