AS1143
AS1143 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Portland to Los Angeles. Of 521 departures recorded from October 2024 to July 2026, 84.0% left on time, according to the US BTS.
- On-time departures84.0%of 521 flights
- Average delay7.9 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.7%
- 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 periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 20 | 31 | ▲ 55.0% |
| February | 22 | 28 | ▲ 27.3% |
| March | 29 | 31 | ▲ 6.9% |
| April | 26 | – | – |
| May | 29 | 19 | ▼ 34.5% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 25 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 90.0% | 71.0% | ▼ 21.1% |
| February | 85.7% | 81.5% | ▼ 4.9% |
| March | 93.1% | 83.9% | ▼ 9.9% |
| April | 84.0% | – | – |
| May | 89.3% | 83.3% | ▼ 6.7% |
| June | 66.7% | 83.3% | ▲ 25.0% |
| July | 77.4% | 83.9% | ▲ 8.3% |
| August | 77.4% | – | – |
| September | 90.0% | – | – |
| October | 95.8% | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 1 | 0.0% |
| March | 0 | 0 | – |
| April | 1 | – | – |
| May | 1 | 1 | 0.0% |
| June | 3 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 98.3% 512
- Cancelled 1.7% 9
Share of all recorded flights in the period, all legs. · Oct 12, 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 |
|---|---|---|---|---|
| PDX LAX Portland International Airport – Los Angeles International Airport | 1,343 | 7.0 min | 85.5% | 351 |
| HNL LIH Daniel K. Inouye International Airport – Lihue Airport | 163 | 9.6 min | 81.0% | 170 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 28 | 28 | 75.0% | 0 |
| January 2025 | 20 | 20 | 90.0% | 0 |
| February 2025 | 22 | 21 | 85.7% | 1 |
| March 2025 | 29 | 29 | 93.1% | 0 |
| April 2025 | 26 | 25 | 84.0% | 1 |
| May 2025 | 29 | 28 | 89.3% | 1 |
| June 2025 | 30 | 27 | 66.7% | 3 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 25 | 24 | 95.8% | 1 |
| January 2026 | 31 | 31 | 71.0% | 0 |
| February 2026 | 28 | 27 | 81.5% | 1 |
| March 2026 | 31 | 31 | 83.9% | 0 |
| May 2026 | 19 | 18 | 83.3% | 1 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |