Flight profile · SkyWest Airlines
OO4789
Chicago (ORD) to Fargo (FAR) · scheduled 7:55 PM – 9:59 PM
How OO4789 performs
869 operations, 2023-07-01 to 2026-06-30.
OO4789 arrived on time 64.4% of the time, against 72.2% for all ORD → FAR flights — this specific departure is 7.8 percentage points worse than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 5.0 points worse.
Source: US DOT Bureau of Transportation Statistics · 869 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4789 | 64.4% | 2.88% | 2 min | 14.1% | 869 |
| SkyWest Airlines on ORD → FAR | 69.4% | 1.87% | -1 min | 13.0% | 3,050 |
| All ORD → FAR flights | 72.2% | 1.73% | -1 min | 10.7% | 5,607 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does OO4789 run worse on particular days?
Tuesday is historically the most reliable day and Friday the least, a gap of 8.7 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes OO4789 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→FNT Chicago to Flint | 2026-06-01 – 2026-06-24 | 24 | — |
| ORD→CRW Chicago to Charleston | 2026-05-21 – 2026-05-31 | 11 | — |
| GEG→SFO Spokane to San Francisco | 2026-04-30 – 2026-05-20 | 18 | — |
| IAH→OKC Houston to Oklahoma City | 2026-05-02 – 2026-05-16 | 3 | — |
| DEN→XWA Denver to Williston | 2026-03-29 – 2026-04-29 | 32 | — |
| DEN→MFR Denver to Medford | 2026-01-06 – 2026-03-28 | 82 | — |
| MLI→ORD Moline to Chicago | 2025-09-25 – 2025-10-25 | 31 | — |
| LAX→RDM Los Angeles to Redmond | 2025-09-06 – 2025-09-20 | 3 | — |
| SAN→LAX San Diego to Los Angeles | 2025-07-04 – 2025-07-04 | 1 | — |
| ORD→MSN Chicago to Madison | 2025-06-21 – 2025-06-22 | 2 | — |
| ORD→SAT Chicago to San Antonio | 2024-09-12 – 2024-09-14 | 2 | — |
| DEN→CPR Denver to Casper | 2024-05-22 – 2024-05-22 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4789 currently operates. Blending them would produce an average of two different flights.
Why OO4789 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
weather severe enough to stop this flight specifically
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 OO4789 on ORD → FAR. 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 ORD → FAR
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO4778 | SkyWest Airlines | 74.5% | 1 min early | 1,051 |
| MQ3377 | Envoy Air | 72.6% | 2 min early | 787 |
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 869 records of OO4789 operating ORD → FAR, 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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