AS256
AS256 (Alaska Airlines) is a multi-stop service on 10 routes, busiest Boston to San Diego. Of 219 departures recorded from November 2024 to July 2026, 75.8% left on time, according to the US BTS.
- On-time departures75.8%of 219 flights
- Average delay17.7 min
- July 202631
- Cancelled3.7%
- Legs flown under this number10
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 13 | ▲ 160.0% |
| February | 5 | 12 | ▲ 140.0% |
| March | 5 | 9 | ▲ 80.0% |
| April | – | 12 | – |
| May | – | 30 | – |
| June | – | 30 | – |
| July | – | 31 | – |
| August | 1 | – | – |
| September | – | – | – |
| October | 18 | – | in progress |
| November | 4 | – | – |
| December | 13 | – | – |
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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 60.0% | 0.0% | ▼ 100.0% |
| February | 80.0% | 58.3% | ▼ 27.1% |
| March | 100.0% | 44.4% | ▼ 55.6% |
| April | – | 100.0% | – |
| May | – | 90.0% | – |
| June | – | 86.7% | – |
| July | – | 90.3% | – |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 77.8% | – | in progress |
| November | 50.0% | – | – |
| December | 77.8% | – | – |
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 periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 3 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 4 | – | – |
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 96.3% 211
- Cancelled 3.7% 8
Share of all recorded flights in the period, all legs. · Nov 22, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS SAN Boston Logan International Airport – San Diego International Airport | 4,156 | 27.2 min | 90.4% | 52 |
| KOA ANC Ellison Onizuka Kona International Airport at Keāhole – Ted Stevens Anchorage International Airport | 4,632 | 24.4 min | 45.2% | 49 |
| SEA LIH Seattle–Tacoma International Airport – Lihue Airport | 4,345 | 9.3 min | 81.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 8 | 7 | 71.4% | 1 |
| December 2024 | 23 | 23 | 65.2% | 0 |
| January 2025 | 5 | 5 | 60.0% | 0 |
| February 2025 | 5 | 5 | 80.0% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| August 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 18 | 18 | 77.8% | 0 |
| November 2025 | 4 | 4 | 50.0% | 0 |
| December 2025 | 13 | 9 | 77.8% | 4 |
| January 2026 | 13 | 10 | 0.0% | 3 |
| February 2026 | 12 | 12 | 58.3% | 0 |
| March 2026 | 9 | 9 | 44.4% | 0 |
| April 2026 | 12 | 12 | 100.0% | 0 |
| May 2026 | 30 | 30 | 90.0% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 31 | 31 | 90.3% | 0 |