F91279
F91279 (Frontier Airlines) flies Miami to Denver. Of 471 departures recorded from December 2024 to July 2026, 84.8% left on time, according to the US BTS.
- On-time departures84.8%of 471 flights
- Average delay12.9 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.1%
according to the US BTS · Dec 2, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 20 of 20 periods have data
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 31 | ▲ 24.0% |
| February | 10 | 27 | ▲ 170.0% |
| March | 1 | 31 | ▲ 3,000.0% |
| April | 11 | 30 | ▲ 172.7% |
| May | 31 | 31 | 0.0% |
| June | 26 | 30 | ▲ 15.4% |
| July | 31 | 31 | 0.0% |
| August | 27 | – | – |
| September | 21 | – | – |
| October | 22 | – | in progress |
| November | 23 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 135 | 211 | ▲ 56.3% |
according to the US BTS · December 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 20 of 20 periods have data
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 92.0% | 70.0% | ▼ 23.9% |
| February | 100.0% | 96.3% | ▼ 3.7% |
| March | 100.0% | 74.2% | ▼ 25.8% |
| April | 90.9% | 86.7% | ▼ 4.7% |
| May | 83.9% | 83.9% | 0.0% |
| June | 80.8% | 86.7% | ▲ 7.3% |
| July | 93.3% | 83.9% | ▼ 10.1% |
| August | 76.9% | – | – |
| September | 95.2% | – | – |
| October | 86.4% | – | in progress |
| November | 91.3% | – | – |
| December | 72.4% | – | – |
| Year-to-date average (Jan–Jul) | 91.6% | 83.1% | ▼ 9.3% |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 20 of 20 periods have data
according to the US BTS · December 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 20 of 20 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
according to the US BTS · December 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 98.9% 466
- Cancelled 1.1% 5
Share of all recorded flights in the period, all legs. · Dec 2, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MIA DEN Miami International Airport – Denver International Airport | 2,749 | 12.9 min | 84.8% | 471 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 1 | 1 | 100.0% | 0 |
| January 2025 | 25 | 25 | 92.0% | 0 |
| February 2025 | 10 | 10 | 100.0% | 0 |
| March 2025 | 1 | 1 | 100.0% | 0 |
| April 2025 | 11 | 11 | 90.9% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 26 | 26 | 80.8% | 0 |
| July 2025 | 31 | 30 | 93.3% | 1 |
| August 2025 | 27 | 26 | 76.9% | 1 |
| September 2025 | 21 | 21 | 95.2% | 0 |
| October 2025 | 22 | 22 | 86.4% | 0 |
| November 2025 | 23 | 23 | 91.3% | 0 |
| December 2025 | 31 | 29 | 72.4% | 2 |
| January 2026 | 31 | 30 | 70.0% | 1 |
| February 2026 | 27 | 27 | 96.3% | 0 |
| March 2026 | 31 | 31 | 74.2% | 0 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 31 | 31 | 83.9% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |