AS1319
AS1319 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Boston to Portland. Of 423 departures recorded from October 2024 to July 2026, 81.7% left on time, according to the US BTS.
- On-time departures81.7%of 423 flights
- Average delay9.3 min
- July 202630▲ 0.0%vs July 2025
- Cancelled1.9%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 27 | ▲ 575.0% |
| February | – | 22 | – |
| March | – | 26 | – |
| April | – | 30 | – |
| May | – | 31 | – |
| June | 19 | 30 | ▲ 57.9% |
| July | 30 | 30 | 0.0% |
| August | 29 | – | – |
| September | 26 | – | – |
| October | 31 | – | in progress |
| November | 26 | – | – |
| December | 31 | – | – |
according to the US BTS · October 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 75.0% | 80.0% | ▲ 6.7% |
| February | – | 95.2% | – |
| March | – | 84.6% | – |
| April | – | 76.7% | – |
| May | – | 90.3% | – |
| June | 89.5% | 83.3% | ▼ 6.9% |
| July | 90.0% | 69.0% | ▼ 23.4% |
| August | 89.7% | – | – |
| September | 65.4% | – | – |
| October | 62.1% | – | in progress |
| November | 80.8% | – | – |
| December | 93.3% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | – | 1 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 2 | – | in progress |
| November | 0 | – | – |
| December | 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 98.1% 415
- Cancelled 1.9% 8
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| BOS PDX Boston Logan International Airport – Portland International Airport | 4,072 | 9.6 min | 81.9% | 388 |
| SFO SEA San Francisco International Airport – Seattle–Tacoma International Airport | 1,093 | 6.7 min | 79.4% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 91.7% | 0 |
| November 2024 | 8 | 7 | 85.7% | 1 |
| December 2024 | 11 | 11 | 63.6% | 0 |
| January 2025 | 4 | 4 | 75.0% | 0 |
| June 2025 | 19 | 19 | 89.5% | 0 |
| July 2025 | 30 | 30 | 90.0% | 0 |
| August 2025 | 29 | 29 | 89.7% | 0 |
| September 2025 | 26 | 26 | 65.4% | 0 |
| October 2025 | 31 | 29 | 62.1% | 2 |
| November 2025 | 26 | 26 | 80.8% | 0 |
| December 2025 | 31 | 30 | 93.3% | 1 |
| January 2026 | 27 | 25 | 80.0% | 2 |
| February 2026 | 22 | 21 | 95.2% | 1 |
| March 2026 | 26 | 26 | 84.6% | 0 |
| April 2026 | 30 | 30 | 76.7% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 30 | 29 | 69.0% | 1 |