What is the city code of Sapporo?

SPK. On tickets and in flight searches, SPK stands for all Sapporo airports at once (CTS, OKD), while each airport keeps its own code.

Which is the busiest airport in Sapporo?

New Chitose Airport (CTS), with 25,849,752 passengers a year in open data.

2 airports · city code SPK

Code	Airport	Serves	Passengers / year	Routes
CTS	New Chitose Airport	Sapporo	25,849,752	2
OKD	Sapporo Okadama Airport	Sapporo	585,892	—

	CTS	OKD
CTS	—	46
OKD	46	—

Kilometres, straight line.

Route	To	Distance	Passengers
CTS – ICN	Seoul, South Korea	1,424 km	600,165 (6 mo)
CTS – SYD	Sydney, Australia	8,550 km	18,591

Sapporo has 2 airports with scheduled flights: CTS (New Chitose Airport), OKD (Sapporo Okadama Airport).