Route Reliability
Denver → Grand Rapids
DEN–GRR · 1,015 miles · Denver International Airport to Gerald R. Ford International Airport
- 75%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 0.2%
- Cancelled
- 1,243
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Frontier Airlines86%147 flights
- 2.United Airlines76%729 flights
- 3.Southwest Airlines70%367 flights
What the data says
Morning-you made the right choice.
DEN–GRR flights departing between 9 AM–12 PM arrived on time 85% of the time, versus 61% between 6–9 PM.
Skip Thursday if you can.
DEN–GRR flights arrived on time 79% of the time on Tuesdays. On Thursdays: 70%.
Frontier Airlines has a clear lead on this route.
Frontier Airlines arrived on time 86% of the time on this route; Southwest Airlines managed 70%.
It basically never cancels.
Out of 1,243 scheduled flights, only 0.2% were cancelled.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon76%(186 flights)
- Tue79%(152 flights)
- Wed77%(166 flights)
- Thu70%(164 flights)
- Fri78%(184 flights)
- Sat77%(190 flights)
- Sun72%(195 flights)
- 9 AM–12 PM85%(493 flights)
- 12–3 PM80%(71 flights)
- 3–6 PM70%(537 flights)
- 6–9 PM61%(135 flights)
- 9 PM–12 AM—(1 flights)
Jun 63% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 118 |
| July 2025 | 67% | 120 |
| August 2025 | 70% | 121 |
| September 2025 | 78% | 115 |
| October 2025 | 78% | 111 |
| November 2025 | 81% | 102 |
| December 2025 | 65% | 102 |
| January 2026 | 78% | 95 |
| February 2026 | 83% | 83 |
| March 2026 | 81% | 69 |
| April 2026 | 86% | 95 |
| May 2026 | 82% | 106 |
Keep nerding
Based on 1,243 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.