AS305
AS305 (Alaska Airlines) is a multi-stop service on 3 routes, busiest Miami to Seattle. Of 1,092 departures recorded from October 2024 to July 2026, 79.6% left on time, according to the US BTS.
- On-time departures79.6%of 1,092 flights
- Average delay10.2 min
- July 202662▲ 0.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number3
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 62 | 56 | ▼ 9.7% |
| February | 56 | 56 | 0.0% |
| March | 62 | 62 | 0.0% |
| April | 60 | 60 | 0.0% |
| May | 62 | 62 | 0.0% |
| June | 60 | 60 | 0.0% |
| July | 62 | 62 | 0.0% |
| August | 14 | – | – |
| September | – | – | – |
| October | 9 | – | in progress |
| November | 17 | – | – |
| December | 48 | – | – |
| Year to date (Jan–Jul) | 424 | 418 | ▼ 1.4% |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 82.3% | 75.0% | ▼ 8.8% |
| February | 82.1% | 85.7% | ▲ 4.3% |
| March | 79.0% | 67.2% | ▼ 15.0% |
| April | 81.7% | 76.3% | ▼ 6.6% |
| May | 79.0% | 91.8% | ▲ 16.2% |
| June | 78.3% | 90.0% | ▲ 14.9% |
| July | 65.0% | 82.3% | ▲ 26.6% |
| August | 50.0% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 70.6% | – | – |
| December | 81.3% | – | – |
| Year-to-date average (Jan–Jul) | 78.2% | 81.2% | ▲ 3.8% |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 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 99.4% 1,085
- Cancelled 0.6% 7
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 |
|---|---|---|---|---|
| MIA SEA Miami International Airport – Seattle–Tacoma International Airport | 4,379 | 16.0 min | 70.8% | 550 |
| SEA MIA Seattle–Tacoma International Airport – Miami International Airport | 4,379 | 4.6 min | 88.4% | 533 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 39 | 92.3% | 1 |
| November 2024 | 60 | 60 | 83.3% | 0 |
| December 2024 | 62 | 61 | 72.1% | 1 |
| January 2025 | 62 | 62 | 82.3% | 0 |
| February 2025 | 56 | 56 | 82.1% | 0 |
| March 2025 | 62 | 62 | 79.0% | 0 |
| April 2025 | 60 | 60 | 81.7% | 0 |
| May 2025 | 62 | 62 | 79.0% | 0 |
| June 2025 | 60 | 60 | 78.3% | 0 |
| July 2025 | 62 | 60 | 65.0% | 2 |
| August 2025 | 14 | 14 | 50.0% | 0 |
| October 2025 | 9 | 9 | 100.0% | 0 |
| November 2025 | 17 | 17 | 70.6% | 0 |
| December 2025 | 48 | 48 | 81.3% | 0 |
| January 2026 | 56 | 56 | 75.0% | 0 |
| February 2026 | 56 | 56 | 85.7% | 0 |
| March 2026 | 62 | 61 | 67.2% | 1 |
| April 2026 | 60 | 59 | 76.3% | 1 |
| May 2026 | 62 | 61 | 91.8% | 1 |
| June 2026 | 60 | 60 | 90.0% | 0 |
| July 2026 | 62 | 62 | 82.3% | 0 |