AS539
AS539 (Alaska Airlines) is a multi-stop service on 10 routes, busiest Portland to Dallas-Fort Worth. Of 247 departures recorded from October 2024 to July 2026, 82.5% left on time, according to the US BTS.
- On-time departures82.5%of 247 flights
- Average delay6.3 min
- July 202631
- Cancelled0.8%
- Legs flown under this number10
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 5 | ▲ 400.0% |
| February | – | – | – |
| March | 22 | 1 | ▼ 95.5% |
| April | 36 | 1 | ▼ 97.2% |
| May | 17 | 19 | ▲ 11.8% |
| June | 11 | 30 | ▲ 172.7% |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | 25 | – | in progress |
| November | 21 | – | – |
| December | 22 | – | – |
according to the US BTS · October 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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 0.0% | 100.0% | – |
| February | – | – | – |
| March | 63.6% | 100.0% | ▲ 57.1% |
| April | 85.7% | 100.0% | ▲ 16.7% |
| May | 88.2% | 89.5% | ▲ 1.4% |
| June | 81.8% | 70.0% | ▼ 14.4% |
| July | – | 80.7% | – |
| August | – | – | – |
| September | – | – | – |
| October | 87.5% | – | in progress |
| November | 100.0% | – | – |
| December | 90.9% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | – | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 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% 245
- Cancelled 0.8% 2
Share of all recorded flights in the period, all legs. · Oct 26, 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 |
|---|---|---|---|---|
| SEA SJC Seattle–Tacoma International Airport – Mineta San Jose International Airport | 1,122 | 9.9 min | 73.1% | 52 |
| PDX DFW Portland International Airport – Dallas Fort Worth International Airport | 2,597 | -2.8 min | 96.2% | 52 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 1 | 1 | 0.0% | 0 |
| December 2024 | 4 | 4 | 50.0% | 0 |
| January 2025 | 1 | 1 | 0.0% | 0 |
| March 2025 | 22 | 22 | 63.6% | 0 |
| April 2025 | 36 | 35 | 85.7% | 1 |
| May 2025 | 17 | 17 | 88.2% | 0 |
| June 2025 | 11 | 11 | 81.8% | 0 |
| October 2025 | 25 | 24 | 87.5% | 1 |
| November 2025 | 21 | 21 | 100.0% | 0 |
| December 2025 | 22 | 22 | 90.9% | 0 |
| January 2026 | 5 | 5 | 100.0% | 0 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| May 2026 | 19 | 19 | 89.5% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 31 | 31 | 80.7% | 0 |