AS331
AS331 (Alaska Airlines) is a multi-stop service on 13 routes, busiest Seattle to Burbank. Of 267 departures recorded from November 2024 to July 2026, 80.1% left on time, according to the US BTS.
- On-time departures80.1%of 267 flights
- Average delay7.5 min
- July 202631▲ 675.0%vs July 2025
- Cancelled0.4%
- Legs flown under this number13
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 | – | 6 | – |
| February | – | – | – |
| March | 13 | 13 | 0.0% |
| April | 21 | 17 | ▼ 19.0% |
| May | 17 | 57 | ▲ 235.3% |
| June | 14 | 39 | ▲ 178.6% |
| July | 4 | 31 | ▲ 675.0% |
| August | 5 | – | – |
| September | 1 | – | – |
| October | 1 | – | in progress |
| November | 9 | – | – |
| December | 18 | – | – |
according to the US BTS · November 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 | – | 83.3% | – |
| February | – | – | – |
| March | 69.2% | 100.0% | ▲ 44.4% |
| April | 81.0% | 70.6% | ▼ 12.8% |
| May | 94.1% | 79.0% | ▼ 16.1% |
| June | 78.6% | 82.1% | ▲ 4.4% |
| July | 100.0% | 63.3% | ▼ 36.7% |
| August | 100.0% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 100.0% | – | – |
| December | 72.2% | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 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 | – |
| February | – | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · November 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 99.6% 266
- Cancelled 0.4% 1
Share of all recorded flights in the period, all legs. · Nov 21, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA BUR Seattle–Tacoma International Airport – Hollywood Burbank/Bob Hope Airport | 1,509 | 16.0 min | 68.6% | 52 |
| SEA ABQ Seattle–Tacoma International Airport – Albuquerque International Sunport | 1,897 | 9.3 min | 81.6% | 49 |
| ABQ SEA Albuquerque International Sunport – Seattle–Tacoma International Airport | 1,897 | 10.1 min | 75.0% | 40 |
| SEA OAK Seattle–Tacoma International Airport – Oakland San Francisco Bay Airport | 1,082 | 4.4 min | 76.5% | 34 |
| LAX BOI Los Angeles International Airport – Boise Air Terminal/Gowen Field | 1,086 | 5.9 min | 83.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 1 | 1 | 100.0% | 0 |
| March 2025 | 13 | 13 | 69.2% | 0 |
| April 2025 | 21 | 21 | 81.0% | 0 |
| May 2025 | 17 | 17 | 94.1% | 0 |
| June 2025 | 14 | 14 | 78.6% | 0 |
| July 2025 | 4 | 4 | 100.0% | 0 |
| August 2025 | 5 | 5 | 100.0% | 0 |
| September 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 9 | 9 | 100.0% | 0 |
| December 2025 | 18 | 18 | 72.2% | 0 |
| January 2026 | 6 | 6 | 83.3% | 0 |
| March 2026 | 13 | 13 | 100.0% | 0 |
| April 2026 | 17 | 17 | 70.6% | 0 |
| May 2026 | 57 | 57 | 79.0% | 0 |
| June 2026 | 39 | 39 | 82.1% | 0 |
| July 2026 | 31 | 30 | 63.3% | 1 |