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Airport Reliability

CIU · Sault Ste. Marie

Sault Ste. Marie, MI (CIU)

80%
Departures within 15 minutes
21 min
Average departure delay
76%
Arrivals within 15 minutes
5.1%
Departures cancelled

Based on 847 departures and 848 arrivals. Data through May 2026.

What the data says

The 12–3 PM departure wins.

Departures from CIU departing between 12–3 PM arrived on time 87% of the time, versus 71% between 3–6 PM.

Skip Saturday if you can.

Departures from CIU arrived on time 84% of the time on Wednesdays. On Saturdays: 72%.

Ticking up lately.

Departures from CIU arrived on time 78% of the time over the last three months in the data, compared with 72% in the three months before that.

When CIU gets messy

On-time by departure window
  • 6–9 AM80%(345 flights)
  • 12–3 PM87%(122 flights)
  • 3–6 PM71%(333 flights)
On-time by weekday
  • Mon77%(111 flights)
  • Tue79%(110 flights)
  • Wed84%(114 flights)
  • Thu77%(114 flights)
  • Fri77%(116 flights)
  • Sat72%(116 flights)
  • Sun75%(119 flights)
On-time trend by month
84%
May

Jun 78% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%89
July 202562%91
August 202580%90
September 202583%88
October 202590%62
November 202583%58
December 202575%57
January 202675%52
February 202667%48
March 202673%51
April 202676%50
May 202684%64

Airlines departing CIU

Busiest routes from CIU

Based on 847 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.