Flight profile · Alaska Airlines
AS418
Seattle (SEA) to Kansas City (MCI) · scheduled 9:13 AM – 2:39 PM
How AS418 performs
413 operations, 2023-07-02 to 2026-06-30.
AS418 arrived on time 85.4% of the time, against 78.5% for all SEA → MCI flights — this specific departure is 6.9 percentage points better than the route as a whole. Against Alaska Airlines’s own flights on this route it is 6.7 points better.
Source: US DOT Bureau of Transportation Statistics · 413 operations between 2023-07-02 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS418 | 85.4% | 0.24% | -7 min | 3.9% | 413 |
| Alaska Airlines on SEA → MCI | 78.7% | 0.70% | -3 min | 4.1% | 2,292 |
| All SEA → MCI flights | 78.5% | 0.90% | -4 min | 5.5% | 3,457 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-02 to 2026-06-30
Other routes AS418 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 |
|---|---|---|---|
| MCI→SEA Kansas City to Seattle | 2025-03-19 – 2026-06-30 | 380 | 80.8% |
| SEA→FAI Seattle to Fairbanks | 2026-05-13 – 2026-06-09 | 28 | — |
| PDX→DFW Portland to Dallas–Fort Worth | 2025-05-15 – 2025-06-10 | 27 | — |
| SEA→IAH Seattle to Houston | 2025-01-05 – 2025-01-05 | 1 | — |
| SEA→BOS Seattle to Boston | 2024-11-22 – 2024-11-22 | 1 | — |
| BOS→PDX Boston to Portland | 2024-08-23 – 2024-10-26 | 38 | — |
| PDX→SFO Portland to San Francisco | 2024-06-15 – 2024-08-19 | 49 | — |
| SEA→IAD Seattle to Washington | 2024-05-16 – 2024-06-12 | 28 | — |
| SEA→RSW Seattle to Fort Myers | 2024-03-14 – 2024-05-11 | 41 | — |
| SEA→MSP Seattle to Minneapolis | 2023-09-06 – 2024-03-13 | 184 | 88.2% |
Because the same number has served different journeys, the statistics above describe only the route AS418 currently operates. Blending them would produce an average of two different flights.
Why AS418 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
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for AS418 on SEA → MCI. 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 → MCI
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| AS296 | Alaska Airlines | 81.2% | 4 min early | 617 |
| DL2256 | Delta Air Lines | 78.8% | 8 min early | 752 |
| AS564 | Alaska Airlines | 74.4% | 1 min early | 763 |
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 413 records of AS418 operating SEA → MCI, 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.