AS455
AS455 (Alaska Airlines) is a multi-stop service on 4 routes, busiest Spokane to Seattle. Of 345 departures recorded from October 2024 to June 2026, 74.2% left on time, according to the US BTS.
- On-time departures74.2%of 345 flights
- Average delay9.6 min
- June 20269▼ 70.0%vs June 2025
- Cancelled1.2%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 31 | ▲ 1,450.0% |
| February | 4 | 28 | ▲ 600.0% |
| March | 10 | 27 | ▲ 170.0% |
| April | 11 | 19 | ▲ 72.7% |
| May | 27 | 24 | ▼ 11.1% |
| June | 30 | 9 | ▼ 70.0% |
| July | 30 | – | – |
| August | 18 | – | – |
| September | – | – | – |
| October | 5 | – | in progress |
| November | 23 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jun) | 84 | 138 | ▲ 64.3% |
according to the US BTS · October 2024 → June 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 58.1% | ▼ 41.9% |
| February | 50.0% | 85.7% | ▲ 71.4% |
| March | 80.0% | 65.4% | ▼ 18.3% |
| April | 81.8% | 89.5% | ▲ 9.3% |
| May | 81.5% | 86.4% | ▲ 6.0% |
| June | 43.3% | 88.9% | ▲ 105.1% |
| July | 69.0% | – | – |
| August | 72.2% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 87.0% | – | – |
| December | 67.9% | – | – |
| Year-to-date average (Jan–Jun) | 72.8% | 79.0% | ▲ 8.5% |
according to the US BTS · October 2024 → June 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → June 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 0 | – |
| July | 1 | – | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jun) | 0 | 3 |
according to the US BTS · October 2024 → June 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 98.8% 341
- Cancelled 1.2% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jun 9, 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 |
|---|---|---|---|---|
| GEG SEA Spokane International Airport – Seattle–Tacoma International Airport | 359 | 9.0 min | 75.9% | 169 |
| SFO IAD San Francisco International Airport – Washington Dulles International Airport | 3,883 | 13.7 min | 67.0% | 110 |
| SMF SEA Sacramento International Airport – Seattle–Tacoma International Airport | 975 | -1.8 min | 90.0% | 40 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 15 | 15 | 100.0% | 0 |
| December 2024 | 4 | 4 | 50.0% | 0 |
| January 2025 | 2 | 2 | 100.0% | 0 |
| February 2025 | 4 | 4 | 50.0% | 0 |
| March 2025 | 10 | 10 | 80.0% | 0 |
| April 2025 | 11 | 11 | 81.8% | 0 |
| May 2025 | 27 | 27 | 81.5% | 0 |
| June 2025 | 30 | 30 | 43.3% | 0 |
| July 2025 | 30 | 29 | 69.0% | 1 |
| August 2025 | 18 | 18 | 72.2% | 0 |
| October 2025 | 5 | 5 | 100.0% | 0 |
| November 2025 | 23 | 23 | 87.0% | 0 |
| December 2025 | 28 | 28 | 67.9% | 0 |
| January 2026 | 31 | 31 | 58.1% | 0 |
| February 2026 | 28 | 28 | 85.7% | 0 |
| March 2026 | 27 | 26 | 65.4% | 1 |
| April 2026 | 19 | 19 | 89.5% | 0 |
| May 2026 | 24 | 22 | 86.4% | 2 |
| June 2026 | 9 | 9 | 88.9% | 0 |