Flight profile · SkyWest Airlines
OO4059
Detroit (DTW) to Green Bay (GRB) · scheduled 10:00 AM – 10:27 AM
How OO4059 performs
596 operations, 2023-09-10 to 2026-06-30.
OO4059 arrived on time 79.8% of the time, against 77.0% for all DTW → GRB flights — this specific departure is 2.8 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 2.5 points better.
Source: US DOT Bureau of Transportation Statistics · 596 operations between 2023-09-10 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4059 | 79.8% | 0.67% | -10 min | 10.5% | 596 |
| SkyWest Airlines on DTW → GRB | 77.3% | 1.07% | -8 min | 11.8% | 2,429 |
| All DTW → GRB flights | 77.0% | 1.08% | -8 min | 11.4% | 2,684 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-09-10 to 2026-06-30
Other routes OO4059 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 |
|---|---|---|---|
| GRB→DTW Green Bay to Detroit | 2024-05-07 – 2026-06-30 | 507 | 79.2% |
| DTW→TVC Detroit to Traverse City | 2025-06-08 – 2026-02-08 | 174 | 87.0% |
| TVC→DTW Traverse City to Detroit | 2025-06-08 – 2025-12-01 | 171 | 86.7% |
| DTW→IND Detroit to Indianapolis | 2024-01-15 – 2024-03-08 | 28 | — |
| IND→DTW Indianapolis to Detroit | 2024-01-15 – 2024-03-08 | 28 | — |
| PHX→SLC Phoenix to Salt Lake City | 2023-12-26 – 2023-12-30 | 5 | — |
| SLC→PHX Salt Lake City to Phoenix | 2023-12-26 – 2023-12-30 | 5 | — |
| GFK→MSP Grand Forks to Minneapolis | 2023-12-16 – 2023-12-16 | 1 | — |
| MSP→GFK Minneapolis to Grand Forks | 2023-12-16 – 2023-12-16 | 1 | — |
| SEA→BOI Seattle to Boise | 2023-12-07 – 2023-12-15 | 9 | — |
| MSP→EWR Minneapolis to Newark | 2023-11-11 – 2023-11-25 | 3 | — |
| SMF→LAX Sacramento to Los Angeles | 2023-11-05 – 2023-11-19 | 3 | — |
| ATL→EVV Atlanta to Evansville | 2023-10-28 – 2023-11-04 | 8 | — |
| SLC→PSP Salt Lake City to Palm Springs | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4059 currently operates. Blending them would produce an average of two different flights.
Why OO4059 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
weather severe enough to stop this flight specifically
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for OO4059 on DTW → GRB. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 596 records of OO4059 operating DTW → GRB, 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.
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