AS1491
AS1491 (Alaska Airlines) is a multi-stop service on 4 routes, busiest Denver to San Diego. Of 156 departures recorded from February 2025 to June 2026, 85.0% left on time, according to the US BTS.
- On-time departures85.0%of 156 flights
- Average delay7.1 min
- June 20261
- Cancelled1.9%
- Legs flown under this number4
Recorded departures by month
Short series — AS1491 has only 9 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 periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 27 | – |
| February | 1 | 28 | ▲ 2,700.0% |
| March | – | 31 | – |
| April | – | 30 | – |
| May | – | 12 | – |
| June | – | 1 | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 6 | – | in progress |
| November | 20 | – | – |
| December | – | – | – |
according to the US BTS · February 2025 → June 2026
On-time departures by month
Short series — AS1491 has only 9 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 periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 92.6% | – |
| February | 100.0% | 85.7% | ▼ 14.3% |
| March | – | 63.3% | – |
| April | – | 96.7% | – |
| May | – | 83.3% | – |
| June | – | 100.0% | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 84.2% | – | – |
| December | – | – | – |
according to the US BTS · February 2025 → June 2026
Average departure delay by month
Short series — AS1491 has only 9 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 · February 2025 → June 2026
Cancelled departures by month
Short series — AS1491 has only 9 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | 0 | 0 | – |
| March | – | 1 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
according to the US BTS · February 2025 → June 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 98.1% 153
- Cancelled 1.9% 3
Share of all recorded flights in the period, all legs. · Feb 13, 2025 → Jun 10, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN SAN Denver International Airport – San Diego International Airport | 1,371 | 7.0 min | 85.2% | 152 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| February 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 6 | 5 | 100.0% | 1 |
| November 2025 | 20 | 19 | 84.2% | 1 |
| January 2026 | 27 | 27 | 92.6% | 0 |
| February 2026 | 28 | 28 | 85.7% | 0 |
| March 2026 | 31 | 30 | 63.3% | 1 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 12 | 12 | 83.3% | 0 |
| June 2026 | 1 | 1 | 100.0% | 0 |