Route Reliability
Chicago → CIU
ORD–CIU · 341 miles · Chicago O'Hare International Airport to CIU Airport
74
Usually Fine
WanderNerd Reliability Score
- 73%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 0.8%
- Cancelled
- 127
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 73% of the time across 127 flights. No comparison to make.
What the data says
Mondays have been rough.
ORD–CIU flights arrived on time 84% of the time on Saturdays and just 59% on Mondays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon59%(17 flights)
- Tue65%(17 flights)
- Wed77%(17 flights)
- Thu82%(17 flights)
- Fri72%(18 flights)
- Sat84%(19 flights)
- Sun70%(20 flights)
82%
Sep
Jun 72% → Sep 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 72% | 29 |
| July 2025 | 58% | 31 |
| August 2025 | 80% | 30 |
| September 2025 | 82% | 28 |
Keep nerding
Based on 127 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.