ORD to CMI flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to University of Illinois Willard Airport · 135 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or CMI right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chicago (ORD) to Champaign/Urbana (CMI) arrived on time 73% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3.7% were cancelled, and 11% arrived an hour or more late.
- Envoy Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 12pm did best (93% on time); around 7pm did worst (64%).
- Tuesday was the most reliable day to fly (78% on time) and Thursday the least (68%).
- The largest source of delay minutes was late-arriving aircraft (58%).
Which airline is most on time from ORD to CMI?
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 |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 73% | 3.7% | 18 min | 11.2% | 1,066 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am73%47 flights
- 9am75%192 flights
- 10am89%76 flights
- 11am50%11 flights
- 12pm93%41 flights
- 1pm93%30 flights
- 2pm78%80 flights
- 4pm74%21 flights
- 5pm64%199 flights
- 6pm74%55 flights
- 7pm64%99 flights
- 8pm68%211 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%4.2% cancelled
- Tuesday78%0.9% cancelled
- Wednesday74%3.4% cancelled
- Thursday68%2.5% cancelled
- Friday71%5.0% cancelled
- Saturday75%5.2% cancelled
- Sunday74%3.6% 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 aircraft58%
- Air traffic control & airport congestion19%
- Airline (crew, maintenance, cleaning, fueling)15%
- Extreme weather8%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather69%
- Air traffic control & airport congestion31%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
ORD to CMI: common questions
- How often are ORD to CMI flights on time?
- 73% 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 Chicago to Champaign/Urbana cancelled?
- 3.7% of scheduled flights were cancelled (39 of 1,066).
- How long are typical delays?
- Across all flights the average arrival delay was 18 min (early arrivals count as zero). Flights that were late arrived 64 min behind schedule on average, and 11.2% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 26 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CMI to ORD — 76% on time
More flights from Chicago
More flights to Champaign/Urbana
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → CMI, nonstop flights by US airlines that report to the DOT. How we calculate this.