AS1227
AS1227 (Alaska Airlines) is a multi-stop service on 2 routes, busiest San Jose to Seattle. Of 251 departures recorded from October 2024 to August 2025, 78.6% left on time, according to the US BTS.
- On-time departures78.6%of 251 flights
- Average delay6.0 min
- August 202519
- Cancelled1.2%
- Legs flown under this number2
Recorded departures by month
Short series — AS1227 has only 11 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
The most recent periods11 periods
| Period | Departures 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | 31 | – |
| February | – | 28 | – |
| March | – | 22 | – |
| April | – | 5 | – |
| May | – | 14 | – |
| June | – | 29 | – |
| July | – | 31 | – |
| August | – | 19 | – |
| September | – | – | – |
| October | 19 | – | – |
| November | 25 | – | – |
| December | 28 | – | – |
according to the US BTS · October 2024 → August 2025
On-time departures by month
Short series — AS1227 has only 11 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods11 periods
| Period | On time 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | 90.3% | – |
| February | – | 85.2% | – |
| March | – | 90.9% | – |
| April | – | 80.0% | – |
| May | – | 69.2% | – |
| June | – | 58.6% | – |
| July | – | 67.7% | – |
| August | – | 68.4% | – |
| September | – | – | – |
| October | 100.0% | – | – |
| November | 80.0% | – | – |
| December | 78.6% | – | – |
according to the US BTS · October 2024 → August 2025
Average departure delay by month
Short series — AS1227 has only 11 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · October 2024 → August 2025
Cancelled departures by month
Short series — AS1227 has only 11 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods11 periods
| Period | Cancelled 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 1 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | 1 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | 0 | – |
| September | – | – | – |
| October | 1 | – | – |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → August 2025
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 98.8% 248
- Cancelled 1.2% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Aug 19, 2025
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 |
|---|---|---|---|---|
| SJC SEA Mineta San Jose International Airport – Seattle–Tacoma International Airport | 1,122 | 1.5 min | 83.8% | 182 |
| SEA AUS Seattle–Tacoma International Airport – Austin Bergstrom International Airport | 2,848 | 17.7 min | 65.2% | 69 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 18 | 100.0% | 1 |
| November 2024 | 25 | 25 | 80.0% | 0 |
| December 2024 | 28 | 28 | 78.6% | 0 |
| January 2025 | 31 | 31 | 90.3% | 0 |
| February 2025 | 28 | 27 | 85.2% | 1 |
| March 2025 | 22 | 22 | 90.9% | 0 |
| April 2025 | 5 | 5 | 80.0% | 0 |
| May 2025 | 14 | 13 | 69.2% | 1 |
| June 2025 | 29 | 29 | 58.6% | 0 |
| July 2025 | 31 | 31 | 67.7% | 0 |
| August 2025 | 19 | 19 | 68.4% | 0 |