AS313
AS313 (Alaska Airlines) is a multi-stop service on 3 routes, busiest Seattle to Detroit. Of 995 departures recorded from October 2024 to July 2026, 77.2% left on time, according to the US BTS.
- On-time departures77.2%of 995 flights
- Average delay10.6 min
- July 202661▲ 5.2%vs July 2025
- Cancelled0.2%
- Legs flown under this number3
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 | 20 | 61 | ▲ 205.0% |
| February | 22 | 56 | ▲ 154.5% |
| March | 18 | 62 | ▲ 244.4% |
| April | 18 | 51 | ▲ 183.3% |
| May | 45 | 50 | ▲ 11.1% |
| June | 46 | 60 | ▲ 30.4% |
| July | 58 | 61 | ▲ 5.2% |
| August | 57 | – | – |
| September | 56 | – | – |
| October | 62 | – | in progress |
| November | 58 | – | – |
| December | 55 | – | – |
| Year to date (Jan–Jul) | 227 | 401 | ▲ 76.7% |
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 | 80.0% | 72.9% | ▼ 8.9% |
| February | 50.0% | 82.1% | ▲ 64.3% |
| March | 66.7% | 85.5% | ▲ 28.2% |
| April | 83.3% | 94.1% | ▲ 12.9% |
| May | 60.0% | 84.0% | ▲ 40.0% |
| June | 69.6% | 83.3% | ▲ 19.8% |
| July | 75.9% | 72.1% | ▼ 4.9% |
| August | 77.2% | – | – |
| September | 80.4% | – | – |
| October | 82.3% | – | in progress |
| November | 82.8% | – | – |
| December | 65.5% | – | – |
| Year-to-date average (Jan–Jul) | 69.3% | 82.0% | ▲ 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 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 2 |
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 99.8% 993
- Cancelled 0.2% 2
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA DTW Seattle–Tacoma International Airport – Detroit Metropolitan Wayne County Airport | 3,093 | 6.4 min | 84.6% | 435 |
| DTW SEA Detroit Metropolitan Wayne County Airport – Seattle–Tacoma International Airport | 3,093 | 11.8 min | 75.0% | 393 |
| AUS SEA Austin Bergstrom International Airport – Seattle–Tacoma International Airport | 2,848 | 18.7 min | 63.5% | 167 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 65.0% | 0 |
| November 2024 | 29 | 29 | 75.9% | 0 |
| December 2024 | 30 | 30 | 83.3% | 0 |
| January 2025 | 20 | 20 | 80.0% | 0 |
| February 2025 | 22 | 22 | 50.0% | 0 |
| March 2025 | 18 | 18 | 66.7% | 0 |
| April 2025 | 18 | 18 | 83.3% | 0 |
| May 2025 | 45 | 45 | 60.0% | 0 |
| June 2025 | 46 | 46 | 69.6% | 0 |
| July 2025 | 58 | 58 | 75.9% | 0 |
| August 2025 | 57 | 57 | 77.2% | 0 |
| September 2025 | 56 | 56 | 80.4% | 0 |
| October 2025 | 62 | 62 | 82.3% | 0 |
| November 2025 | 58 | 58 | 82.8% | 0 |
| December 2025 | 55 | 55 | 65.5% | 0 |
| January 2026 | 61 | 59 | 72.9% | 2 |
| February 2026 | 56 | 56 | 82.1% | 0 |
| March 2026 | 62 | 62 | 85.5% | 0 |
| April 2026 | 51 | 51 | 94.1% | 0 |
| May 2026 | 50 | 50 | 84.0% | 0 |
| June 2026 | 60 | 60 | 83.3% | 0 |
| July 2026 | 61 | 61 | 72.1% | 0 |