Flight profile · SkyWest Airlines
OO4128
Eugene (EUG) to Seattle (SEA) · scheduled 5:00 AM – 6:30 AM
How OO4128 performs
924 operations, 2023-10-09 to 2026-06-30.
OO4128 arrived on time 94.7% of the time, against 87.1% for all EUG → SEA flights — this specific departure is 7.6 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 5.8 points better.
Source: US DOT Bureau of Transportation Statistics · 924 operations between 2023-10-09 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4128 | 94.7% | 0.65% | -14 min | 2.5% | 924 |
| SkyWest Airlines on EUG → SEA | 88.9% | 1.01% | -10 min | 3.7% | 3,848 |
| All EUG → SEA flights | 87.1% | 1.07% | -9 min | 4.2% | 4,944 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-10-09 to 2026-06-30
By day of week
Does OO4128 run worse on particular days?
Wednesday is historically the most reliable day and Saturday the least, a gap of 4.6 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-10-09 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes OO4128 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 |
|---|---|---|---|
| ORD→JFK Chicago to New York | 2023-12-16 – 2024-01-07 | 9 | — |
| CLE→DTW Cleveland to Detroit | 2023-11-05 – 2023-12-15 | 29 | — |
| DTW→CLE Detroit to Cleveland | 2023-11-05 – 2023-12-15 | 29 | — |
| ATL→SBN Atlanta to South Bend | 2023-10-28 – 2023-11-04 | 8 | — |
| PDX→SEA Portland to Seattle | 2023-09-05 – 2023-10-08 | 34 | — |
| SEA→BOI Seattle to Boise | 2023-07-01 – 2023-09-04 | 58 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4128 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 924 records of OO4128 operating EUG → SEA, 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.