Best Time to Fly MCI to ORD: On-Time Stats by Hour & Airline
Kansas City International → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
4,197 flights were scheduled from Kansas City (MCI) to Chicago (ORD) in the last 12 months, and 75.7% of those that flew arrived on time, 1.9 points below the US average of 77.6%.
Republic Airways was the most punctual of the 6 airlines on the route at 80.8%, while PSA Airlines trailed at 51.4%.
September has been the best month (85% on time) and Sunday the weakest day of the week (74%).
2.9% of flights were cancelled, versus 1.8% nationally.
MCI 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 |
|---|---|---|---|---|
| Republic Airways | 80.8% | 115 min | 1.9% | 568 |
| American Airlines | 79.6% | 157 min | 1.2% | 248 |
| United Airlines | 77.3% | 87 min | 2.4% | 1,467 |
| Envoy Air | 75.8% | 77 min | 3.5% | 794 |
| SkyWest Airlines | 70.7% | 114 min | 3.7% | 1,080 |
| PSA Airlines | 51.4% | 122 min | 7.5% | 40 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MCI to ORD
On-time arrival % by scheduled departure hour (local time), 7,800 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 86.1% | 1.4% | 561 |
| 6am–7am | 86.7% | 1.7% | 664 |
| 7am–8am | 87.4% | 2.3% | 568 |
| 8am–9am | 86.1% | 1.4% | 503 |
| 9am–10am | 84.6% | 2.3% | 599 |
| 10am–11am | 90.2% | 1.0% | 515 |
| 11am–12pm | 82.0% | 1.0% | 824 |
| 12pm–1pm | 77.7% | 1.1% | 272 |
| 1pm–2pm | 77.2% | 1.6% | 367 |
| 2pm–3pm | 68.8% | 4.0% | 50 |
| 3pm–4pm | 73.5% | 1.8% | 854 |
| 4pm–5pm | 66.8% | 2.8% | 428 |
| 5pm–6pm | 66.7% | 3.8% | 347 |
| 6pm–7pm | 70.1% | 2.6% | 892 |
| 7pm–8pm | 58.6% | 8.8% | 352 |
| 9pm–10pm | Limited data | 4 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MCI 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) | 67.2% | -13.2 pts | 11.5% | 148 |
| Christmas & New Year (Dec 20 - Jan 3) | 83.5% | +3.1 pts | 0.0% | 262 |
| Summer peak (Jun 15 - Aug 15) | 72.5% | -7.8 pts | 2.8% | 1,413 |
| All other days | 80.4% | — | 1.9% | 5,977 |
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).