AS517
AS517 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Fort Lauderdale to Seattle. Of 608 departures recorded from October 2024 to July 2026, 75.5% left on time, according to the US BTS.
- On-time departures75.5%of 608 flights
- Average delay13.7 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number2
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 | 23 | 6 | ▼ 73.9% |
| February | 20 | 13 | ▼ 35.0% |
| March | 27 | 26 | ▼ 3.7% |
| April | 26 | 30 | ▲ 15.4% |
| May | 27 | 50 | ▲ 85.2% |
| June | 30 | 39 | ▲ 30.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 27 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 184 | 195 | ▲ 6.0% |
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 | 47.8% | 66.7% | ▲ 39.4% |
| February | 75.0% | 53.9% | ▼ 28.2% |
| March | 77.8% | 56.0% | ▼ 28.0% |
| April | 84.6% | 86.2% | ▲ 1.9% |
| May | 77.8% | 90.0% | ▲ 15.7% |
| June | 69.0% | 92.3% | ▲ 33.8% |
| July | 73.3% | 71.0% | ▼ 3.2% |
| August | 67.7% | – | – |
| September | 76.7% | – | – |
| October | 83.9% | – | in progress |
| November | 69.2% | – | – |
| December | 54.8% | – | – |
| Year-to-date average (Jan–Jul) | 72.2% | 73.7% | ▲ 2.1% |
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 | 1 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 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 99.2% 603
- Cancelled 0.8% 5
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 |
|---|---|---|---|---|
| FLL SEA Fort Lauderdale Hollywood International Airport – Seattle–Tacoma International Airport | 4,368 | 14.2 min | 75.0% | 580 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 29 | 29 | 82.8% | 0 |
| December 2024 | 30 | 30 | 73.3% | 0 |
| January 2025 | 23 | 23 | 47.8% | 0 |
| February 2025 | 20 | 20 | 75.0% | 0 |
| March 2025 | 27 | 27 | 77.8% | 0 |
| April 2025 | 26 | 26 | 84.6% | 0 |
| May 2025 | 27 | 27 | 77.8% | 0 |
| June 2025 | 30 | 29 | 69.0% | 1 |
| July 2025 | 31 | 30 | 73.3% | 1 |
| August 2025 | 31 | 31 | 67.7% | 0 |
| September 2025 | 30 | 30 | 76.7% | 0 |
| October 2025 | 31 | 31 | 83.9% | 0 |
| November 2025 | 27 | 26 | 69.2% | 1 |
| December 2025 | 31 | 31 | 54.8% | 0 |
| January 2026 | 6 | 6 | 66.7% | 0 |
| February 2026 | 13 | 13 | 53.9% | 0 |
| March 2026 | 26 | 25 | 56.0% | 1 |
| April 2026 | 30 | 29 | 86.2% | 1 |
| May 2026 | 50 | 50 | 90.0% | 0 |
| June 2026 | 39 | 39 | 92.3% | 0 |
| July 2026 | 31 | 31 | 71.0% | 0 |