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.
Cozumel's small but modern airport bustles with international flights with near-daily non-stop service from US hubs in Houston (United Airlines), DFW (American Airlines) Charlotte (US Airways) Atlanta (Delta Airline) and Miami (American Airline). Frontier flies non stop out of Denver part of the year.