AS166
AS166 (Alaska Airlines) is a multi-stop service on 3 routes, busiest Boise to San Diego. Of 198 departures recorded from June 2025 to April 2026, 90.8% left on time, according to the US BTS.
- On-time departures90.8%of 198 flights
- Average delay0.7 min
- April 202621
- Cancelled1.5%
- Legs flown under this number3
Recorded departures by month
Short series — AS166 has only 8 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 periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 31 | – |
| February | – | 28 | – |
| March | – | 31 | – |
| April | – | 21 | – |
| May | – | – | – |
| June | 1 | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
according to the US BTS · June 2025 → April 2026
On-time departures by month
Short series — AS166 has only 8 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 periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 96.8% | – |
| February | – | 96.4% | – |
| March | – | 86.7% | – |
| April | – | 85.7% | – |
| May | – | – | – |
| June | 100.0% | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 72.0% | – | in progress |
| November | 100.0% | – | – |
| December | 93.6% | – | – |
according to the US BTS · June 2025 → April 2026
Average departure delay by month
Short series — AS166 has only 8 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 → April 2026
Cancelled departures by month
Short series — AS166 has only 8 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | 1 | – |
| April | – | 0 | – |
| May | – | – | – |
| June | 0 | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
according to the US BTS · June 2025 → April 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 98.5% 195
- Cancelled 1.5% 3
Share of all recorded flights in the period, all legs. · Jun 11, 2025 → Apr 21, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOI SAN Boise Air Terminal/Gowen Field – San Diego International Airport | 1,207 | -1.7 min | 93.7% | 176 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| June 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 26 | 25 | 72.0% | 1 |
| November 2025 | 29 | 28 | 100.0% | 1 |
| December 2025 | 31 | 31 | 93.6% | 0 |
| January 2026 | 31 | 31 | 96.8% | 0 |
| February 2026 | 28 | 28 | 96.4% | 0 |
| March 2026 | 31 | 30 | 86.7% | 1 |
| April 2026 | 21 | 21 | 85.7% | 0 |