Best Time to Fly MCW to ORD: On-Time Stats by Hour & Airline
Mason City Municipal → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 68.7% of Mason City (MCW) to Chicago (ORD) flights arrived on time (627 scheduled flights). That is 8.9 points below the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (81% on time) and June the worst month (61%).
The cancellation rate was 7.3% (US average 1.8%).
MCW to ORD 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 | 68.7% | 99 min | 7.3% | 627 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MCW to ORD
On-time arrival % by scheduled departure hour (local time), 1,223 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 82.5% | 3.7% | 107 |
| 10am–11am | 86.0% | 2.8% | 359 |
| 12pm–1pm | 91.1% | 4.8% | 83 |
| 1pm–2pm | Limited data | 30 | |
| 2pm–3pm | 78.0% | 7.9% | 89 |
| 6pm–7pm | 54.9% | 6.8% | 308 |
| 7pm–8pm | 65.9% | 6.9% | 247 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MCW to ORD
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) | 85.7% | +10.1 pts | 20.8% | 53 |
| Summer peak (Jun 15 - Aug 15) | 61.6% | -14.0 pts | 4.0% | 199 |
| All other days | 75.6% | — | 4.3% | 947 |
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).