ILM to ORD flight delays & on-time performance
Nonstop flights from Wilmington International Airport to Chicago O'Hare International Airport · 760 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ILM or ORD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Wilmington (ILM) to Chicago (ORD) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 2.2% were cancelled, and 8% arrived an hour or more late.
- Republic Airways was the most punctual airline here (82% on time); SkyWest Airlines was the least (77%).
- Departures scheduled around 7am did best (92% on time); around 7pm did worst (58%).
- Wednesday was the most reliable day to fly (86% on time) and Thursday the least (76%).
- The largest source of delay minutes was late-arriving aircraft (29%).
Which airline is most on time from ILM to ORD?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 82% | 0.0% | 14 min | 10.2% | 49 |
| Envoy AirRegional airline operating American Eagle flights. | 81% | 1.8% | 18 min | 6.7% | 383 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 77% | 4.8% | 40 min | 10.1% | 104 |
| American Airlines | 33% | 0.0% | 108 min | 33.3% | 6 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am86%44 flights
- 7am92%53 flights
- 11am90%87 flights
- 12pm84%94 flights
- 1pm83%29 flights
- 3pm71%182 flights
- 4pm74%29 flights
- 7pm58%20 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday79%5.1% cancelled
- Tuesday77%3.0% cancelled
- Wednesday86%1.4% cancelled
- Thursday76%3.8% cancelled
- Friday77%0.0% cancelled
- Saturday84%2.5% cancelled
- Sunday77%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft29%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion26%
- Extreme weather17%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)8%
- Security0%
ILM to ORD: common questions
- How often are ILM to ORD flights on time?
- 80% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Wilmington to Chicago cancelled?
- 2.2% of scheduled flights were cancelled (12 of 542).
- How long are typical delays?
- Across all flights the average arrival delay was 23 min (early arrivals count as zero). Flights that were late arrived 107 min behind schedule on average, and 8.0% of flights were an hour or more late.
- How long is taxi time at ILM?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ORD to ILM — 83% on time
More flights from Wilmington
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ILM → ORD, nonstop flights by US airlines that report to the DOT. How we calculate this.