F91175
F91175 (Frontier Airlines) flies Denver to Seattle. Of 392 departures recorded from October 2024 to July 2026, 81.6% left on time, according to the US BTS.
- On-time departures81.6%of 392 flights
- Average delay8.5 min
- July 202631▲ 63.2%vs July 2025
- Cancelled1.5%
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 20 | 15 | ▼ 25.0% |
| February | 21 | 19 | ▼ 9.5% |
| March | 20 | 3 | ▼ 85.0% |
| April | 18 | 8 | ▼ 55.6% |
| May | 20 | 9 | ▼ 55.0% |
| June | 20 | 27 | ▲ 35.0% |
| July | 19 | 31 | ▲ 63.2% |
| August | 23 | – | – |
| September | 1 | – | – |
| October | 25 | – | in progress |
| November | 19 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 138 | 112 | ▼ 18.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 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 | 75.0% | 46.7% | ▼ 37.8% |
| February | 81.0% | 84.2% | ▲ 4.0% |
| March | 60.0% | 100.0% | ▲ 66.7% |
| April | 77.8% | 85.7% | ▲ 10.2% |
| May | 85.0% | 100.0% | ▲ 17.6% |
| June | 60.0% | 96.0% | ▲ 60.0% |
| July | 66.7% | 96.8% | ▲ 45.1% |
| August | 78.3% | – | – |
| September | 100.0% | – | – |
| October | 95.8% | – | in progress |
| November | 73.7% | – | – |
| December | 0.0% | – | – |
| Year-to-date average (Jan–Jul) | 72.2% | 87.1% | ▲ 20.6% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
according to the US BTS · October 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 98.5% 386
- Cancelled 1.5% 6
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 SEA Denver International Airport – Seattle–Tacoma International Airport | 1,645 | 8.5 min | 81.6% | 392 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 28 | 27 | 85.2% | 1 |
| December 2024 | 25 | 25 | 92.0% | 0 |
| January 2025 | 20 | 20 | 75.0% | 0 |
| February 2025 | 21 | 21 | 81.0% | 0 |
| March 2025 | 20 | 20 | 60.0% | 0 |
| April 2025 | 18 | 18 | 77.8% | 0 |
| May 2025 | 20 | 20 | 85.0% | 0 |
| June 2025 | 20 | 20 | 60.0% | 0 |
| July 2025 | 19 | 18 | 66.7% | 1 |
| August 2025 | 23 | 23 | 78.3% | 0 |
| September 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 25 | 24 | 95.8% | 1 |
| November 2025 | 19 | 19 | 73.7% | 0 |
| December 2025 | 1 | 1 | 0.0% | 0 |
| January 2026 | 15 | 15 | 46.7% | 0 |
| February 2026 | 19 | 19 | 84.2% | 0 |
| March 2026 | 3 | 3 | 100.0% | 0 |
| April 2026 | 8 | 7 | 85.7% | 1 |
| May 2026 | 9 | 9 | 100.0% | 0 |
| June 2026 | 27 | 25 | 96.0% | 2 |
| July 2026 | 31 | 31 | 96.8% | 0 |