Route · GRR → DEN · 2020–2025 BTS data
Grand Rapids to Denver
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), GRR to DEN (Grand Rapids to Denver) ranks #1784 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 82.8%
- On-time
- +3.8 pts
- vs US avg
- 68 min
- Delay when late
- 7,083
- Flights
- #1784 of 4927
- Corpus placement
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 |
GRR–DEN seasonal on-time pattern
Best: October (90.9%) · weakest: February (76.5%)
Strongest calendar month
October
90.9% on-time · ~113 flights/mo
Busiest calendar month
July
~121 flights/mo avg
Weakest calendar month
February
76.5% on-time · ~77 flights/mo
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.
GRR on-time profileDEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileCompare the two airports
See GRR and DEN side by side on delays, cancellations, and reliability.
Compare GRR vs DENOrigin-hub reliability standing
Mid-pack among GRR departures
From GRR, this corridor sits with 11 other 75–85% on-time routes out of 20 tracked departures, not the hub's reliability leaders (5 at ≥85%) and not the softest ( 4 below 75%). Destination: Denver · fleet on-time rank #2030 of 4927.
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.
On the multi-year calendar, GRR–DEN peaks in October at 90.9% on-time while July carries the heaviest traffic (~121 flights per month) ; the softest month is February at 76.5%, a 14.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does GRR to DEN rank among US routes by traffic? ▼
How often are flights delayed from GRR to DEN? ▼
What is the cancellation rate for GRR to DEN? ▼
How far is the flight from GRR to DEN? ▼
When is the best time to fly from GRR to DEN? ▼
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 GRR–DEN data
GRR–DEN runs 3.8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare GRR and DEN airport profiles: delay causes and top routes differ even on the same corridor. GRR airport
- If your dates flex, October (90.9% on-time) beats February (76.5%) on this corridor. Seasonal chart
- 4 other routes post a similar 82.8% 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.