Best Time to Fly ORD to MCW: On-Time Stats by Hour & Airline
Chicago O'Hare International → Mason City Municipal
Data through July 2026 · Last updated October 18, 2026
627 flights were scheduled from Chicago (ORD) to Mason City (MCW) in the last 12 months, and 71.7% of those that flew arrived on time, 5.9 points below the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (81% on time) and August the worst month (71%).
The cancellation rate was 6.2% (US average 1.8%).
ORD to MCW on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 71.7% | 72 min | 6.2% | 627 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to MCW
On-time arrival % by scheduled departure hour (local time), 1,232 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 22 | |
| 7am–8am | 82.4% | 2.7% | 444 |
| 8am–9am | Limited data | 29 | |
| 9am–10am | 82.7% | 3.5% | 85 |
| 11am–12pm | Limited data | 30 | |
| 12pm–1pm | 73.2% | 7.9% | 89 |
| 4pm–5pm | 65.1% | 6.9% | 436 |
| 5pm–6pm | 77.4% | 2.1% | 97 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ORD to MCW
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 24 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 81.4% | +5.1 pts | 15.1% | 53 |
| Summer peak (Jun 15 - Aug 15) | 68.4% | -7.9 pts | 3.5% | 203 |
| All other days | 76.3% | — | 3.9% | 952 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).