Flight profile · Alaska Airlines
AS367
Seattle (SEA) to Washington (IAD) · scheduled 11:30 PM – 7:27 AM
How AS367 performs
303 operations, 2025-06-12 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 303 operations between 2025-06-12 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS367 | 81.7% | 0.33% | -5 min | 4.0% | 303 |
| Alaska Airlines on SEA → IAD | 78.8% | 0.47% | -3 min | 3.4% | 2,532 |
| All SEA → IAD flights | 81.3% | 1.12% | -6 min | 5.2% | 6,313 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-06-12 to 2026-06-30
Other routes AS367 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| GEG→SEA Spokane to Seattle | 2026-01-07 – 2026-01-07 | 1 | — |
| DFW→SEA Dallas–Fort Worth to Seattle | 2025-05-15 – 2025-06-11 | 28 | — |
| SEA→MSP Seattle to Minneapolis | 2024-06-13 – 2024-08-19 | 67 | — |
| SEA→MKE Seattle to Milwaukee | 2023-07-01 – 2024-06-12 | 95 | 87.2% |
| MCO→SEA Orlando to Seattle | 2023-11-17 – 2024-04-15 | 131 | 66.9% |
| AUS→SEA Austin to Seattle | 2023-10-23 – 2023-10-23 | 1 | — |
| MKE→SEA Milwaukee to Seattle | 2023-07-01 – 2023-09-02 | 10 | — |
Because the same number has served different journeys, the statistics above describe only the route AS367 currently operates. Blending them would produce an average of two different flights.
Why AS367 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for AS367 on SEA → IAD. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on SEA → IAD
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL541 | Delta Air Lines | 78.2% | 6 min early | 626 |
| AS348 | Alaska Airlines | 76.6% | 2 min early | 687 |
| AS406 | Alaska Airlines | 75.7% | 0 min early | 838 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 303 records of AS367 operating SEA → IAD, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.