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Chippewa County International Airport (CIU) currently has nonstop service to 3 destinations on 2 airlines in our latest departure data. The busiest route is to Detroit (DTW), and the largest operator here is Delta Air Lines with nonstops to 2 destinations.
Route data as of October 13, 2026, based on a 7-day departures sample.
This schedule snapshot includes nonstop flights from CIU to 3 destinations. The snapshot shows about 2.6 flights per day across those routes. The busiest options start with Detroit (DTW), Grand Rapids (GRR), Minneapolis (MSP).
0 international routes in this schedule set
United States 3
1/day
Bombardier CRJ · Cessna 208 Caravan
Ranked by destinations served, then daily frequency.
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
Chippewa County International Airport (CIU / KCIU) is located in Sault Ste Marie, United States.
The IATA code is CIU. The ICAO code is KCIU.
The busiest scheduled route from CIU in our current departure data is CIU to DTW (Detroit), with 1/day.
Delta Air Lines is the largest operator in our CIU schedule data, serving 2 destinations with 1-2/day.
This schedule snapshot includes 0 international routes and 3 domestic routes from CIU.
2 airlines operate at CIU. Top carriers include Delta Air Lines, CSA Air.
This schedule snapshot includes direct flights from CIU to 3 destinations including Detroit, Minneapolis, Grand Rapids.
View live arrivals and departures at CIU on FlightRadar24.
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