AS1340
AS1340 (Alaska Airlines) is a multi-stop service on 2 routes, busiest San Francisco to Seattle. Of 261 departures recorded from October 2025 to July 2026, 74.6% left on time, according to the US BTS.
- On-time departures74.6%of 261 flights
- Average delay10.2 min
- July 202631
- Cancelled0.4%
- Legs flown under this number2
Recorded departures by month
Short series — AS1340 has only 10 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 periods10 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 30 | – |
| February | – | 25 | – |
| March | – | 27 | – |
| April | – | 26 | – |
| May | – | 28 | – |
| June | – | 29 | – |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | 6 | – | in progress |
| November | 30 | – | – |
| December | 29 | – | – |
according to the US BTS · October 2025 → July 2026
On-time departures by month
Short series — AS1340 has only 10 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 periods10 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 83.3% | – |
| February | – | 76.0% | – |
| March | – | 77.8% | – |
| April | – | 76.9% | – |
| May | – | 82.1% | – |
| June | – | 44.8% | – |
| July | – | 63.3% | – |
| August | – | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 93.3% | – | – |
| December | 69.0% | – | – |
according to the US BTS · October 2025 → July 2026
Average departure delay by month
Short series — AS1340 has only 10 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · October 2025 → July 2026
Cancelled departures by month
Short series — AS1340 has only 10 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods10 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 1 | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2025 → 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 99.6% 260
- Cancelled 0.4% 1
Share of all recorded flights in the period, all legs. · Oct 26, 2025 → 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 |
|---|---|---|---|---|
| SFO SEA San Francisco International Airport – Seattle–Tacoma International Airport | 1,093 | 16.0 min | 65.9% | 183 |
| SMF SAN Sacramento International Airport – San Diego International Airport | 773 | -3.2 min | 94.9% | 78 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2025 | 6 | 6 | 100.0% | 0 |
| November 2025 | 30 | 30 | 93.3% | 0 |
| December 2025 | 29 | 29 | 69.0% | 0 |
| January 2026 | 30 | 30 | 83.3% | 0 |
| February 2026 | 25 | 25 | 76.0% | 0 |
| March 2026 | 27 | 27 | 77.8% | 0 |
| April 2026 | 26 | 26 | 76.9% | 0 |
| May 2026 | 28 | 28 | 82.1% | 0 |
| June 2026 | 29 | 29 | 44.8% | 0 |
| July 2026 | 31 | 30 | 63.3% | 1 |