Calgary International Airport, (IATA: YYC, ICAO: CYYC), is an international airport that serves Calgary, Alberta,
Canada and the surrounding region; it is situtated approximately 17 km (11 mi) northeast of the downtown core.
The airport offers scheduled daily nonstop flights to major cities in Canada, Europe and the United States. Calgary International
Airport is the base city of WestJet Airlines, is a hub of flag carrier Air Canada, and is also a hub for Air Canada Jazz.
The airport is one of 8 Canadian airports that has US Border Pre-clearance facilities.
The terminal has four concourses, one of which is subdivided into two wings, one wing to accommodate international flights, and another wing to
accommodate international flights to the United States utilizing the airport's US border pre-clearance facilities. Plans for a fifth concourse
are also being developed.
Comprising gates 1-19, Concourse A is used mostly for domestic outbound flights, although US-bound flights (without US Pre-Clearance)
and other international flights sometimes depart from the A-gates. However, as this concourse is not connected to the Canada Border Services Agency
(CBSA) hall, only domestic flights arrive into concourse A. Gates 1 to 8 are ground boarding and utilized for most Air Canada Express flights
(excluding flights operating on the CRJ 705) and all Central Mountain Air flights. Gates 9 to 19 are jet-bridged and are used for Air Canada
and Air Canada Express flights. The Air Canada Maple Leaf Lounge is located immediately beyond security on Concourse A. Concourse A has five
security lanes that handle all passengers departing from either the A or B Concourse.
Gates 20-28 are swing gates between Concourse B and C. Any US bound flight is treated as a "C" Gate, whereas any Canadian-bound/International-bound
flight is treated as a "B" Gate. Concourse A and B are connected behind security by a walkway, facilitating connections for Air Canada and Air Canada Express
flights. When all Gates in the B/C section are "C" gates, then this walkway is closed due to US Customs & Border Protection pre-clearance for US-bound flights.
Air Canada and Air Canada Express flights use the B concourse for domestic arrivals and domestic departures; Air Canada also uses it for international
arrivals and international departures. During domestic and international operations all passenger utilize Concourse A security lanes. Concourse B
security lanes were permanently closed in 2011 with the equipment and holdroom being transferred for additional security lanes at Concourse C.
Gates 20 to 34 are swing gates. Gates 31 to 34 will swing between Concourse C and D. On flights originating in Calgary passengers bound for the
United States go through US Customs & Border Protection pre-clearance prior to boarding their flights. The flight is then treated on arrival in the U.S. as
a domestic flight. Concourse C has six dedicated security lanes after US pre-clearance facilities. Concourse C is only used for US bound flights.
The C concourse contains the Servisair Calgary Rocky Mountain lounge (co-branded as the WestJet Lounge).
Gates 31 to 50 are located on this concourse. Gates 31 to 34 can also be used for US-bound flights and are shared with Concourse C. Gates 41, 42, 43
and 44 can be utilized for international arrivals and departures. There are five security lanes dedicated to Concourse D flights. The D concourse
contains the Servisair Calgary Chinook lounge (co-branded as the WestJet Lounge).