Flight profile · SkyWest Airlines
OO5801
Charleston (CRW) to Chicago (ORD) · scheduled 7:00 AM – 8:05 AM
How OO5801 performs
983 operations, 2023-07-01 to 2026-06-30.
OO5801 arrived on time 79.0% of the time, against 69.7% for all CRW → ORD flights — this specific departure is 9.3 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 9.3 points better.
Source: US DOT Bureau of Transportation Statistics · 983 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO5801 | 79.0% | 1.93% | -7 min | 11.7% | 983 |
| SkyWest Airlines on CRW → ORD | 69.7% | 2.23% | -2 min | 14.4% | 2,830 |
| All CRW → ORD flights | 69.7% | 2.23% | -2 min | 14.4% | 2,830 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does OO5801 run worse on particular days?
Thursday is historically the most reliable day and Sunday the least, a gap of 4.7 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 OO5801 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 |
|---|---|---|---|
| BIS→DEN Bismarck to Denver | 2025-11-29 – 2025-11-30 | 2 | — |
| ORD→MSN Chicago to Madison | 2025-05-25 – 2025-06-22 | 7 | — |
| ORD→TYS Chicago to Knoxville/Maryville | 2024-05-23 – 2024-06-26 | 35 | — |
Because the same number has served different journeys, the statistics above describe only the route OO5801 currently operates. Blending them would produce an average of two different flights.
Why OO5801 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
Share of the delay minutes US DOT attributed to each cause for OO5801 on CRW → ORD. 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 CRW → ORD
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO4644 | SkyWest Airlines | 55.9% | 9 min late | 1,003 |
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 983 records of OO5801 operating CRW → ORD, 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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