AS400
AS400 (Alaska Airlines) is a multi-stop service on 11 routes, busiest Seattle to Nashville. Of 470 departures recorded from October 2024 to July 2026, 81.8% left on time, according to the US BTS.
- On-time departures81.8%of 470 flights
- Average delay8.1 min
- July 202660▲ 100.0%vs July 2025
- Cancelled0.9%
- Legs flown under this number11
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 1 | ▼ 66.7% |
| February | – | 18 | – |
| March | 14 | 31 | ▲ 121.4% |
| April | 30 | 21 | ▼ 30.0% |
| May | 30 | 19 | ▼ 36.7% |
| June | 30 | 51 | ▲ 70.0% |
| July | 30 | 60 | ▲ 100.0% |
| August | 24 | – | – |
| September | 12 | – | – |
| October | 29 | – | in progress |
| November | 20 | – | – |
| December | 16 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 66.7% | 0.0% | ▼ 100.0% |
| February | – | 77.8% | – |
| March | 100.0% | 66.7% | ▼ 33.3% |
| April | 93.3% | 90.0% | ▼ 3.6% |
| May | 80.0% | 94.7% | ▲ 18.4% |
| June | 73.3% | 86.3% | ▲ 17.6% |
| July | 80.0% | 68.3% | ▼ 14.6% |
| August | 65.2% | – | – |
| September | 100.0% | – | – |
| October | 78.6% | – | in progress |
| November | 100.0% | – | – |
| December | 93.8% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
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 99.1% 466
- Cancelled 0.9% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA BNA Seattle–Tacoma International Airport – Nashville International Airport | 3,176 | 8.2 min | 81.3% | 141 |
| SAT SEA San Antonio International Airport – Seattle–Tacoma International Airport | 2,854 | 1.9 min | 89.4% | 104 |
| SEA SBA Seattle–Tacoma International Airport – Santa Barbara Municipal Airport | 1,463 | 12.4 min | 76.5% | 51 |
| SBA SEA Santa Barbara Municipal Airport – Seattle–Tacoma International Airport | 1,463 | 12.3 min | 76.5% | 51 |
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 5.8 min | 79.4% | 35 |
| FAI ANC Fairbanks International Airport – Ted Stevens Anchorage International Airport | 418 | 23.0 min | 72.7% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 11 | 11 | 100.0% | 0 |
| November 2024 | 6 | 6 | 83.3% | 0 |
| December 2024 | 14 | 14 | 85.7% | 0 |
| January 2025 | 3 | 3 | 66.7% | 0 |
| March 2025 | 14 | 14 | 100.0% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 30 | 30 | 80.0% | 0 |
| June 2025 | 30 | 30 | 73.3% | 0 |
| July 2025 | 30 | 30 | 80.0% | 0 |
| August 2025 | 24 | 23 | 65.2% | 1 |
| September 2025 | 12 | 12 | 100.0% | 0 |
| October 2025 | 29 | 28 | 78.6% | 1 |
| November 2025 | 20 | 20 | 100.0% | 0 |
| December 2025 | 16 | 16 | 93.8% | 0 |
| January 2026 | 1 | 1 | 0.0% | 0 |
| February 2026 | 18 | 18 | 77.8% | 0 |
| March 2026 | 31 | 30 | 66.7% | 1 |
| April 2026 | 21 | 20 | 90.0% | 1 |
| May 2026 | 19 | 19 | 94.7% | 0 |
| June 2026 | 51 | 51 | 86.3% | 0 |
| July 2026 | 60 | 60 | 68.3% | 0 |