AS519
AS519 (Alaska Airlines) is a multi-stop service on 10 routes, busiest Fort Lauderdale to Seattle. Of 335 departures recorded from November 2024 to July 2026, 86.1% left on time, according to the US BTS.
- On-time departures86.1%of 335 flights
- Average delay6.2 min
- July 202631
- Cancelled1.5%
- Legs flown under this number10
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 11 | ▼ 60.7% |
| March | 29 | 2 | ▼ 93.1% |
| April | 27 | 1 | ▼ 96.3% |
| May | 31 | 19 | ▼ 38.7% |
| June | 11 | 30 | ▲ 172.7% |
| July | – | 31 | – |
| August | 1 | – | – |
| September | – | – | – |
| October | 3 | – | in progress |
| November | 10 | – | – |
| December | 15 | – | – |
according to the US BTS · November 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 87.1% | 79.3% | ▼ 8.9% |
| February | 96.3% | 81.8% | ▼ 15.0% |
| March | 96.4% | 50.0% | ▼ 48.1% |
| April | 88.9% | 100.0% | ▲ 12.5% |
| May | 93.6% | 79.0% | ▼ 15.6% |
| June | 63.6% | 86.7% | ▲ 36.2% |
| July | – | 93.6% | – |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 90.0% | – | – |
| December | 73.3% | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · November 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% 330
- Cancelled 1.5% 5
Share of all recorded flights in the period, all legs. · Nov 22, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| FLL SEA Fort Lauderdale Hollywood International Airport – Seattle–Tacoma International Airport | 4,368 | 5.7 min | 87.0% | 189 |
| SAT SEA San Antonio International Airport – Seattle–Tacoma International Airport | 2,854 | 8.5 min | 86.4% | 82 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 9 | 8 | 75.0% | 1 |
| December 2024 | 15 | 15 | 66.7% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 28 | 27 | 96.3% | 1 |
| March 2025 | 29 | 28 | 96.4% | 1 |
| April 2025 | 27 | 27 | 88.9% | 0 |
| May 2025 | 31 | 31 | 93.6% | 0 |
| June 2025 | 11 | 11 | 63.6% | 0 |
| August 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 3 | 3 | 100.0% | 0 |
| November 2025 | 10 | 10 | 90.0% | 0 |
| December 2025 | 15 | 15 | 73.3% | 0 |
| January 2026 | 31 | 29 | 79.3% | 2 |
| February 2026 | 11 | 11 | 81.8% | 0 |
| March 2026 | 2 | 2 | 50.0% | 0 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| May 2026 | 19 | 19 | 79.0% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 31 | 31 | 93.6% | 0 |