AS1131
AS1131 (Alaska Airlines) is a multi-stop service on 5 routes, busiest Seattle to San Diego. Of 334 departures recorded from October 2024 to June 2026, 68.0% left on time, according to the US BTS.
- On-time departures68.0%of 334 flights
- Average delay17.3 min
- June 20269▼ 52.6%vs June 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 periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 6 | ▼ 80.6% |
| February | 28 | – | – |
| March | 20 | 14 | ▼ 30.0% |
| April | 3 | 21 | ▲ 600.0% |
| May | – | 19 | – |
| June | 19 | 9 | ▼ 52.6% |
| July | 30 | – | – |
| August | 26 | – | – |
| September | 17 | – | – |
| October | 17 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → June 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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 93.3% | 33.3% | ▼ 64.3% |
| February | 59.3% | – | – |
| March | 75.0% | 61.5% | ▼ 17.9% |
| April | 100.0% | 66.7% | ▼ 33.3% |
| May | – | 89.5% | – |
| June | 52.6% | 88.9% | ▲ 68.9% |
| July | 32.1% | – | – |
| August | 57.7% | – | – |
| September | 64.7% | – | – |
| October | 58.8% | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → June 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → June 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 1 | – | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 2 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → June 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% 328
- Cancelled 1.8% 6
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jun 9, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA SAN Seattle–Tacoma International Airport – San Diego International Airport | 1,692 | 7.7 min | 77.0% | 151 |
| DEN PDX Denver International Airport – Portland International Airport | 1,592 | 33.9 min | 51.4% | 109 |
| ITO HNL Hilo International Airport – Daniel K. Inouye International Airport | 349 | 16.0 min | 60.0% | 41 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 79.0% | 0 |
| November 2024 | 25 | 25 | 80.0% | 0 |
| December 2024 | 30 | 29 | 75.9% | 1 |
| January 2025 | 31 | 30 | 93.3% | 1 |
| February 2025 | 28 | 27 | 59.3% | 1 |
| March 2025 | 20 | 20 | 75.0% | 0 |
| April 2025 | 3 | 3 | 100.0% | 0 |
| June 2025 | 19 | 19 | 52.6% | 0 |
| July 2025 | 30 | 28 | 32.1% | 2 |
| August 2025 | 26 | 26 | 57.7% | 0 |
| September 2025 | 17 | 17 | 64.7% | 0 |
| October 2025 | 17 | 17 | 58.8% | 0 |
| January 2026 | 6 | 6 | 33.3% | 0 |
| March 2026 | 14 | 13 | 61.5% | 1 |
| April 2026 | 21 | 21 | 66.7% | 0 |
| May 2026 | 19 | 19 | 89.5% | 0 |
| June 2026 | 9 | 9 | 88.9% | 0 |