Chicago (ORD) to Jacksonville (JAX): On-Time Performance
Data through July 2026
Chicago (ORD) to Jacksonville (JAX) effectively runs on two schedules. In May 2025, 87% of arrivals were on time; in July 2025 that fell to 58% — a 29-point seasonal swing. Across the full period the route averages 75% on-time against a national 78%. Morning departures also hold up better than evening ones (82% vs 66%), which matters most in the rough months.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 5.8
- last 12 months
- Duration
- 2h 33m
- scheduled
- Distance
- 864 mi
Best airline from ORD to JAX
5 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 82% | 10 min | 1.7% | 469 |
| SkyWest Airlines | 81% | 12 min | 1.3% | 311 |
| Envoy Air | 78% | 13 min | 1.4% | 731 |
| United Airlines | 76% | 18 min | 0.8% | 1,786 |
| American Airlines | 65% | 35 min | 2.8% | 639 |
Monthly on-time trend
Best time to fly from ORD to JAX
Aim for departures around 3 p.m. (90% on-time); avoid 7 p.m. departures (65%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 19 min |
| Tuesdaybest | 80% | 15 min |
| Wednesday | 78% | 17 min |
| Thursday | 77% | 15 min |
| Friday | 70% | 22 min |
| Saturday | 77% | 18 min |
| Sunday | 71% | 23 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft52%
- Airline operations25%
- National airspace system17%
- Weather5%
Frequently asked questions
- How often are flights from ORD to JAX delayed?
- 25% of ORD–JAX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 18 minutes.
- Which airline is most reliable from ORD to JAX?
- Republic Airways has the best on-time record on this route at 82%, based on 469 flights. 5 airlines flew ORD–JAX frequently enough to compare in this period.
- What is the best time of day to fly from ORD to JAX?
- Departures around 3 p.m. have the best record (90% on-time), while departures around 7 p.m. have the worst (65%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ORD to JAX?
- The scheduled ORD–JAX flight time averages 2h 33m over 864 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are ORD to JAX flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from ORD to JAX?
- July 2025 was the roughest month in this dataset, with only 58% of arrivals on time. The best was May 2025 at 87%. If your dates are flexible, that 29-point gap is worth planning around.
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Based on 3,937 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.