AS379
AS379 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Baltimore to Seattle. Of 752 departures recorded from October 2024 to July 2026, 72.5% left on time, according to the US BTS.
- On-time departures72.5%of 752 flights
- Average delay13.3 min
- July 202630▲ 0.0%vs July 2025
- Cancelled0.5%
- 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 | 43 | 30 | ▼ 30.2% |
| February | 48 | 27 | ▼ 43.8% |
| March | 62 | 31 | ▼ 50.0% |
| April | 48 | 28 | ▼ 41.7% |
| May | 27 | 47 | ▲ 74.1% |
| June | 30 | 39 | ▲ 30.0% |
| July | 30 | 30 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 24 | – | in progress |
| November | 20 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 288 | 232 | ▼ 19.4% |
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 | 74.4% | 72.4% | ▼ 2.7% |
| February | 78.7% | 88.9% | ▲ 12.9% |
| March | 75.8% | 67.7% | ▼ 10.6% |
| April | 63.8% | 78.6% | ▲ 23.1% |
| May | 37.0% | 83.0% | ▲ 124.0% |
| June | 70.0% | 74.4% | ▲ 6.2% |
| July | 46.7% | 63.3% | ▲ 35.7% |
| August | 64.5% | – | – |
| September | 86.7% | – | – |
| October | 87.5% | – | in progress |
| November | 80.0% | – | – |
| December | 69.2% | – | – |
| Year-to-date average (Jan–Jul) | 63.8% | 75.5% | ▲ 18.3% |
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 | 1 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 1 | ▼ 50.0% |
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 99.5% 748
- Cancelled 0.5% 4
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 |
|---|---|---|---|---|
| BWI SEA Baltimore/Washington International Thurgood Marshall Airport – Seattle–Tacoma International Airport | 3,748 | 15.7 min | 69.3% | 587 |
| SEA BWI Seattle–Tacoma International Airport – Baltimore/Washington International Thurgood Marshall Airport | 3,748 | 4.9 min | 83.6% | 165 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 65.0% | 0 |
| November 2024 | 41 | 41 | 85.4% | 0 |
| December 2024 | 39 | 39 | 69.2% | 0 |
| January 2025 | 43 | 43 | 74.4% | 0 |
| February 2025 | 48 | 47 | 78.7% | 1 |
| March 2025 | 62 | 62 | 75.8% | 0 |
| April 2025 | 48 | 47 | 63.8% | 1 |
| May 2025 | 27 | 27 | 37.0% | 0 |
| June 2025 | 30 | 30 | 70.0% | 0 |
| July 2025 | 30 | 30 | 46.7% | 0 |
| August 2025 | 31 | 31 | 64.5% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 24 | 24 | 87.5% | 0 |
| November 2025 | 20 | 20 | 80.0% | 0 |
| December 2025 | 27 | 26 | 69.2% | 1 |
| January 2026 | 30 | 29 | 72.4% | 1 |
| February 2026 | 27 | 27 | 88.9% | 0 |
| March 2026 | 31 | 31 | 67.7% | 0 |
| April 2026 | 28 | 28 | 78.6% | 0 |
| May 2026 | 47 | 47 | 83.0% | 0 |
| June 2026 | 39 | 39 | 74.4% | 0 |
| July 2026 | 30 | 30 | 63.3% | 0 |