AS939
AS939 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Seattle to San Diego. Of 117 departures recorded from June 2025 to March 2026, 73.0% left on time, according to the US BTS.
- On-time departures73.0%of 117 flights
- Average delay13.1 min
- March 20261
- Cancelled1.7%
- Legs flown under this number2
Recorded departures by month
Short series — AS939 has only 6 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods6 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 1 | – |
| April | – | – | – |
| May | – | – | – |
| June | 16 | – | – |
| July | 26 | – | – |
| August | 25 | – | – |
| September | 28 | – | – |
| October | 21 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · June 2025 → March 2026
On-time departures by month
Short series — AS939 has only 6 months so far. Enough to show the level now, not enough to read a trend.
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 periods6 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 100.0% | – |
| April | – | – | – |
| May | – | – | – |
| June | 81.3% | – | – |
| July | 84.6% | – | – |
| August | 64.0% | – | – |
| September | 74.1% | – | – |
| October | 60.0% | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · June 2025 → March 2026
Average departure delay by month
Short series — AS939 has only 6 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · June 2025 → March 2026
Cancelled departures by month
Short series — AS939 has only 6 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods6 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 1 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · June 2025 → March 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 98.3% 115
- Cancelled 1.7% 2
Share of all recorded flights in the period, all legs. · Jun 12, 2025 → Mar 7, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA SAN Seattle–Tacoma International Airport – San Diego International Airport | 1,692 | 13.3 min | 72.8% | 116 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| June 2025 | 16 | 16 | 81.3% | 0 |
| July 2025 | 26 | 26 | 84.6% | 0 |
| August 2025 | 25 | 25 | 64.0% | 0 |
| September 2025 | 28 | 27 | 74.1% | 1 |
| October 2025 | 21 | 20 | 60.0% | 1 |
| March 2026 | 1 | 1 | 100.0% | 0 |