Best Time to Fly ORD to JAX: On-Time Stats by Hour & Airline
Chicago O'Hare International → Jacksonville International
Data through July 2026 · Last updated October 18, 2026
2,116 flights were scheduled from Chicago (ORD) to Jacksonville (JAX) in the last 12 months, and 73.9% of those that flew arrived on time, 3.8 points below the US average of 77.6%.
Among 5 airlines, Republic Airways led with 80.8% on time and American Airlines was last with 63.9%.
Over 24 months, Tuesday was the most reliable day (80% on time) and July the worst month (67%).
The cancellation rate was 1.4% (US average 1.8%).
ORD to JAX 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% | 57 min | 2.1% | 336 |
| SkyWest Airlines | 76.8% | 60 min | 2.2% | 184 |
| Envoy Air | 75.8% | 56 min | 0.4% | 237 |
| United Airlines | 75.2% | 81 min | 0.6% | 894 |
| American Airlines | 63.9% | 102 min | 2.6% | 464 |
| PSA Airlines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to JAX
On-time arrival % by scheduled departure hour (local time), 3,784 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 1 | |
| 6am–7am | 88.2% | 0.0% | 76 |
| 7am–8am | 85.5% | 0.6% | 633 |
| 8am–9am | 81.0% | 1.7% | 402 |
| 9am–10am | 85.3% | 0.0% | 129 |
| 10am–11am | 80.1% | 0.4% | 258 |
| 11am–12pm | 78.8% | 0.7% | 437 |
| 12pm–1pm | Limited data | 8 | |
| 1pm–2pm | 66.9% | 2.3% | 177 |
| 2pm–3pm | 73.6% | 4.1% | 171 |
| 3pm–4pm | 89.7% | 0.0% | 58 |
| 4pm–5pm | 72.7% | 0.0% | 33 |
| 5pm–6pm | 72.6% | 1.4% | 148 |
| 6pm–7pm | 66.2% | 1.4% | 740 |
| 7pm–8pm | 64.6% | 3.0% | 469 |
| 8pm–9pm | 82.9% | 2.4% | 42 |
| 11pm–12am | Limited data | 2 | |
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 JAX
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) | 67.7% | -10.1 pts | 2.9% | 70 |
| Christmas & New Year (Dec 20 - Jan 3) | 78.2% | +0.4 pts | 0.0% | 151 |
| Summer peak (Jun 15 - Aug 15) | 66.9% | -10.8 pts | 2.3% | 697 |
| All other days | 77.7% | — | 1.2% | 2,866 |
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).