Flight profile · SkyWest Airlines
OO5274
Chicago (ORD) to South Bend (SBN) · scheduled 9:05 PM – 11:02 PM
How OO5274 performs
729 operations, 2024-05-23 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 729 operations between 2024-05-23 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO5274 | 70.0% | 2.74% | 0 min | 10.4% | 729 |
| SkyWest Airlines on ORD → SBN | 68.9% | 2.88% | -1 min | 13.6% | 6,697 |
| All ORD → SBN flights | 69.0% | 2.86% | -1 min | 13.5% | 6,747 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-05-23 to 2026-06-30
Other routes OO5274 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 |
|---|---|---|---|
| CRW→ORD Charleston to Chicago | 2026-04-01 – 2026-04-29 | 29 | — |
| SFO→SBA San Francisco to Santa Barbara | 2025-02-12 – 2025-02-12 | 1 | — |
| LNK→ORD Lincoln to Chicago | 2023-09-05 – 2024-05-22 | 198 | 86.9% |
| MTJ→DEN Montrose to Denver | 2024-03-31 – 2024-03-31 | 1 | — |
| GJT→DEN Grand Junction to Denver | 2024-01-09 – 2024-02-14 | 17 | — |
| ORD→IND Chicago to Indianapolis | 2023-08-01 – 2023-09-04 | 25 | — |
| ORD→DCA Chicago to Washington | 2023-07-01 – 2023-09-03 | 21 | — |
Because the same number has served different journeys, the statistics above describe only the route OO5274 currently operates. Blending them would produce an average of two different flights.
Why OO5274 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
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for OO5274 on ORD → SBN. 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 → SBN
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO4791 | SkyWest Airlines | 73.1% | 5 min early | 974 |
| OO5564 | SkyWest Airlines | 70.5% | 0 min early | 716 |
| OO4636 | SkyWest Airlines | 63.5% | 1 min late | 1,015 |
| OO5499 | SkyWest Airlines | 62.5% | 4 min late | 722 |
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 729 records of OO5274 operating ORD → SBN, 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.