Route · GRR → DEN · 2020–2025 BTS data
Grand Rapids to Denver
The GRR–DEN corridor (Grand Rapids, MI → Denver, CO) runs ahead of the national average, served by 20 carriers across roughly 1,015 miles.
Data updated 2026-06-13
- 82.8%
- On-time
- +3.8 pts
- vs US avg
- 68 min
- Delay when late
- 7,083
- Flights
Cancelled
0.6%
Best Month
Oct 2024 92%
Worst Month
Dec 2025 67%
Distance
1,015 mi
Carriers
20
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 102 | 34 | 0 | 0 | WN,F9,UA |
| Nov 2025 | 102 | 12 | 0 | 0 | UA,F9,WN |
| Oct 2025 | 111 | 11 | 0 | 0 | UA,WN,F9 |
| Sep 2025 | 114 | 15 | 0 | 0 | UA,WN,F9 |
| Aug 2025 | 121 | 21 | 0 | 1 | WN,F9,UA |
| Jul 2025 | 122 | 21 | 2 | 1 | UA,WN,F9 |
| Jun 2025 | 118 | 23 | 0 | 0 | UA,WN,F9 |
| May 2025 | 105 | 19 | 1 | 0 | UA,WN,F9 |
| Apr 2025 | 90 | 17 | 0 | 0 | UA,WN |
| Mar 2025 | 93 | 12 | 0 | 0 | UA,WN |
| Feb 2025 | 84 | 17 | 0 | 0 | UA,WN |
| Jan 2025 | 96 | 30 | 0 | 0 | UA,WN,F9 |
| Dec 2024 | 101 | 22 | 0 | 0 | F9,UA,WN |
| Nov 2024 | 107 | 23 | 1 | 0 | UA,WN,F9 |
| Oct 2024 | 118 | 10 | 0 | 0 | UA,WN,F9 |
| Sep 2024 | 120 | 17 | 0 | 0 | WN,UA,F9 |
| Aug 2024 | 123 | 23 | 1 | 0 | F9,WN,UA |
| Jul 2024 | 119 | 30 | 0 | 0 | F9,UA,WN |
| Jun 2024 | 120 | 31 | 0 | 0 | F9,UA,WN |
| May 2024 | 115 | 32 | 1 | 0 | F9,UA,WN |
| Apr 2024 | 109 | 25 | 0 | 0 | F9,UA,WN |
| Mar 2024 | 108 | 17 | 2 | 0 | F9,UA,WN |
| Feb 2024 | 87 | 15 | 0 | 1 | UA,WN |
| Jan 2024 | 94 | 27 | 7 | 0 | F9,WN,UA |
Cancellation Rate
0.6%
15 of 2,579 flights
Diversion Rate
0.1%
3 of 2,579 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
GRR - Grand Rapids
Full on-time, delay-cause, and seasonal performance for Grand Rapids, MI.
Origin airport →DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Destination airport →Compare the two airports
See GRR and DEN side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to GRR–DEN.
Routes with a similar on-time rate
What the Data Says About GRR to DEN
Bureau of Transportation Statistics records show Grand Rapids to Denver (GRR to DEN) running a 82.8% on-time rate over 7,083 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 68.0 minutes. The 1,015-mile corridor is served by 20 carriers, and over the last 24 months 0.6% of 2,579 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 92% on-time, while Dec 2025 came in at just 67% - a 25-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.