Route · ORD → MKE · 2020–2025 BTS data
Chicago to Milwaukee
The ORD–MKE corridor (Chicago, IL → Milwaukee, WI) runs behind the national average, served by 15 carriers across roughly 67 miles.
Data updated 2026-06-13
- 74.5%
- On-time
- -4.5 pts
- vs US avg
- 82 min
- Delay when late
- 13,040
- Flights
Cancelled
2.3%
Best Month
Feb 2024 84%
Worst Month
Dec 2025 55%
Distance
67 mi
Carriers
15
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 405 | 182 | 17 | 0 | YX,OH,MQ,OO |
| Nov 2025 | 464 | 120 | 52 | 0 | OO,YX |
| Oct 2025 | 463 | 149 | 0 | 0 | OO,YX |
| Sep 2025 | 394 | 104 | 4 | 0 | OO |
| Aug 2025 | 399 | 120 | 22 | 1 | OO |
| Jul 2025 | 394 | 157 | 15 | 2 | OO,YX,MQ |
| Jun 2025 | 382 | 147 | 3 | 0 | OO,YX |
| May 2025 | 361 | 85 | 3 | 2 | OO |
| Apr 2025 | 368 | 71 | 4 | 0 | MQ,OO,YX |
| Mar 2025 | 243 | 84 | 3 | 0 | OO |
| Feb 2025 | 196 | 64 | 3 | 0 | OO,YX |
| Jan 2025 | 217 | 62 | 3 | 0 | OO,YX |
| Dec 2024 | 234 | 85 | 0 | 0 | OO,YX |
| Nov 2024 | 260 | 68 | 2 | 0 | OO,YX |
| Oct 2024 | 251 | 49 | 0 | 0 | OO,YX |
| Sep 2024 | 240 | 55 | 0 | 0 | OO |
| Aug 2024 | 228 | 78 | 1 | 1 | YX,OO |
| Jul 2024 | 233 | 76 | 6 | 1 | OO,UA |
| Jun 2024 | 178 | 54 | 2 | 1 | OO |
| May 2024 | 206 | 71 | 5 | 0 | YX,OO |
| Apr 2024 | 208 | 43 | 0 | 0 | MQ,OO |
| Mar 2024 | 203 | 34 | 1 | 0 | MQ,OO |
| Feb 2024 | 167 | 27 | 0 | 0 | MQ,OO |
| Jan 2024 | 155 | 50 | 12 | 0 | OO |
Cancellation Rate
2.3%
158 of 6,849 flights
Diversion Rate
0.1%
8 of 6,849 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.
Origin airport →MKE - Milwaukee
Full on-time, delay-cause, and seasonal performance for Milwaukee, WI.
Destination airport →Compare the two airports
See ORD and MKE side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–MKE.
Routes with a similar on-time rate
What the Data Says About ORD to MKE
On-time performance on the ORD to MKE pairing (Chicago to Milwaukee) trails a chunk of the network: 74.5% of 13,040 tracked flights arrived on schedule, with a 81.9-minute average delay on the ones that ran late. The route spans about 67 miles across 15 carriers. Cancellations over the trailing 24 months hit 2.3% (158 of 6,849 flights), with 0.1% diverted.
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 84% on-time, while Dec 2025 came in at just 55% - a 29-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.