F91177
F91177 (Frontier Airlines) flies Los Angeles to Seattle. Of 448 departures recorded from December 2024 to July 2026, 78.9% left on time, according to the US BTS.
- On-time departures78.9%of 448 flights
- Average delay13.1 min
- July 202631▲ 158.3%vs July 2025
- Cancelled2.7%
according to the US BTS · Dec 17, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 20 of 20 periods have data
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | 18 | ▼ 40.0% |
| February | 23 | 19 | ▼ 17.4% |
| March | 27 | 29 | ▲ 7.4% |
| April | 26 | 30 | ▲ 15.4% |
| May | 18 | 31 | ▲ 72.2% |
| June | 9 | 30 | ▲ 233.3% |
| July | 12 | 31 | ▲ 158.3% |
| August | 16 | – | – |
| September | 17 | – | – |
| October | 18 | – | in progress |
| November | 24 | – | – |
| December | 25 | – | – |
| Year to date (Jan–Jul) | 145 | 188 | ▲ 29.7% |
according to the US BTS · December 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 20 of 20 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 | 67.9% | 76.5% | ▲ 12.7% |
| February | 91.3% | 100.0% | ▲ 9.5% |
| March | 74.1% | 85.2% | ▲ 15.0% |
| April | 84.6% | 75.9% | ▼ 10.4% |
| May | 66.7% | 83.9% | ▲ 25.8% |
| June | 77.8% | 80.0% | ▲ 2.9% |
| July | 83.3% | 90.3% | ▲ 8.4% |
| August | 62.5% | – | – |
| September | 81.3% | – | – |
| October | 83.3% | – | in progress |
| November | 81.8% | – | – |
| December | 40.9% | – | – |
| Year-to-date average (Jan–Jul) | 77.9% | 84.5% | ▲ 8.4% |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 20 of 20 periods have data
according to the US BTS · December 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 20 of 20 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 1 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
according to the US BTS · December 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 97.3% 436
- Cancelled 2.7% 12
Share of all recorded flights in the period, all legs. · Dec 17, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAX SEA Los Angeles International Airport – Seattle–Tacoma International Airport | 1,537 | 13.1 min | 78.9% | 448 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 15 | 15 | 86.7% | 0 |
| January 2025 | 30 | 28 | 67.9% | 2 |
| February 2025 | 23 | 23 | 91.3% | 0 |
| March 2025 | 27 | 27 | 74.1% | 0 |
| April 2025 | 26 | 26 | 84.6% | 0 |
| May 2025 | 18 | 18 | 66.7% | 0 |
| June 2025 | 9 | 9 | 77.8% | 0 |
| July 2025 | 12 | 12 | 83.3% | 0 |
| August 2025 | 16 | 16 | 62.5% | 0 |
| September 2025 | 17 | 16 | 81.3% | 1 |
| October 2025 | 18 | 18 | 83.3% | 0 |
| November 2025 | 24 | 22 | 81.8% | 2 |
| December 2025 | 25 | 22 | 40.9% | 3 |
| January 2026 | 18 | 17 | 76.5% | 1 |
| February 2026 | 19 | 19 | 100.0% | 0 |
| March 2026 | 29 | 27 | 85.2% | 2 |
| April 2026 | 30 | 29 | 75.9% | 1 |
| May 2026 | 31 | 31 | 83.9% | 0 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 31 | 31 | 90.3% | 0 |