AS318
AS318 (Alaska Airlines) is a multi-stop service on 4 routes, busiest Seattle to Austin. Of 419 departures recorded from October 2024 to July 2026, 79.9% left on time, according to the US BTS.
- On-time departures79.9%of 419 flights
- Average delay7.1 min
- July 20264▲ 0.0%vs July 2025
- Cancelled0.2%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | 30 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 18 | 31 | ▲ 72.2% |
| April | 9 | 30 | ▲ 233.3% |
| May | 31 | 12 | ▼ 61.3% |
| June | 14 | 4 | ▼ 71.4% |
| July | 4 | 4 | 0.0% |
| August | 5 | – | – |
| September | 1 | – | – |
| October | 6 | – | in progress |
| November | 26 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 134 | 139 | ▲ 3.7% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 76.7% | 70.0% | ▼ 8.7% |
| February | 100.0% | 89.3% | ▼ 10.7% |
| March | 100.0% | 58.1% | ▼ 41.9% |
| April | 66.7% | 73.3% | ▲ 10.0% |
| May | 80.7% | 83.3% | ▲ 3.3% |
| June | 85.7% | 50.0% | ▼ 41.7% |
| July | 100.0% | 25.0% | ▼ 75.0% |
| August | 100.0% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 68.0% | – | – |
| December | 64.3% | – | – |
| Year-to-date average (Jan–Jul) | 87.1% | 64.1% | ▼ 26.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 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 99.8% 418
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 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 AUS Seattle–Tacoma International Airport – Austin Bergstrom International Airport | 2,848 | 4.7 min | 87.4% | 207 |
| SEA BOI Seattle–Tacoma International Airport – Boise Air Terminal/Gowen Field | 641 | 9.9 min | 72.1% | 191 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 29 | 29 | 96.6% | 0 |
| December 2024 | 31 | 31 | 80.7% | 0 |
| January 2025 | 30 | 30 | 76.7% | 0 |
| February 2025 | 28 | 28 | 100.0% | 0 |
| March 2025 | 18 | 18 | 100.0% | 0 |
| April 2025 | 9 | 9 | 66.7% | 0 |
| May 2025 | 31 | 31 | 80.7% | 0 |
| June 2025 | 14 | 14 | 85.7% | 0 |
| July 2025 | 4 | 4 | 100.0% | 0 |
| August 2025 | 5 | 5 | 100.0% | 0 |
| September 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 6 | 6 | 100.0% | 0 |
| November 2025 | 26 | 25 | 68.0% | 1 |
| December 2025 | 28 | 28 | 64.3% | 0 |
| January 2026 | 30 | 30 | 70.0% | 0 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 31 | 58.1% | 0 |
| April 2026 | 30 | 30 | 73.3% | 0 |
| May 2026 | 12 | 12 | 83.3% | 0 |
| June 2026 | 4 | 4 | 50.0% | 0 |
| July 2026 | 4 | 4 | 25.0% | 0 |