F91790
F91790 (Frontier Airlines) flies Portland to Denver. Of 531 departures recorded from October 2024 to July 2026, 86.0% left on time, according to the US BTS.
- On-time departures86.0%of 531 flights
- Average delay3.7 min
- July 202622▼ 29.0%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 | 30 | 8 | ▼ 73.3% |
| February | 28 | – | – |
| March | 31 | 15 | ▼ 51.6% |
| April | 30 | 21 | ▼ 30.0% |
| May | 31 | 22 | ▼ 29.0% |
| June | 30 | 22 | ▼ 26.7% |
| July | 31 | 22 | ▼ 29.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 23 | – | – |
| December | 15 | – | – |
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 | 86.7% | 62.5% | ▼ 27.9% |
| February | 92.9% | – | – |
| March | 87.1% | 66.7% | ▼ 23.5% |
| April | 86.7% | 85.7% | ▼ 1.1% |
| May | 77.4% | 90.9% | ▲ 17.4% |
| June | 79.3% | 95.5% | ▲ 20.4% |
| July | 89.7% | 90.9% | ▲ 1.4% |
| August | 90.3% | – | – |
| September | 86.7% | – | – |
| October | 86.7% | – | in progress |
| November | 91.3% | – | – |
| December | 60.0% | – | – |
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 | 0 | – |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 2 | 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% 527
- Cancelled 0.8% 4
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 |
|---|---|---|---|---|
| PDX DEN Portland International Airport – Denver International Airport | 1,592 | 3.7 min | 86.0% | 531 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 30 | 29 | 100.0% | 1 |
| December 2024 | 31 | 31 | 80.7% | 0 |
| January 2025 | 30 | 30 | 86.7% | 0 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 30 | 29 | 79.3% | 1 |
| July 2025 | 31 | 29 | 89.7% | 2 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 30 | 30 | 86.7% | 0 |
| November 2025 | 23 | 23 | 91.3% | 0 |
| December 2025 | 15 | 15 | 60.0% | 0 |
| January 2026 | 8 | 8 | 62.5% | 0 |
| March 2026 | 15 | 15 | 66.7% | 0 |
| April 2026 | 21 | 21 | 85.7% | 0 |
| May 2026 | 22 | 22 | 90.9% | 0 |
| June 2026 | 22 | 22 | 95.5% | 0 |
| July 2026 | 22 | 22 | 90.9% | 0 |