F91815
F91815 (Frontier Airlines) flies Austin to Denver. Of 526 departures recorded from October 2024 to July 2026, 86.6% left on time, according to the US BTS.
- On-time departures86.6%of 526 flights
- Average delay11.4 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.8%
Recorded departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 15 | 31 | ▲ 106.7% |
| February | 22 | 28 | ▲ 27.3% |
| March | 30 | 31 | ▲ 3.3% |
| April | 29 | 13 | ▼ 55.2% |
| May | 31 | – | – |
| June | 30 | 21 | ▼ 30.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 73.3% | 83.3% | ▲ 13.6% |
| February | 77.3% | 89.3% | ▲ 15.6% |
| March | 80.0% | 100.0% | ▲ 25.0% |
| April | 86.2% | 92.3% | ▲ 7.1% |
| May | 90.0% | – | – |
| June | 83.3% | 85.7% | ▲ 2.9% |
| July | 80.0% | 87.1% | ▲ 8.9% |
| August | 80.7% | – | – |
| September | 93.3% | – | – |
| October | 96.8% | – | in progress |
| November | 96.7% | – | – |
| December | 83.9% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | – | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| 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 99.2% 522
- Cancelled 0.8% 4
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| AUS DEN Austin Bergstrom International Airport – Denver International Airport | 1,249 | 11.4 min | 86.6% | 526 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 5 | 80.0% | 1 |
| November 2024 | 11 | 11 | 81.8% | 0 |
| December 2024 | 13 | 13 | 76.9% | 0 |
| January 2025 | 15 | 15 | 73.3% | 0 |
| February 2025 | 22 | 22 | 77.3% | 0 |
| March 2025 | 30 | 30 | 80.0% | 0 |
| April 2025 | 29 | 29 | 86.2% | 0 |
| May 2025 | 31 | 30 | 90.0% | 1 |
| June 2025 | 30 | 30 | 83.3% | 0 |
| July 2025 | 31 | 30 | 80.0% | 1 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 30 | 30 | 96.7% | 0 |
| December 2025 | 31 | 31 | 83.9% | 0 |
| January 2026 | 31 | 30 | 83.3% | 1 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 31 | 100.0% | 0 |
| April 2026 | 13 | 13 | 92.3% | 0 |
| June 2026 | 21 | 21 | 85.7% | 0 |
| July 2026 | 31 | 31 | 87.1% | 0 |