Route · ORD → GRB · 2020–2025 BTS data
Chicago to Green Bay
The ORD–GRB corridor (Chicago, IL → Green Bay, WI) runs ahead of the national average, served by 17 carriers across roughly 173 miles.
Data updated 2026-06-13
- 79.4%
- On-time
- +0.4 pts
- vs US avg
- 73 min
- Delay when late
- 9,678
- Flights
Cancelled
2.2%
Best Month
Feb 2024 90%
Worst Month
Dec 2025 53%
Distance
173 mi
Carriers
17
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 247 | 116 | 10 | 1 | YX,MQ,OO |
| Nov 2025 | 272 | 58 | 24 | 0 | OO,MQ,YX |
| Oct 2025 | 214 | 31 | 1 | 0 | OO,YX,MQ |
| Sep 2025 | 194 | 33 | 2 | 1 | MQ,OO |
| Aug 2025 | 240 | 63 | 10 | 0 | OO,YX,MQ |
| Jul 2025 | 263 | 106 | 4 | 0 | OO,YX,MQ |
| Jun 2025 | 275 | 82 | 0 | 1 | OO,YX,MQ |
| May 2025 | 209 | 31 | 2 | 0 | OO,YX,MQ |
| Apr 2025 | 178 | 21 | 1 | 0 | MQ,OO,YX |
| Mar 2025 | 118 | 43 | 2 | 0 | YX,OO |
| Feb 2025 | 89 | 27 | 1 | 1 | OO,YX |
| Jan 2025 | 112 | 32 | 3 | 0 | OO,YX |
| Dec 2024 | 80 | 19 | 1 | 1 | OO |
| Nov 2024 | 95 | 15 | 4 | 0 | OO,MQ |
| Oct 2024 | 161 | 22 | 0 | 0 | MQ,OO |
| Sep 2024 | 212 | 65 | 0 | 0 | OO,MQ |
| Aug 2024 | 177 | 67 | 0 | 0 | MQ,YX,OO |
| Jul 2024 | 68 | 16 | 1 | 0 | MQ,OO,YX |
| Jun 2024 | 162 | 52 | 5 | 1 | MQ,OO,YX |
| May 2024 | 131 | 52 | 4 | 0 | MQ,OO,YX |
| Apr 2024 | 178 | 38 | 3 | 0 | MQ,OO,YX |
| Mar 2024 | 160 | 25 | 0 | 0 | MQ,YX,OO |
| Feb 2024 | 154 | 16 | 2 | 0 | MQ,OO,YX |
| Jan 2024 | 130 | 42 | 11 | 0 | MQ,YX,OO |
Cancellation Rate
2.2%
91 of 4,119 flights
Diversion Rate
0.1%
6 of 4,119 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 →GRB - Green Bay
Full on-time, delay-cause, and seasonal performance for Green Bay, WI.
Destination airport →Compare the two airports
See ORD and GRB 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–GRB.
Routes with a similar on-time rate
What the Data Says About ORD to GRB
9,678 tracked flights put the ORD to GRB pairing (Chicago to Green Bay) at a 79.4% on-time rate, squarely in line with the wider network. Delays that do occur run 72.9 minutes on average. Across the 173-mile route and its 17 carriers, the trailing 24 months show 2.2% cancelled and 0.1% diverted (4,119 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 90% on-time, while Dec 2025 came in at just 53% - a 37-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from ORD to GRB? ▼
What is the cancellation rate for ORD to GRB? ▼
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Flight Guides
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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.