Route · ORD → AZO · 2020–2025 BTS data
Chicago to Kalamazoo
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ORD to AZO (Chicago to Kalamazoo) ranks #3518 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 83.6%
- On-time
- +4.6 pts
- vs US avg
- 65 min
- Delay when late
- 2,524
- Flights
- #3518 of 4927
- Corpus placement
Cancelled
3.6%
Best Month
Oct 2022 98%
Worst Month
Jul 2025 63%
Distance
122 mi
Carriers
6
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 89 | 26 | 6 | 0 | MQ |
| Nov 2025 | 87 | 10 | 12 | 0 | MQ |
| Oct 2025 | 91 | 18 | 0 | 1 | OO,MQ |
| Sep 2025 | 86 | 11 | 1 | 0 | MQ |
| Aug 2025 | 85 | 17 | 2 | 0 | MQ |
| Jul 2025 | 88 | 33 | 4 | 0 | MQ |
| Jun 2025 | 74 | 25 | 2 | 0 | MQ |
| Jan 2023 | 49 | 13 | 0 | 1 | MQ |
| Dec 2022 | 60 | 12 | 3 | 0 | MQ |
| Nov 2022 | 59 | 7 | 6 | 0 | MQ |
| Oct 2022 | 62 | 1 | 0 | 1 | MQ |
| Sep 2022 | 60 | 8 | 0 | 0 | MQ |
| Aug 2022 | 62 | 10 | 2 | 0 | MQ |
| Jul 2022 | 62 | 11 | 0 | 0 | MQ |
| Jun 2022 | 60 | 5 | 0 | 0 | MQ |
| May 2022 | 62 | 10 | 0 | 0 | MQ |
| Apr 2022 | 60 | 8 | 3 | 0 | MQ |
| Mar 2022 | 62 | 7 | 1 | 0 | MQ |
| Feb 2022 | 56 | 7 | 6 | 0 | MQ |
| Jan 2022 | 63 | 15 | 5 | 0 | OO,MQ |
| Dec 2021 | 76 | 8 | 5 | 0 | OO,MQ |
| Nov 2021 | 61 | 4 | 0 | 0 | MQ |
| Oct 2021 | 56 | 15 | 0 | 0 | MQ |
| Sep 2021 | 50 | 8 | 0 | 0 | MQ |
ORD–AZO seasonal on-time pattern
Best: April (94.4%) · weakest: July (75.6%)
Strongest calendar month
April
94.4% on-time · ~65 flights/mo
Busiest calendar month
February
~80 flights/mo avg
Weakest calendar month
July
75.6% on-time · ~71 flights/mo
Cancellation Rate
3.6%
58 of 1,620 flights
Diversion Rate
0.2%
3 of 1,620 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
ORD on-time profileAZO - Kalamazoo
Full on-time, delay-cause, and seasonal performance for Kalamazoo, MI.
AZO on-time profileCompare the two airports
See ORD and AZO side by side on delays, cancellations, and reliability.
Compare ORD vs AZOOrigin-hub reliability standing
Mid-pack among ORD departures
From ORD, this corridor sits with 147 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (10 at ≥85%) and not the softest ( 11 below 75%). Destination: Kalamazoo · fleet on-time rank #1734 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–AZO.
Routes with a similar on-time rate
What the Data Says About ORD to AZO
Bureau of Transportation Statistics records show Chicago to Kalamazoo (ORD to AZO) running a 83.6% on-time rate over 2,524 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 65.3 minutes. The 122-mile corridor is served by 6 carriers, and over the last 24 months 3.6% of 1,620 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Oct 2022 posted the strongest performance at 98% on-time, while Jul 2025 came in at just 63% - a 36-point swing worth factoring into travel timing.
On the multi-year calendar, ORD–AZO peaks in April at 94.4% on-time while February carries the heaviest traffic (~80 flights per month) ; the softest month is July at 75.6%, a 18.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does ORD to AZO rank among US routes by traffic? ▼
How often are flights delayed from ORD to AZO? ▼
What is the cancellation rate for ORD to AZO? ▼
How far is the flight from ORD to AZO? ▼
When is the best time to fly from ORD to AZO? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using ORD–AZO data
ORD–AZO runs 4.6 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare ORD and AZO airport profiles: delay causes and top routes differ even on the same corridor. ORD airport
- If your dates flex, April (94.4% on-time) beats July (75.6%) on this corridor. Seasonal chart
- 4 other routes post a similar 83.6% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.