AS317
AS317 (Alaska Airlines) is a multi-stop service on 6 routes, busiest Dallas-Fort Worth to Seattle. Of 503 departures recorded from November 2024 to July 2026, 70.3% left on time, according to the US BTS.
- On-time departures70.3%of 503 flights
- Average delay16.8 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.0%
- Legs flown under this number6
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 | 4 | 27 | ▲ 575.0% |
| February | – | 24 | – |
| March | 13 | 29 | ▲ 123.1% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 29 | 30 | ▲ 3.4% |
| July | 31 | 31 | 0.0% |
| August | 29 | – | – |
| September | 26 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 29 | – | – |
according to the US BTS · November 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 | 100.0% | 65.4% | ▼ 34.6% |
| February | – | 75.0% | – |
| March | 53.9% | 71.4% | ▲ 32.6% |
| April | 53.3% | 90.0% | ▲ 68.8% |
| May | 67.7% | 58.1% | ▼ 14.3% |
| June | 51.7% | 86.2% | ▲ 66.7% |
| July | 58.1% | 86.7% | ▲ 49.3% |
| August | 44.8% | – | – |
| September | 76.9% | – | – |
| October | 86.7% | – | in progress |
| November | 82.8% | – | – |
| December | 65.5% | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 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 | 1 | – |
| February | – | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · November 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 99.0% 498
- Cancelled 1.0% 5
Share of all recorded flights in the period, all legs. · Nov 23, 2024 → Jul 31, 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 |
|---|---|---|---|---|
| DFW SEA Dallas Fort Worth International Airport – Seattle–Tacoma International Airport | 2,668 | 22.4 min | 63.9% | 338 |
| DEN SEA Denver International Airport – Seattle–Tacoma International Airport | 1,645 | 3.4 min | 88.0% | 52 |
| SEA RDM Seattle–Tacoma International Airport – Roberts Field | 366 | 6.4 min | 85.7% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 7 | 7 | 85.7% | 0 |
| December 2024 | 12 | 12 | 83.3% | 0 |
| January 2025 | 4 | 4 | 100.0% | 0 |
| March 2025 | 13 | 13 | 53.9% | 0 |
| April 2025 | 30 | 30 | 53.3% | 0 |
| May 2025 | 31 | 31 | 67.7% | 0 |
| June 2025 | 29 | 29 | 51.7% | 0 |
| July 2025 | 31 | 31 | 58.1% | 0 |
| August 2025 | 29 | 29 | 44.8% | 0 |
| September 2025 | 26 | 26 | 76.9% | 0 |
| October 2025 | 31 | 30 | 86.7% | 1 |
| November 2025 | 29 | 29 | 82.8% | 0 |
| December 2025 | 29 | 29 | 65.5% | 0 |
| January 2026 | 27 | 26 | 65.4% | 1 |
| February 2026 | 24 | 24 | 75.0% | 0 |
| March 2026 | 29 | 28 | 71.4% | 1 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 31 | 31 | 58.1% | 0 |
| June 2026 | 30 | 29 | 86.2% | 1 |
| July 2026 | 31 | 30 | 86.7% | 1 |