AS550
AS550 (Alaska Airlines) is a multi-stop service on 5 routes, busiest Dallas-Fort Worth to Seattle. Of 354 departures recorded from May 2025 to July 2026, 64.5% left on time, according to the US BTS.
- On-time departures64.5%of 354 flights
- Average delay17.1 min
- July 202630▲ 15.4%vs July 2025
- Cancelled0.6%
- Legs flown under this number5
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 5 | – |
| February | – | 18 | – |
| March | – | 28 | – |
| April | – | 30 | – |
| May | 17 | 30 | ▲ 76.5% |
| June | 27 | 30 | ▲ 11.1% |
| July | 26 | 30 | ▲ 15.4% |
| August | 23 | – | – |
| September | 17 | – | – |
| October | 29 | – | in progress |
| November | 20 | – | – |
| December | 24 | – | – |
according to the US BTS · May 2025 → 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 20.0% | – |
| February | – | 94.4% | – |
| March | – | 92.9% | – |
| April | – | 76.7% | – |
| May | 52.9% | 80.0% | ▲ 51.1% |
| June | 40.7% | 66.7% | ▲ 63.6% |
| July | 23.1% | 60.0% | ▲ 160.0% |
| August | 43.5% | – | – |
| September | 75.0% | – | – |
| October | 60.7% | – | in progress |
| November | 90.0% | – | – |
| December | 62.5% | – | – |
according to the US BTS · May 2025 → July 2026
Average departure delay by month
according to the US BTS · May 2025 → July 2026
Cancelled departures by month
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · May 2025 → 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 99.4% 352
- Cancelled 0.6% 2
Share of all recorded flights in the period, all legs. · May 15, 2025 → 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 |
|---|---|---|---|---|
| DFW SEA Dallas Fort Worth International Airport – Seattle–Tacoma International Airport | 2,668 | 22.1 min | 60.3% | 246 |
| SEA BOI Seattle–Tacoma International Airport – Boise Air Terminal/Gowen Field | 641 | 7.2 min | 75.0% | 48 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| May 2025 | 17 | 17 | 52.9% | 0 |
| June 2025 | 27 | 27 | 40.7% | 0 |
| July 2025 | 26 | 26 | 23.1% | 0 |
| August 2025 | 23 | 23 | 43.5% | 0 |
| September 2025 | 17 | 16 | 75.0% | 1 |
| October 2025 | 29 | 28 | 60.7% | 1 |
| November 2025 | 20 | 20 | 90.0% | 0 |
| December 2025 | 24 | 24 | 62.5% | 0 |
| January 2026 | 5 | 5 | 20.0% | 0 |
| February 2026 | 18 | 18 | 94.4% | 0 |
| March 2026 | 28 | 28 | 92.9% | 0 |
| April 2026 | 30 | 30 | 76.7% | 0 |
| May 2026 | 30 | 30 | 80.0% | 0 |
| June 2026 | 30 | 30 | 66.7% | 0 |
| July 2026 | 30 | 30 | 60.0% | 0 |