AS991
AS991 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Seattle to Honolulu. Of 122 departures recorded from January 2026 to May 2026, 63.3% left on time, according to the US BTS.
- On-time departures63.3%of 122 flights
- Average delay35.8 min
- May 20267
- Cancelled1.6%
- Legs flown under this number2
Recorded departures by month
Short series — AS991 has only 5 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.
The most recent periods5 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 31 | – |
| February | – | 28 | – |
| March | – | 31 | – |
| April | – | 25 | – |
| May | – | 7 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → May 2026
On-time departures by month
Short series — AS991 has only 5 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods5 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 60.0% | – |
| February | – | 44.4% | – |
| March | – | 64.5% | – |
| April | – | 84.0% | – |
| May | – | 71.4% | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → May 2026
Average departure delay by month
Short series — AS991 has only 5 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · January 2026 → May 2026
Cancelled departures by month
Short series — AS991 has only 5 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods5 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 1 | – |
| February | – | 1 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → May 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 98.4% 120
- Cancelled 1.6% 2
Share of all recorded flights in the period, all legs. · Jan 1, 2026 → May 12, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA HNL Seattle–Tacoma International Airport – Daniel K. Inouye International Airport | 4,308 | 37.3 min | 61.1% | 110 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2026 | 31 | 30 | 60.0% | 1 |
| February 2026 | 28 | 27 | 44.4% | 1 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 25 | 25 | 84.0% | 0 |
| May 2026 | 7 | 7 | 71.4% | 0 |