AS444
AS444 (Alaska Airlines) is a multi-stop service on 6 routes, busiest Seattle to Philadelphia. Of 278 departures recorded from October 2024 to July 2026, 79.2% left on time, according to the US BTS.
- On-time departures79.2%of 278 flights
- Average delay10.5 min
- July 202631▲ 3.3%vs July 2025
- Cancelled1.4%
- Legs flown under this number6
Recorded departures by month
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 | 1 | – | – |
| February | – | – | – |
| March | 14 | – | – |
| April | 30 | – | – |
| May | 31 | – | – |
| June | 30 | 21 | ▼ 30.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 24 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | – | – |
| February | – | – | – |
| March | 64.3% | – | – |
| April | 76.7% | – | – |
| May | 58.1% | – | – |
| June | 73.3% | 100.0% | ▲ 36.4% |
| July | 64.3% | 96.8% | ▲ 50.5% |
| August | 74.2% | – | – |
| September | 90.0% | – | – |
| October | 91.3% | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | – | – | – |
| March | 0 | – | – |
| April | 0 | – | – |
| May | 0 | – | – |
| June | 0 | 1 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 98.6% 274
- Cancelled 1.4% 4
Share of all recorded flights in the period, all legs. · Oct 26, 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 |
|---|---|---|---|---|
| SEA PHL Seattle–Tacoma International Airport – Philadelphia International Airport | 3,818 | 13.8 min | 74.1% | 219 |
| BUR SEA Hollywood Burbank/Bob Hope Airport – Seattle–Tacoma International Airport | 1,509 | -1.8 min | 98.0% | 52 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 1 | 1 | 100.0% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 1 | 1 | 100.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| March 2025 | 14 | 14 | 64.3% | 0 |
| April 2025 | 30 | 30 | 76.7% | 0 |
| May 2025 | 31 | 31 | 58.1% | 0 |
| June 2025 | 30 | 30 | 73.3% | 0 |
| July 2025 | 30 | 28 | 64.3% | 2 |
| August 2025 | 31 | 31 | 74.2% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 24 | 23 | 91.3% | 1 |
| June 2026 | 21 | 20 | 100.0% | 1 |
| July 2026 | 31 | 31 | 96.8% | 0 |