AS563
AS563 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Kansas City to Seattle. Of 492 departures recorded from October 2024 to July 2026, 94.2% left on time, according to the US BTS.
- On-time departures94.2%of 492 flights
- Average delay0.6 min
- July 202631▲ 14.8%vs July 2025
- Cancelled1.2%
- 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 periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 6 | ▲ 20.0% |
| February | – | – | – |
| March | 11 | 11 | 0.0% |
| April | 26 | 30 | ▲ 15.4% |
| May | 29 | 31 | ▲ 6.9% |
| June | 27 | 30 | ▲ 11.1% |
| July | 27 | 31 | ▲ 14.8% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 27 | – | in progress |
| November | 30 | – | – |
| 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 83.3% | ▼ 16.7% |
| February | – | – | – |
| March | 90.9% | 100.0% | ▲ 10.0% |
| April | 100.0% | 86.2% | ▼ 13.8% |
| May | 92.9% | 93.6% | ▲ 0.7% |
| June | 92.3% | 93.3% | ▲ 1.1% |
| July | 100.0% | 83.9% | ▼ 16.1% |
| August | 96.6% | – | – |
| September | 100.0% | – | – |
| October | 92.3% | – | in progress |
| November | 100.0% | – | – |
| December | 86.7% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | – | – | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | 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 98.8% 486
- Cancelled 1.2% 6
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MCI SEA Kansas City International Airport – Seattle–Tacoma International Airport | 2,391 | 0.8 min | 94.3% | 464 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 31 | 31 | 96.8% | 0 |
| January 2025 | 5 | 4 | 100.0% | 1 |
| March 2025 | 11 | 11 | 90.9% | 0 |
| April 2025 | 26 | 26 | 100.0% | 0 |
| May 2025 | 29 | 28 | 92.9% | 1 |
| June 2025 | 27 | 26 | 92.3% | 1 |
| July 2025 | 27 | 27 | 100.0% | 0 |
| August 2025 | 29 | 29 | 96.6% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 27 | 26 | 92.3% | 1 |
| November 2025 | 30 | 30 | 100.0% | 0 |
| December 2025 | 31 | 30 | 86.7% | 1 |
| January 2026 | 6 | 6 | 83.3% | 0 |
| March 2026 | 11 | 11 | 100.0% | 0 |
| April 2026 | 30 | 29 | 86.2% | 1 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |