AS1156
AS1156 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Seattle to San Diego. Of 508 departures recorded from October 2024 to July 2026, 73.8% left on time, according to the US BTS.
- On-time departures73.8%of 508 flights
- Average delay10.0 min
- July 202631▲ 3.3%vs July 2025
- Cancelled1.8%
- Legs flown under this number2
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 | 9 | 31 | ▲ 244.4% |
| February | 14 | 28 | ▲ 100.0% |
| March | 21 | 31 | ▲ 47.6% |
| April | 27 | 29 | ▲ 7.4% |
| May | 31 | 31 | 0.0% |
| June | 30 | 10 | ▼ 66.7% |
| July | 30 | 31 | ▲ 3.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 25 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 162 | 191 | ▲ 17.9% |
according to the US BTS · October 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 | 87.5% | 63.3% | ▼ 27.6% |
| February | 50.0% | 53.6% | ▲ 7.1% |
| March | 76.2% | 75.9% | ▼ 0.4% |
| April | 77.8% | 86.2% | ▲ 10.8% |
| May | 80.7% | 87.1% | ▲ 8.0% |
| June | 60.0% | 90.0% | ▲ 50.0% |
| July | 69.0% | 71.0% | ▲ 2.9% |
| August | 74.2% | – | – |
| September | 75.9% | – | – |
| October | 79.2% | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jul) | 71.6% | 75.3% | ▲ 5.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 1 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
according to the US BTS · October 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 98.2% 499
- Cancelled 1.8% 9
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| SEA SAN Seattle–Tacoma International Airport – San Diego International Airport | 1,692 | 9.4 min | 73.6% | 317 |
| HNL OGG Daniel K. Inouye International Airport – Kahului International Airport | 162 | 10.9 min | 73.9% | 191 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 82.4% | 0 |
| November 2024 | 24 | 24 | 62.5% | 0 |
| December 2024 | 28 | 26 | 84.6% | 2 |
| January 2025 | 9 | 8 | 87.5% | 1 |
| February 2025 | 14 | 14 | 50.0% | 0 |
| March 2025 | 21 | 21 | 76.2% | 0 |
| April 2025 | 27 | 27 | 77.8% | 0 |
| May 2025 | 31 | 31 | 80.7% | 0 |
| June 2025 | 30 | 30 | 60.0% | 0 |
| July 2025 | 30 | 29 | 69.0% | 1 |
| August 2025 | 31 | 31 | 74.2% | 0 |
| September 2025 | 30 | 29 | 75.9% | 1 |
| October 2025 | 25 | 24 | 79.2% | 1 |
| January 2026 | 31 | 30 | 63.3% | 1 |
| February 2026 | 28 | 28 | 53.6% | 0 |
| March 2026 | 31 | 29 | 75.9% | 2 |
| April 2026 | 29 | 29 | 86.2% | 0 |
| May 2026 | 31 | 31 | 87.1% | 0 |
| June 2026 | 10 | 10 | 90.0% | 0 |
| July 2026 | 31 | 31 | 71.0% | 0 |