F91178
F91178 (Frontier Airlines) is a multi-stop service on 2 routes, busiest Seattle to Los Angeles. Of 336 departures recorded from October 2024 to July 2026, 82.8% left on time, according to the US BTS.
- On-time departures82.8%of 336 flights
- Average delay6.5 min
- July 202631
- Cancelled1.5%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 7 | ▼ 77.4% |
| February | 18 | 19 | ▲ 5.6% |
| March | 17 | 29 | ▲ 70.6% |
| April | 22 | 29 | ▲ 31.8% |
| May | 22 | 31 | ▲ 40.9% |
| June | 6 | 30 | ▲ 400.0% |
| July | – | 31 | – |
| August | 7 | – | – |
| September | 17 | – | – |
| October | 4 | – | 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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.0% | 100.0% | ▲ 25.0% |
| February | 94.4% | 84.2% | ▼ 10.8% |
| March | 62.5% | 85.2% | ▲ 36.3% |
| April | 72.7% | 89.3% | ▲ 22.8% |
| May | 81.8% | 90.3% | ▲ 10.4% |
| June | 100.0% | 60.0% | ▼ 40.0% |
| July | – | 83.9% | – |
| August | 85.7% | – | – |
| September | 88.2% | – | – |
| October | 100.0% | – | 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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 2 | ▲ 100.0% |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | 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.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.5% 331
- Cancelled 1.5% 5
Share of all recorded flights in the period, all legs. · Oct 28, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA LAX Seattle–Tacoma International Airport – Los Angeles International Airport | 1,537 | 6.6 min | 82.7% | 335 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 1 | 1 | 100.0% | 0 |
| December 2024 | 15 | 15 | 93.3% | 0 |
| January 2025 | 31 | 30 | 80.0% | 1 |
| February 2025 | 18 | 18 | 94.4% | 0 |
| March 2025 | 17 | 16 | 62.5% | 1 |
| April 2025 | 22 | 22 | 72.7% | 0 |
| May 2025 | 22 | 22 | 81.8% | 0 |
| June 2025 | 6 | 6 | 100.0% | 0 |
| August 2025 | 7 | 7 | 85.7% | 0 |
| September 2025 | 17 | 17 | 88.2% | 0 |
| October 2025 | 4 | 4 | 100.0% | 0 |
| January 2026 | 7 | 7 | 100.0% | 0 |
| February 2026 | 19 | 19 | 84.2% | 0 |
| March 2026 | 29 | 27 | 85.2% | 2 |
| April 2026 | 29 | 28 | 89.3% | 1 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 30 | 30 | 60.0% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |