AS1310
AS1310 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Seattle to San Jose. Of 508 departures recorded from October 2024 to July 2026, 74.0% left on time, according to the US BTS.
- On-time departures74.0%of 508 flights
- Average delay9.4 min
- July 202631▲ 3.3%vs July 2025
- Cancelled1.8%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 27 | 20 | ▼ 25.9% |
| February | 24 | 16 | ▼ 33.3% |
| March | 25 | 20 | ▼ 20.0% |
| April | 15 | 20 | ▲ 33.3% |
| May | 14 | 26 | ▲ 85.7% |
| June | 29 | 30 | ▲ 3.4% |
| July | 30 | 31 | ▲ 3.3% |
| August | 29 | – | – |
| September | 26 | – | – |
| October | 27 | – | in progress |
| November | 26 | – | – |
| December | 21 | – | – |
| Year to date (Jan–Jul) | 164 | 163 | ▼ 0.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 77.8% | 80.0% | ▲ 2.9% |
| February | 56.5% | 93.3% | ▲ 65.1% |
| March | 72.0% | 84.2% | ▲ 17.0% |
| April | 66.7% | 80.0% | ▲ 20.0% |
| May | 42.9% | 96.2% | ▲ 124.3% |
| June | 82.1% | 73.3% | ▼ 10.7% |
| July | 48.2% | 71.0% | ▲ 47.4% |
| August | 72.4% | – | – |
| September | 69.2% | – | – |
| October | 92.0% | – | in progress |
| November | 88.5% | – | – |
| December | 57.1% | – | – |
| Year-to-date average (Jan–Jul) | 63.7% | 82.6% | ▲ 29.6% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 1 | 0.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 3 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 2 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 2 | ▼ 60.0% |
according to the US BTS · October 2024 → 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 98.2% 499
- Cancelled 1.8% 9
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → 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 |
|---|---|---|---|---|
| SEA SJC Seattle–Tacoma International Airport – Mineta San Jose International Airport | 1,122 | 12.1 min | 69.8% | 344 |
| SNA SEA John Wayne Orange County International Airport – Seattle–Tacoma International Airport | 1,576 | 3.6 min | 82.6% | 164 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 58.3% | 0 |
| November 2024 | 17 | 17 | 64.7% | 0 |
| December 2024 | 23 | 23 | 82.6% | 0 |
| January 2025 | 27 | 27 | 77.8% | 0 |
| February 2025 | 24 | 23 | 56.5% | 1 |
| March 2025 | 25 | 25 | 72.0% | 0 |
| April 2025 | 15 | 15 | 66.7% | 0 |
| May 2025 | 14 | 14 | 42.9% | 0 |
| June 2025 | 29 | 28 | 82.1% | 1 |
| July 2025 | 30 | 27 | 48.2% | 3 |
| August 2025 | 29 | 29 | 72.4% | 0 |
| September 2025 | 26 | 26 | 69.2% | 0 |
| October 2025 | 27 | 25 | 92.0% | 2 |
| November 2025 | 26 | 26 | 88.5% | 0 |
| December 2025 | 21 | 21 | 57.1% | 0 |
| January 2026 | 20 | 20 | 80.0% | 0 |
| February 2026 | 16 | 15 | 93.3% | 1 |
| March 2026 | 20 | 19 | 84.2% | 1 |
| April 2026 | 20 | 20 | 80.0% | 0 |
| May 2026 | 26 | 26 | 96.2% | 0 |
| June 2026 | 30 | 30 | 73.3% | 0 |
| July 2026 | 31 | 31 | 71.0% | 0 |