Flight profile · SkyWest Airlines
OO5819
Chicago (ORD) to Duluth (DLH) · scheduled 9:00 AM – 10:43 AM
How OO5819 performs
552 operations, 2024-05-23 to 2026-06-30.
OO5819 arrived on time 74.0% of the time, against 71.7% for all ORD → DLH flights — this specific departure is 2.2 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 6.0 points better.
Source: US DOT Bureau of Transportation Statistics · 552 operations between 2024-05-23 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO5819 | 74.0% | 2.17% | -4 min | 9.9% | 552 |
| SkyWest Airlines on ORD → DLH | 68.0% | 2.42% | -1 min | 12.3% | 2,600 |
| All ORD → DLH flights | 71.7% | 2.22% | -3 min | 10.8% | 3,236 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-05-23 to 2026-06-30
Other routes OO5819 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→PVD Chicago to Providence/Warwick | 2026-02-11 – 2026-02-11 | 1 | — |
| ORD→DAY Chicago to Dayton | 2026-01-06 – 2026-02-10 | 26 | — |
| AVL→ORD Asheville to Chicago | 2024-09-27 – 2024-09-30 | 4 | — |
| BNA→ORD Nashville to Chicago | 2023-11-11 – 2023-11-11 | 1 | — |
| ORD→AVP Chicago to Wilkes-Barre/Scranton | 2023-10-28 – 2023-10-28 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route OO5819 currently operates. Blending them would produce an average of two different flights.
Why OO5819 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 OO5819 on ORD → DLH. 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 552 records of OO5819 operating ORD → DLH, 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.