F91789
F91789 (Frontier Airlines) flies Denver to Portland. Of 152 departures recorded from October 2024 to September 2025, 78.3% left on time, according to the US BTS.
Recorded departures by month
Short series — F91789 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods10 periods
| Period | Departures 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | 14 | – |
| February | – | 6 | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 8 | – |
| June | – | 25 | – |
| July | – | 31 | – |
| August | – | 25 | – |
| September | – | 1 | – |
| October | 20 | – | – |
| November | 14 | – | – |
| December | 8 | – | – |
according to the US BTS · October 2024 → September 2025
On-time departures by month
Short series — F91789 has only 10 months so far. Enough to show the level now, not enough to read a trend.
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 periods10 periods
| Period | On time 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | 71.4% | – |
| February | – | 83.3% | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 87.5% | – |
| June | – | 84.0% | – |
| July | – | 83.9% | – |
| August | – | 68.0% | – |
| September | – | 100.0% | – |
| October | 80.0% | – | – |
| November | 64.3% | – | – |
| December | 87.5% | – | – |
according to the US BTS · October 2024 → September 2025
Average departure delay by month
Short series — F91789 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → September 2025
Cancelled departures by month
Short series — F91789 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods10 periods
| Period | Cancelled 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | 0 | – |
| September | – | 0 | – |
| October | 0 | – | – |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → September 2025
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 100.0% 152
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Sep 1, 2025
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN PDX Denver International Airport – Portland International Airport | 1,592 | 8.2 min | 78.3% | 152 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 14 | 14 | 64.3% | 0 |
| December 2024 | 8 | 8 | 87.5% | 0 |
| January 2025 | 14 | 14 | 71.4% | 0 |
| February 2025 | 6 | 6 | 83.3% | 0 |
| May 2025 | 8 | 8 | 87.5% | 0 |
| June 2025 | 25 | 25 | 84.0% | 0 |
| July 2025 | 31 | 31 | 83.9% | 0 |
| August 2025 | 25 | 25 | 68.0% | 0 |
| September 2025 | 1 | 1 | 100.0% | 0 |