F91949
F91949 (Frontier Airlines) flies Atlanta to San Francisco. Of 332 departures recorded from November 2024 to May 2026, 56.1% left on time, according to the US BTS.
Recorded departures by month
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 17 | – |
| February | – | 16 | – |
| March | 4 | 31 | ▲ 675.0% |
| April | 8 | 30 | ▲ 275.0% |
| May | 27 | 20 | ▼ 25.9% |
| June | 30 | – | – |
| July | 31 | – | – |
| August | 27 | – | – |
| September | 21 | – | – |
| October | 21 | – | in progress |
| November | 24 | – | – |
| December | 23 | – | – |
according to the US BTS · November 2024 → May 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 56.3% | – |
| February | – | 68.8% | – |
| March | 25.0% | 55.2% | ▲ 120.7% |
| April | 50.0% | 70.0% | ▲ 40.0% |
| May | 51.9% | 55.0% | ▲ 6.1% |
| June | 44.8% | – | – |
| July | 58.1% | – | – |
| August | 48.2% | – | – |
| September | 52.4% | – | – |
| October | 61.9% | – | in progress |
| November | 66.7% | – | – |
| December | 56.5% | – | – |
according to the US BTS · November 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 1 | – |
| February | – | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · November 2024 → May 2026
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 98.8% 328
- Cancelled 1.2% 4
Share of all recorded flights in the period, all legs. · Nov 30, 2024 → May 20, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL SFO Hartsfield Jackson Atlanta International Airport – San Francisco International Airport | 3,435 | 29.2 min | 56.1% | 332 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 1 | 1 | 0.0% | 0 |
| December 2024 | 1 | 1 | 0.0% | 0 |
| March 2025 | 4 | 4 | 25.0% | 0 |
| April 2025 | 8 | 8 | 50.0% | 0 |
| May 2025 | 27 | 27 | 51.9% | 0 |
| June 2025 | 30 | 29 | 44.8% | 1 |
| July 2025 | 31 | 31 | 58.1% | 0 |
| August 2025 | 27 | 27 | 48.2% | 0 |
| September 2025 | 21 | 21 | 52.4% | 0 |
| October 2025 | 21 | 21 | 61.9% | 0 |
| November 2025 | 24 | 24 | 66.7% | 0 |
| December 2025 | 23 | 23 | 56.5% | 0 |
| January 2026 | 17 | 16 | 56.3% | 1 |
| February 2026 | 16 | 16 | 68.8% | 0 |
| March 2026 | 31 | 29 | 55.2% | 2 |
| April 2026 | 30 | 30 | 70.0% | 0 |
| May 2026 | 20 | 20 | 55.0% | 0 |