AS339
AS339 (Alaska Airlines) is a multi-stop service on 3 routes, busiest Austin to Seattle. Of 593 departures recorded from October 2024 to July 2026, 75.9% left on time, according to the US BTS.
- On-time departures75.9%of 593 flights
- Average delay10.7 min
- July 202631▲ 3.3%vs July 2025
- Cancelled0.8%
- Legs flown under this number3
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 | 31 | 20 | ▼ 35.5% |
| February | 28 | 23 | ▼ 17.9% |
| March | 30 | 26 | ▼ 13.3% |
| April | 30 | 24 | ▼ 20.0% |
| May | 31 | 30 | ▼ 3.2% |
| June | 30 | 30 | 0.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 27 | – | – |
| September | 21 | – | – |
| October | 23 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 210 | 184 | ▼ 12.4% |
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 | 83.9% | 60.0% | ▼ 28.5% |
| February | 73.1% | 91.3% | ▲ 24.9% |
| March | 83.3% | 73.1% | ▼ 12.3% |
| April | 93.3% | 83.3% | ▼ 10.7% |
| May | 83.9% | 86.2% | ▲ 2.8% |
| June | 43.3% | 100.0% | ▲ 130.8% |
| July | 44.8% | 58.1% | ▲ 29.5% |
| August | 66.7% | – | – |
| September | 90.5% | – | – |
| October | 86.4% | – | in progress |
| November | 72.4% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–Jul) | 72.2% | 78.9% | ▲ 9.2% |
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 | 2 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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 99.2% 588
- Cancelled 0.8% 5
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| AUS SEA Austin Bergstrom International Airport – Seattle–Tacoma International Airport | 2,848 | 13.4 min | 73.3% | 370 |
| SEA LAS Seattle–Tacoma International Airport – Harry Reid International Airport | 1,395 | 7.3 min | 77.8% | 196 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 70.6% | 0 |
| November 2024 | 20 | 20 | 85.0% | 0 |
| December 2024 | 31 | 31 | 77.4% | 0 |
| January 2025 | 31 | 31 | 83.9% | 0 |
| February 2025 | 28 | 26 | 73.1% | 2 |
| March 2025 | 30 | 30 | 83.3% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 30 | 30 | 43.3% | 0 |
| July 2025 | 30 | 29 | 44.8% | 1 |
| August 2025 | 27 | 27 | 66.7% | 0 |
| September 2025 | 21 | 21 | 90.5% | 0 |
| October 2025 | 23 | 22 | 86.4% | 1 |
| November 2025 | 29 | 29 | 72.4% | 0 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 20 | 20 | 60.0% | 0 |
| February 2026 | 23 | 23 | 91.3% | 0 |
| March 2026 | 26 | 26 | 73.1% | 0 |
| April 2026 | 24 | 24 | 83.3% | 0 |
| May 2026 | 30 | 29 | 86.2% | 1 |
| June 2026 | 30 | 30 | 100.0% | 0 |
| July 2026 | 31 | 31 | 58.1% | 0 |