Best Time to Fly OMA to ORD: On-Time Stats by Hour & Airline
Eppley Airfield → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
3,063 flights were scheduled from Omaha (OMA) to Chicago (ORD) in the last 12 months, and 75.5% of those that flew arrived on time, 2.1 points below the US average of 77.6%.
Among 5 airlines, American Airlines led with 78.3% on time and SkyWest Airlines was last with 72.4%.
Over 24 months, Tuesday was the most reliable day (82% on time) and July the worst month (71%).
The cancellation rate was 3.0% (US average 1.8%).
OMA 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 |
|---|---|---|---|---|
| American Airlines | 78.3% | 81 min | 2.3% | 261 |
| Envoy Air | 77.0% | 70 min | 3.8% | 827 |
| United Airlines | 75.4% | 93 min | 2.2% | 1,372 |
| Republic Airways | 73.0% | 86 min | 3.6% | 196 |
| SkyWest Airlines | 72.4% | 84 min | 4.5% | 399 |
| PSA Airlines | Limited data | 8 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly OMA to ORD
On-time arrival % by scheduled departure hour (local time), 5,553 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 89.9% | 1.4% | 290 |
| 6am–7am | 86.7% | 2.9% | 411 |
| 7am–8am | 85.4% | 2.3% | 344 |
| 8am–9am | 88.4% | 1.6% | 607 |
| 9am–10am | 83.5% | 4.1% | 145 |
| 10am–11am | 80.7% | 1.8% | 111 |
| 11am–12pm | 82.0% | 1.1% | 743 |
| 12pm–1pm | 71.8% | 2.2% | 318 |
| 1pm–2pm | 76.7% | 1.0% | 206 |
| 2pm–3pm | 78.7% | 1.9% | 158 |
| 3pm–4pm | 71.0% | 1.4% | 797 |
| 4pm–5pm | 76.3% | 3.8% | 79 |
| 5pm–6pm | 68.5% | 4.8% | 167 |
| 6pm–7pm | 69.5% | 1.9% | 827 |
| 7pm–8pm | 57.4% | 6.1% | 346 |
| 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 OMA 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) | 59.8% | -19.3 pts | 10.2% | 98 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.9% | -5.2 pts | 2.8% | 181 |
| Summer peak (Jun 15 - Aug 15) | 73.1% | -6.0 pts | 2.7% | 1,091 |
| All other days | 79.0% | — | 1.8% | 4,183 |
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).