AS348
AS348 (Alaska Airlines) is a multi-stop service on 5 routes, busiest Seattle to Dulles. Of 465 departures recorded from October 2024 to July 2026, 71.8% left on time, according to the US BTS.
- On-time departures71.8%of 465 flights
- Average delay11.7 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.9%
- Legs flown under this number5
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 | 7 | 19 | ▲ 171.4% |
| February | 2 | 23 | ▲ 1,050.0% |
| March | 11 | 17 | ▲ 54.5% |
| April | 22 | 9 | ▼ 59.1% |
| May | 11 | 30 | ▲ 172.7% |
| June | 20 | 30 | ▲ 50.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 26 | – | in progress |
| November | 20 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 104 | 159 | ▲ 52.9% |
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 | 57.1% | 50.0% | ▼ 12.5% |
| February | 100.0% | 73.9% | ▼ 26.1% |
| March | 72.7% | 81.3% | ▲ 11.7% |
| April | 72.7% | 88.9% | ▲ 22.2% |
| May | 81.8% | 83.3% | ▲ 1.8% |
| June | 45.0% | 93.3% | ▲ 107.4% |
| July | 64.5% | 77.4% | ▲ 20.0% |
| August | 51.6% | – | – |
| September | 90.0% | – | – |
| October | 72.0% | – | in progress |
| November | 42.1% | – | – |
| December | 72.4% | – | – |
| Year-to-date average (Jan–Jul) | 70.6% | 78.3% | ▲ 11.0% |
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 | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| 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 99.1% 461
- Cancelled 0.9% 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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA IAD Seattle–Tacoma International Airport – Washington Dulles International Airport | 3,702 | 10.0 min | 71.2% | 293 |
| ATL SEA Hartsfield Jackson Atlanta International Airport – Seattle–Tacoma International Airport | 3,505 | 17.3 min | 70.1% | 129 |
| PDX SEA Portland International Airport – Seattle–Tacoma International Airport | 208 | 8.2 min | 78.8% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 82.4% | 0 |
| November 2024 | 26 | 26 | 69.2% | 0 |
| December 2024 | 23 | 23 | 73.9% | 0 |
| January 2025 | 7 | 7 | 57.1% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 11 | 11 | 72.7% | 0 |
| April 2025 | 22 | 22 | 72.7% | 0 |
| May 2025 | 11 | 11 | 81.8% | 0 |
| June 2025 | 20 | 20 | 45.0% | 0 |
| July 2025 | 31 | 31 | 64.5% | 0 |
| August 2025 | 31 | 31 | 51.6% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 26 | 25 | 72.0% | 1 |
| November 2025 | 20 | 19 | 42.1% | 1 |
| December 2025 | 29 | 29 | 72.4% | 0 |
| January 2026 | 19 | 18 | 50.0% | 1 |
| February 2026 | 23 | 23 | 73.9% | 0 |
| March 2026 | 17 | 16 | 81.3% | 1 |
| April 2026 | 9 | 9 | 88.9% | 0 |
| May 2026 | 30 | 30 | 83.3% | 0 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 77.4% | 0 |