Flight profile · SkyWest Airlines
OO4127
Seattle (SEA) to Boise (BOI) · scheduled 10:35 AM – 1:06 PM
How OO4127 performs
979 operations, 2023-09-05 to 2026-06-30.
OO4127 arrived on time 85.2% of the time, against 84.1% for all SEA → BOI flights — this specific departure is 1.0 percentage points better than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 979 operations between 2023-09-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4127 | 85.2% | 0.10% | -6 min | 4.5% | 979 |
| SkyWest Airlines on SEA → BOI | 85.8% | 0.18% | -6 min | 3.8% | 9,647 |
| All SEA → BOI flights | 84.1% | 0.24% | -6 min | 4.0% | 11,897 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-09-05 to 2026-06-30
By day of week
Does OO4127 run worse on particular days?
Saturday is historically the most reliable day and Wednesday the least, a gap of 8.5 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-09-05 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes OO4127 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.
Because the same number has served different journeys, the statistics above describe only the route OO4127 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 979 records of OO4127 operating SEA → BOI, 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.