AS389
AS389 (Alaska Airlines) flies Boston to San Diego. Of 568 departures recorded from October 2024 to July 2026, 76.1% left on time, according to the US BTS.
- On-time departures76.1%of 568 flights
- Average delay10.7 min
- July 202630▲ 0.0%vs July 2025
- Cancelled0.7%
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 26 | ▼ 7.1% |
| February | 24 | 27 | ▲ 12.5% |
| March | 28 | 31 | ▲ 10.7% |
| April | 21 | 30 | ▲ 42.9% |
| May | 17 | 31 | ▲ 82.4% |
| June | 30 | 30 | 0.0% |
| July | 30 | 30 | 0.0% |
| August | 26 | – | – |
| September | 17 | – | – |
| October | 19 | – | in progress |
| November | 20 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 178 | 205 | ▲ 15.2% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 82.1% | 83.3% | ▲ 1.4% |
| February | 83.3% | 96.2% | ▲ 15.4% |
| March | 96.4% | 58.1% | ▼ 39.8% |
| April | 95.2% | 76.7% | ▼ 19.5% |
| May | 58.8% | 77.4% | ▲ 31.6% |
| June | 60.0% | 80.0% | ▲ 33.3% |
| July | 50.0% | 66.7% | ▲ 33.3% |
| August | 53.9% | – | – |
| September | 70.6% | – | – |
| October | 61.1% | – | in progress |
| November | 70.0% | – | – |
| December | 81.5% | – | – |
| Year-to-date average (Jan–Jul) | 75.1% | 76.9% | ▲ 2.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 3 |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 99.3% 564
- Cancelled 0.7% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS SAN Boston Logan International Airport – San Diego International Airport | 4,156 | 10.7 min | 76.1% | 568 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 100.0% | 0 |
| November 2024 | 26 | 26 | 100.0% | 0 |
| December 2024 | 31 | 31 | 77.4% | 0 |
| January 2025 | 28 | 28 | 82.1% | 0 |
| February 2025 | 24 | 24 | 83.3% | 0 |
| March 2025 | 28 | 28 | 96.4% | 0 |
| April 2025 | 21 | 21 | 95.2% | 0 |
| May 2025 | 17 | 17 | 58.8% | 0 |
| June 2025 | 30 | 30 | 60.0% | 0 |
| July 2025 | 30 | 30 | 50.0% | 0 |
| August 2025 | 26 | 26 | 53.9% | 0 |
| September 2025 | 17 | 17 | 70.6% | 0 |
| October 2025 | 19 | 18 | 61.1% | 1 |
| November 2025 | 20 | 20 | 70.0% | 0 |
| December 2025 | 27 | 27 | 81.5% | 0 |
| January 2026 | 26 | 24 | 83.3% | 2 |
| February 2026 | 27 | 26 | 96.2% | 1 |
| March 2026 | 31 | 31 | 58.1% | 0 |
| April 2026 | 30 | 30 | 76.7% | 0 |
| May 2026 | 31 | 31 | 77.4% | 0 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 30 | 30 | 66.7% | 0 |