AS1137
AS1137 (Alaska Airlines) is a multi-stop service on 2 routes, busiest San Diego to Seattle. Of 550 departures recorded from October 2024 to July 2026, 73.6% left on time, according to the US BTS.
- On-time departures73.6%of 550 flights
- Average delay18.1 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.9%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 27 | 31 | ▲ 14.8% |
| February | 26 | 28 | ▲ 7.7% |
| March | 29 | 31 | ▲ 6.9% |
| April | 27 | 21 | ▼ 22.2% |
| May | 31 | 19 | ▼ 38.7% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 21 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 201 | 191 | ▼ 5.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 88.9% | 74.2% | ▼ 16.5% |
| February | 88.5% | 53.6% | ▼ 39.4% |
| March | 77.8% | 83.3% | ▲ 7.1% |
| April | 85.2% | 90.5% | ▲ 6.2% |
| May | 70.0% | 73.7% | ▲ 5.3% |
| June | 56.7% | 83.3% | ▲ 47.0% |
| July | 61.3% | 71.0% | ▲ 15.8% |
| August | 54.8% | – | – |
| September | 70.0% | – | – |
| October | 71.4% | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jul) | 75.5% | 75.6% | ▲ 0.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 2 | 1 | ▼ 50.0% |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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 99.1% 545
- Cancelled 0.9% 5
Share of all recorded flights in the period, all legs. · Oct 12, 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 |
|---|---|---|---|---|
| SAN SEA San Diego International Airport – Seattle–Tacoma International Airport | 1,692 | 20.7 min | 72.7% | 359 |
| KOA HNL Ellison Onizuka Kona International Airport at Keāhole – Daniel K. Inouye International Airport | 263 | 13.4 min | 75.3% | 191 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 19 | 94.7% | 1 |
| November 2024 | 28 | 28 | 75.0% | 0 |
| December 2024 | 28 | 28 | 64.3% | 0 |
| January 2025 | 27 | 27 | 88.9% | 0 |
| February 2025 | 26 | 26 | 88.5% | 0 |
| March 2025 | 29 | 27 | 77.8% | 2 |
| April 2025 | 27 | 27 | 85.2% | 0 |
| May 2025 | 31 | 30 | 70.0% | 1 |
| June 2025 | 30 | 30 | 56.7% | 0 |
| July 2025 | 31 | 31 | 61.3% | 0 |
| August 2025 | 31 | 31 | 54.8% | 0 |
| September 2025 | 30 | 30 | 70.0% | 0 |
| October 2025 | 21 | 21 | 71.4% | 0 |
| January 2026 | 31 | 31 | 74.2% | 0 |
| February 2026 | 28 | 28 | 53.6% | 0 |
| March 2026 | 31 | 30 | 83.3% | 1 |
| April 2026 | 21 | 21 | 90.5% | 0 |
| May 2026 | 19 | 19 | 73.7% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 31 | 71.0% | 0 |