1 Pain is located behind one eye or in the eye region, without changing sides.  Pain lasts a short time, generally 30 to 90 minutes (but can last for three hours); the headache will disappear, only to recur later that day (most sufferers get one to three headaches and some up to eight per day during a cluster period).
YYC Calgary International Airport, originally named McCall Field (IATA: YYC, ICAO: CYYC), is the international airport that serves Calgary, Alberta, Canada and the surrounding region; it is situated approximately 17 km (11 mi) northeast of downtown Calgary.
Facts and figures about flying from Denver to Aspen. 1  Every week SkyWest Airlines has 322 flights from Denver to Aspen. 2  Flights between Denver and Aspen are diverted an average of 2% of the time. 3  When traveling between Denver and Aspen, the most commonly used aircraft is a Canadair CRJ 700.