AS1109
AS1109 (Alaska Airlines) is a multi-stop service on 5 routes, busiest Los Angeles to Seattle. Of 224 departures recorded from October 2024 to May 2026, 91.4% left on time, according to the US BTS.
- On-time departures91.4%of 224 flights
- Average delay1.9 min
- May 20261▼ 94.1%vs May 2025
- Cancelled1.8%
- Legs flown under this number5
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 20 | – | – |
| February | 14 | – | – |
| March | 5 | 1 | ▼ 80.0% |
| April | – | – | – |
| May | 17 | 1 | ▼ 94.1% |
| June | 27 | – | – |
| July | 27 | – | – |
| August | 26 | – | – |
| September | 26 | – | – |
| October | 18 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | – | – |
| February | 92.9% | – | – |
| March | 100.0% | 100.0% | 0.0% |
| April | – | – | – |
| May | 70.6% | 100.0% | ▲ 41.7% |
| June | 84.6% | – | – |
| July | 92.6% | – | – |
| August | 92.0% | – | – |
| September | 84.0% | – | – |
| October | 100.0% | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | 0 | – | – |
| March | 1 | 0 | ▼ 100.0% |
| April | – | – | – |
| May | 0 | 0 | – |
| June | 1 | – | – |
| July | 0 | – | – |
| August | 1 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → May 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 98.2% 220
- Cancelled 1.8% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 13, 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 |
|---|---|---|---|---|
| LAX SEA Los Angeles International Airport – Seattle–Tacoma International Airport | 1,537 | 3.5 min | 92.4% | 121 |
| SEA SAN Seattle–Tacoma International Airport – San Diego International Airport | 1,692 | 0.1 min | 89.6% | 98 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 8 | 8 | 100.0% | 0 |
| November 2024 | 18 | 18 | 100.0% | 0 |
| December 2024 | 16 | 16 | 93.8% | 0 |
| January 2025 | 20 | 20 | 100.0% | 0 |
| February 2025 | 14 | 14 | 92.9% | 0 |
| March 2025 | 5 | 4 | 100.0% | 1 |
| May 2025 | 17 | 17 | 70.6% | 0 |
| June 2025 | 27 | 26 | 84.6% | 1 |
| July 2025 | 27 | 27 | 92.6% | 0 |
| August 2025 | 26 | 25 | 92.0% | 1 |
| September 2025 | 26 | 25 | 84.0% | 1 |
| October 2025 | 18 | 18 | 100.0% | 0 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| May 2026 | 1 | 1 | 100.0% | 0 |