Route · MDW → GRR · 2020–2025 BTS data
Chicago to Grand Rapids
The MDW–GRR corridor (Chicago, IL → Grand Rapids, MI) runs behind the national average, served by 1 carrier across roughly 137 miles.
Data updated 2026-06-13
- 77.7%
- On-time
- -1.3 pts
- vs US avg
- 60 min
- Delay when late
- 5,540
- Flights
Cancelled
0.5%
Best Month
Oct 2024 91%
Worst Month
Dec 2025 65%
Distance
137 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 60 | 21 | 0 | 0 | WN |
| Nov 2025 | 59 | 7 | 2 | 0 | WN |
| Oct 2025 | 88 | 14 | 0 | 0 | WN |
| Sep 2025 | 86 | 16 | 0 | 0 | WN |
| Aug 2025 | 87 | 24 | 1 | 0 | WN |
| Jul 2025 | 89 | 30 | 1 | 0 | WN |
| Jun 2025 | 83 | 24 | 0 | 0 | WN |
| May 2025 | 65 | 18 | 0 | 0 | WN |
| Apr 2025 | 64 | 8 | 0 | 0 | WN |
| Mar 2025 | 66 | 8 | 0 | 0 | WN |
| Feb 2025 | 56 | 7 | 0 | 0 | WN |
| Jan 2025 | 63 | 14 | 0 | 0 | WN |
| Dec 2024 | 65 | 17 | 0 | 0 | WN |
| Nov 2024 | 61 | 6 | 0 | 0 | WN |
| Oct 2024 | 68 | 6 | 0 | 0 | WN |
| Sep 2024 | 85 | 9 | 0 | 0 | WN |
| Aug 2024 | 88 | 15 | 0 | 0 | WN |
| Jul 2024 | 89 | 27 | 1 | 0 | WN |
| Jun 2024 | 85 | 27 | 0 | 0 | WN |
| May 2024 | 89 | 23 | 0 | 0 | WN |
| Apr 2024 | 86 | 18 | 0 | 0 | WN |
| Mar 2024 | 88 | 25 | 0 | 0 | WN |
| Feb 2024 | 83 | 9 | 0 | 0 | WN |
| Jan 2024 | 89 | 23 | 4 | 1 | WN |
Cancellation Rate
0.5%
9 of 1,842 flights
Diversion Rate
0.1%
1 of 1,842 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MDW - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →GRR - Grand Rapids
Full on-time, delay-cause, and seasonal performance for Grand Rapids, MI.
Destination airport →Compare the two airports
See MDW and GRR side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to MDW–GRR.
Routes with a similar on-time rate
What the Data Says About MDW to GRR
The Chicago to Grand Rapids corridor (MDW to GRR) posts a 77.7% on-time rate on the lower edge of the average band, based on 5,540 tracked flights. Late flights run 59.6 minutes behind on average. 1 carrier cover the 137-mile route; over the last 24 months, 9 of 1,842 flights were cancelled (0.5%) and 0.1% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 91% on-time, while Dec 2025 came in at just 65% - a 26-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.