AZO to ORD flight delays & on-time performance
Nonstop flights from Kalamazoo/Battle Creek International Airport to Chicago O'Hare International Airport · 122 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at AZO or ORD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Kalamazoo (AZO) to Chicago (ORD) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 4.7% were cancelled, and 9% arrived an hour or more late.
- Envoy Air was the most punctual airline here (80% on time); SkyWest Airlines was the least (76%).
- Departures scheduled around 10am did best (87% on time); around 3pm did worst (70%).
- Saturday was the most reliable day to fly (82% on time) and Monday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (42%).
Which airline is most on time from AZO 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 |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 80% | 4.1% | 16 min | 8.5% | 802 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 76% | 7.4% | 24 min | 10.7% | 162 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am86%112 flights
- 6am86%127 flights
- 7am82%115 flights
- 10am87%143 flights
- 11am80%15 flights
- 12pm76%95 flights
- 3pm70%84 flights
- 4pm73%86 flights
- 5pm74%121 flights
- 7pm72%51 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%7.1% cancelled
- Tuesday77%2.2% cancelled
- Wednesday82%3.8% cancelled
- Thursday80%2.9% cancelled
- Friday80%7.1% cancelled
- Saturday82%2.9% cancelled
- Sunday77%6.4% 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 aircraft42%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)19%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather64%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)2%
- Security0%
AZO to ORD: common questions
- How often are AZO 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 Kalamazoo to Chicago cancelled?
- 4.7% of scheduled flights were cancelled (45 of 964).
- 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 82 min behind schedule on average, and 8.8% of flights were an hour or more late.
- How long is taxi time at AZO?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: AZO → ORD, nonstop flights by US airlines that report to the DOT. How we calculate this.