F91176
F91176 (Frontier Airlines) flies Seattle to Denver. Of 269 departures recorded from October 2024 to July 2026, 71.6% left on time, according to the US BTS.
- On-time departures71.6%of 269 flights
- Average delay20.7 min
- July 202631▲ 63.2%vs July 2025
- Cancelled1.9%
Recorded departures by month
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 6 | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 3 | 17 | ▲ 466.7% |
| May | 18 | 31 | ▲ 72.2% |
| June | 20 | 30 | ▲ 50.0% |
| July | 19 | 31 | ▲ 63.2% |
| August | 23 | – | – |
| September | – | – | – |
| October | 15 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.3% | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 33.3% | 76.5% | ▲ 129.4% |
| May | 77.8% | 93.6% | ▲ 20.3% |
| June | 55.0% | 70.0% | ▲ 27.3% |
| July | 50.0% | 83.9% | ▲ 67.7% |
| August | 45.5% | – | – |
| September | – | – | – |
| October | 78.6% | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | – | – | – |
| October | 1 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 98.1% 264
- Cancelled 1.9% 5
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 |
|---|---|---|---|---|
| SEA DEN Seattle–Tacoma International Airport – Denver International Airport | 1,645 | 20.7 min | 71.6% | 269 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 70.0% | 0 |
| November 2024 | 21 | 19 | 68.4% | 2 |
| December 2024 | 15 | 15 | 80.0% | 0 |
| January 2025 | 6 | 6 | 83.3% | 0 |
| April 2025 | 3 | 3 | 33.3% | 0 |
| May 2025 | 18 | 18 | 77.8% | 0 |
| June 2025 | 20 | 20 | 55.0% | 0 |
| July 2025 | 19 | 18 | 50.0% | 1 |
| August 2025 | 23 | 22 | 45.5% | 1 |
| October 2025 | 15 | 14 | 78.6% | 1 |
| April 2026 | 17 | 17 | 76.5% | 0 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |