AS505
AS505 (Alaska Airlines) is a multi-stop service on 3 routes, busiest Seattle to Los Angeles. Of 597 departures recorded from October 2024 to July 2026, 85.4% left on time, according to the US BTS.
- On-time departures85.4%of 597 flights
- Average delay4.4 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.2%
- Legs flown under this number3
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 19 | 31 | ▲ 63.2% |
| April | 12 | 27 | ▲ 125.0% |
| May | 31 | 27 | ▼ 12.9% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 28 | – | in progress |
| November | 18 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 182 | 205 | ▲ 12.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 87.1% | 74.2% | ▼ 14.8% |
| February | 89.3% | 85.7% | ▼ 4.0% |
| March | 100.0% | 73.3% | ▼ 26.7% |
| April | 100.0% | 81.5% | ▼ 18.5% |
| May | 87.1% | 88.9% | ▲ 2.1% |
| June | 73.3% | 100.0% | ▲ 36.4% |
| July | 80.7% | 87.1% | ▲ 8.0% |
| August | 79.3% | – | – |
| September | 86.7% | – | – |
| October | 85.7% | – | in progress |
| November | 94.4% | – | – |
| December | 81.5% | – | – |
| Year-to-date average (Jan–Jul) | 88.2% | 84.4% | ▼ 4.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
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 99.8% 596
- Cancelled 0.2% 1
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 |
|---|---|---|---|---|
| SEA LAX Seattle–Tacoma International Airport – Los Angeles International Airport | 1,537 | 5.4 min | 83.6% | 410 |
| AUS SEA Austin Bergstrom International Airport – Seattle–Tacoma International Airport | 2,848 | 2.5 min | 89.3% | 159 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 28 | 28 | 89.3% | 0 |
| December 2024 | 30 | 30 | 90.0% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 28 | 28 | 89.3% | 0 |
| March 2025 | 19 | 19 | 100.0% | 0 |
| April 2025 | 12 | 12 | 100.0% | 0 |
| May 2025 | 31 | 31 | 87.1% | 0 |
| June 2025 | 30 | 30 | 73.3% | 0 |
| July 2025 | 31 | 31 | 80.7% | 0 |
| August 2025 | 29 | 29 | 79.3% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 28 | 28 | 85.7% | 0 |
| November 2025 | 18 | 18 | 94.4% | 0 |
| December 2025 | 27 | 27 | 81.5% | 0 |
| January 2026 | 31 | 31 | 74.2% | 0 |
| February 2026 | 28 | 28 | 85.7% | 0 |
| March 2026 | 31 | 30 | 73.3% | 1 |
| April 2026 | 27 | 27 | 81.5% | 0 |
| May 2026 | 27 | 27 | 88.9% | 0 |
| June 2026 | 30 | 30 | 100.0% | 0 |
| July 2026 | 31 | 31 | 87.1% | 0 |