AS509
AS509 (Alaska Airlines) is a multi-stop service on 10 routes, busiest Seattle to Albuquerque. Of 451 departures recorded from November 2024 to July 2026, 78.2% left on time, according to the US BTS.
- On-time departures78.2%of 451 flights
- Average delay9.6 min
- July 202631▲ 3.3%vs July 2025
- Cancelled1.6%
- 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 periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 11 | ▼ 64.5% |
| February | 28 | 19 | ▼ 32.1% |
| March | 31 | 21 | ▼ 32.3% |
| April | 32 | 14 | ▼ 56.3% |
| May | 39 | 29 | ▼ 25.6% |
| June | 29 | 30 | ▲ 3.4% |
| July | 30 | 31 | ▲ 3.3% |
| August | 19 | – | – |
| September | – | – | – |
| October | 21 | – | in progress |
| November | 4 | – | – |
| December | 9 | – | – |
| Year to date (Jan–Jul) | 220 | 155 | ▼ 29.5% |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.7% | 100.0% | ▲ 24.0% |
| February | 85.7% | 94.7% | ▲ 10.5% |
| March | 77.4% | 84.2% | ▲ 8.8% |
| April | 81.3% | 78.6% | ▼ 3.3% |
| May | 59.0% | 86.2% | ▲ 46.2% |
| June | 62.1% | 80.0% | ▲ 28.9% |
| July | 78.6% | 74.2% | ▼ 5.6% |
| August | 70.6% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 50.0% | – | – |
| December | 77.8% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 85.4% | ▲ 14.0% |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 2 | – | – |
| September | – | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 98.4% 444
- Cancelled 1.6% 7
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA ABQ Seattle–Tacoma International Airport – Albuquerque International Sunport | 1,897 | 6.8 min | 78.8% | 179 |
| SEA MSP Seattle–Tacoma International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 2,245 | 9.3 min | 77.5% | 80 |
| SEA SLC Seattle–Tacoma International Airport – Salt Lake City International Airport | 1,107 | 13.0 min | 68.8% | 68 |
| SEA RSW Seattle–Tacoma International Airport – Southwest Florida International Airport | 4,218 | 3.4 min | 82.4% | 34 |
| CVG SEA Cincinnati Northern Kentucky International Airport – Seattle–Tacoma International Airport | 3,154 | 27.6 min | 90.6% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 8 | 8 | 75.0% | 0 |
| December 2024 | 15 | 15 | 66.7% | 0 |
| January 2025 | 31 | 31 | 80.7% | 0 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 31 | 31 | 77.4% | 0 |
| April 2025 | 32 | 32 | 81.3% | 0 |
| May 2025 | 39 | 39 | 59.0% | 0 |
| June 2025 | 29 | 29 | 62.1% | 0 |
| July 2025 | 30 | 28 | 78.6% | 2 |
| August 2025 | 19 | 17 | 70.6% | 2 |
| October 2025 | 21 | 20 | 100.0% | 1 |
| November 2025 | 4 | 4 | 50.0% | 0 |
| December 2025 | 9 | 9 | 77.8% | 0 |
| January 2026 | 11 | 11 | 100.0% | 0 |
| February 2026 | 19 | 19 | 94.7% | 0 |
| March 2026 | 21 | 19 | 84.2% | 2 |
| April 2026 | 14 | 14 | 78.6% | 0 |
| May 2026 | 29 | 29 | 86.2% | 0 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 31 | 31 | 74.2% | 0 |