F91248
F91248 (Frontier Airlines) flies Denver to Grand Rapids. Of 244 departures recorded from October 2024 to July 2026, 82.7% left on time, according to the US BTS.
Recorded departures by month
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 3 | 0.0% |
| February | – | – | – |
| March | – | – | – |
| April | – | 10 | – |
| May | 12 | 13 | ▲ 8.3% |
| June | 20 | 20 | 0.0% |
| July | 21 | 22 | ▲ 4.8% |
| August | 23 | – | – |
| September | 21 | – | – |
| October | 18 | – | in progress |
| November | 11 | – | – |
| December | 7 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 33.3% | 100.0% | ▲ 200.0% |
| February | – | – | – |
| March | – | – | – |
| April | – | 90.0% | – |
| May | 41.7% | 76.9% | ▲ 84.6% |
| June | 80.0% | 85.0% | ▲ 6.3% |
| July | 85.7% | 86.4% | ▲ 0.8% |
| August | 87.0% | – | – |
| September | 95.2% | – | – |
| October | 72.2% | – | in progress |
| November | 90.9% | – | – |
| December | 85.7% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | – | – |
| March | – | – | – |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 99.6% 243
- Cancelled 0.4% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN GRR Denver International Airport – Gerald R. Ford International Airport | 1,629 | 6.6 min | 82.7% | 244 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 92.9% | 0 |
| November 2024 | 18 | 17 | 76.5% | 1 |
| December 2024 | 8 | 8 | 100.0% | 0 |
| January 2025 | 3 | 3 | 33.3% | 0 |
| May 2025 | 12 | 12 | 41.7% | 0 |
| June 2025 | 20 | 20 | 80.0% | 0 |
| July 2025 | 21 | 21 | 85.7% | 0 |
| August 2025 | 23 | 23 | 87.0% | 0 |
| September 2025 | 21 | 21 | 95.2% | 0 |
| October 2025 | 18 | 18 | 72.2% | 0 |
| November 2025 | 11 | 11 | 90.9% | 0 |
| December 2025 | 7 | 7 | 85.7% | 0 |
| January 2026 | 3 | 3 | 100.0% | 0 |
| April 2026 | 10 | 10 | 90.0% | 0 |
| May 2026 | 13 | 13 | 76.9% | 0 |
| June 2026 | 20 | 20 | 85.0% | 0 |
| July 2026 | 22 | 22 | 86.4% | 0 |