AS257
AS257 (Alaska Airlines) is a multi-stop service on 7 routes, busiest San Jose to Kailua-Kona. Of 173 departures recorded from August 2025 to July 2026, 96.0% left on time, according to the US BTS.
- On-time departures96.0%of 173 flights
- Average delay-4.6 min
- July 20269
- Cancelled0.0%
- Legs flown under this number7
Recorded departures by month
Short series — AS257 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.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 27 | – |
| February | – | 21 | – |
| March | – | 16 | – |
| April | – | 17 | – |
| May | – | 29 | – |
| June | – | 15 | – |
| July | – | 9 | – |
| August | 1 | – | – |
| September | – | – | – |
| October | 3 | – | in progress |
| November | 12 | – | – |
| December | 23 | – | – |
according to the US BTS · August 2025 → July 2026
On-time departures by month
Short series — AS257 has only 11 months so far. Enough to show the level now, not enough to read a trend.
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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 96.3% | – |
| February | – | 95.2% | – |
| March | – | 100.0% | – |
| April | – | 94.1% | – |
| May | – | 96.6% | – |
| June | – | 100.0% | – |
| July | – | 88.9% | – |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 91.7% | – | – |
| December | 95.7% | – | – |
according to the US BTS · August 2025 → July 2026
Average departure delay by month
Short series — AS257 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · August 2025 → July 2026
Cancelled departures by month
Short series — AS257 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · August 2025 → 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 100.0% 173
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Aug 20, 2025 → Jul 29, 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 |
|---|---|---|---|---|
| SJC KOA Mineta San Jose International Airport – Ellison Onizuka Kona International Airport at Keāhole | 3,834 | -2.8 min | 95.6% | 68 |
| ANC FAI Ted Stevens Anchorage International Airport – Fairbanks International Airport | 418 | -5.2 min | 97.2% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| August 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 3 | 3 | 100.0% | 0 |
| November 2025 | 12 | 12 | 91.7% | 0 |
| December 2025 | 23 | 23 | 95.7% | 0 |
| January 2026 | 27 | 27 | 96.3% | 0 |
| February 2026 | 21 | 21 | 95.2% | 0 |
| March 2026 | 16 | 16 | 100.0% | 0 |
| April 2026 | 17 | 17 | 94.1% | 0 |
| May 2026 | 29 | 29 | 96.6% | 0 |
| June 2026 | 15 | 15 | 100.0% | 0 |
| July 2026 | 9 | 9 | 88.9% | 0 |