Carrier route record
MQAZO→ORD
Envoy Air · Kalamazoo to Chicago
- Flights
- 717
- Period
- September 2025 to August 2026
- Share of route
- 76%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on AZO to ORD lands a B−, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 717 flights, with a median arrival 12 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Envoy on AZO to ORD from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
79.3%
Arrivals under 15 minutes late, of 685 completed flights
Avg delay
80 min
Across delayed arrivals only, not all flights
Cancelled
4.32%
National rate is 1.89%
Whole route
78.0%
Every carrier on AZO to ORD, 941 flights
These figures cover 717 flights between September 2025 and August 2026. Beyond the headline rate, 8.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
Envoy against every carrier on AZO to ORD
Envoy flew 717 of the 941 flights on AZO to ORD, most of the route. Its 79.3% on time is about level with the route as a whole at 78.0%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Envoy at 79.3% to SkyWest at 73.7%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air (this page) | 717 | 79.3% | 80 min | 4.32% | B− |
| SkyWest Airlinesthin sample | 224 | 73.7% | 112 min | 6.70% | C− |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When Envoy runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 12 points, against half a point between the best and worst carrier.
- 5am–8am254 flights83.9%
- 8am–11am94 flights83.0%
- 11am–2pm115 flights79.3%
- 2pm–5pm77 flights76.4%
- 5pm–8pm177 flights71.7%
- 8pm–5am—
Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 83.9% of the time, against 71.7% for the evening window. That is 12 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 254 flights scheduled in it.
Across the year
Envoy on AZO to ORD through the year
December is the weak month at 67.5% on time, against 90.6% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 93 flights.
Across the week, Saturday is the strongest day at 84.4% on time and Monday the weakest at 77.0%, a spread of 7 points.
Arrival by arrival
How late Envoy on AZO to ORD runs when it is late
Envoy on AZO to ORD often beats the schedule: 309 of 685 completed flights, 45%, arrived 15 minutes or more early. The 142 late arrivals split 43 under half an hour, 39 between 30 and 60 minutes, and 60 an hour or more.
- 15+ min early309 flights45.1%
- Within 15 min234 flights34.2%
- 15–29 min late43 flights6.3%
- 30–59 min late39 flights5.7%
- 1–2 hours late28 flights4.1%
- 2+ hours late32 flights4.7%
Scale runs 0% to 100%.
Share of 685 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 115 departures that left 15 minutes late or more, only 11 made it up before arrival. In the other direction, 38 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ORD.
The worst days
Worst days for Envoy on AZO to ORD
The latest arrival of the period was on 31 March 2026, 5 hours 48 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 31 March 2026 | 5 hours 48 minutes | National Airspace System |
| 11 January 2026 | 5 hours 39 minutes | Late-arriving aircraft |
| 16 April 2026 | 5 hours 17 minutes | Late-arriving aircraft |
| 31 December 2025 | 5 hours 9 minutes | Late-arriving aircraft |
| 27 April 2026 | 4 hours 41 minutes | National Airspace System |
Delay causes
Why Envoy runs late on this route
Late-arriving aircraft accounts for 46% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Late-arriving aircraft
- 38%National Airspace System
- 13%Carrier
- 3%Extreme weather
46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 15 to one. The split is drawn from 11,352 reported delay minutes.
38% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 4,348 minutes out of 11,000, against a national NAS share of 21%.
Cancellations run at 4.32%, against 1.89% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
8.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 122 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg runs 76.6% on time across 716 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 717 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Envoy on AZO to ORD
Put together: the delay figures matter less here than the 4.32% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 685 completed flights over 12 months sit behind that.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.