Wilmington (ILM) to Chicago (ORD): On-Time Performance
Data through July 2026
The calendar drives reliability on ILM–ORD. October 2025 flights landed on schedule 94% of the time, but July 2025 dropped to 48% — a gap of 46 points. Across the full period the route averages 73% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 48%), which matters most in the rough months.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 2.1%
- Flights/day
- 1.5
- last 12 months
- Duration
- 2h 38m
- scheduled
- Distance
- 760 mi
Best airline from ILM to ORD
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 77% | 18 min | 1.4% | 503 |
| SkyWest Airlines | 71% | 33 min | 3.3% | 182 |
| American Airlines | 62% | 34 min | 2.9% | 70 |
| Republic Airways | 61% | 25 min | 2.8% | 109 |
Monthly on-time trend
Best time to fly from ILM to ORD
Aim for departures around 7 a.m. (92% on-time); avoid 7 p.m. departures (40%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 79% | 29 min |
| Tuesday | 79% | 14 min |
| Wednesday | 77% | 20 min |
| Thursday | 62% | 21 min |
| Friday | 71% | 35 min |
| Saturday | 74% | 19 min |
| Sunday | 69% | 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 aircraft33%
- Airline operations24%
- National airspace system27%
- Weather16%
Frequently asked questions
- How often are flights from ILM to ORD delayed?
- 27% of ILM–ORD 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 23 minutes.
- Which airline is most reliable from ILM to ORD?
- Envoy Air has the best on-time record on this route at 77%, based on 503 flights. 4 airlines flew ILM–ORD frequently enough to compare in this period.
- What is the best time of day to fly from ILM to ORD?
- Departures around 7 a.m. have the best record (92% on-time), while departures around 7 p.m. have the worst (40%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ILM to ORD?
- The scheduled ILM–ORD flight time averages 2h 38m over 760 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are ILM to ORD flights cancelled?
- 2.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from ILM to ORD?
- July 2025 was the roughest month in this dataset, with only 48% of arrivals on time. The best was October 2025 at 94%. If your dates are flexible, that 46-point gap is worth planning around.
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Based on 864 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.