It is one of the busiest airports in Japan, and it has two terminals (domestic + international).
The airport has two runways. Both are 3,000 meters (9,843 ft / 1.86 miles) long.
There's an adjacent Japan Air Self-Defense Force facility, the Chitose Air Base, which also has two runways. One of them has a length of 4,000 meters (13,123 ft / 2.49 miles), while the other is 2,700 meters (8,858 ft / 1.68 miles) long.
The airport and the air base are interconnected by taxiways, and aircraft at either facility can enter the other by ground if permitted. Thus, the combined facilities have a total of 4 runways.
The international terminal faces Chitose Air Base.
Prior to the construction of this terminal, an area on the north side of the domestic terminal was used for international flights.
The international terminal, an expansion of the domestic terminal, and an approximately 250-meter (820 ft) long passageway connecting the two terminals were built between 2008 and 2011.
An expansion of the international terminal has taken place, having now a floor count of 8 above ground instead of 4 (hotel addition, 2020).
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