Flight profile · SkyWest Airlines
OO4754
Detroit (DTW) to Chicago (ORD) · scheduled 6:00 AM – 6:30 AM
How OO4754 performs
666 operations, September 2023 – July 2026.
OO4754 arrived on time 88.7% of the time, against 77.7% for all DTW → ORD flights, so this departure is 11.0 percentage points better than the route as a whole. Against SkyWest Airlines’ own flights on this route it is 9.9 points better.
Source: US DOT Bureau of Transportation Statistics · 666 operations, September 2023 – July 2026 · If OO4754 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
What stands out
How OO4754 compares to other flight numbers, not just to itself.
This flight runs unusually far ahead of the DTW → ORD route as a whole, better than 92% of 11,788 comparable flight numbers.
88.7% on time for this specific departure, against 77.7% for every DTW → ORD flight.
Source: FlyerIntel analysis of US DOT BTS data · September 2023 – July 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.
Where OO4754 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| OO4754 | 88.7% | 1.95% | -16 min | 6.1% | 666 |
| SkyWest Airlines on DTW → ORD | 78.8% | 2.00% | -7 min | 9.2% | 6,835 |
| All DTW → ORD flights | 77.7% | 1.93% | -6 min | 9.0% | 17,417 |
Source: FlyerIntel analysis of US DOT BTS data · September 2023 – July 2026
Why OO4754 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding and fueling, all 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 OO4754 on DTW → ORD. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering September 2023 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies OO4754 comes in late, and what that does to the departure.
OO4754 is usually the aircraft’s first flight of the day: the schedule gives it a median of 9.6 hours on the ground at DTW, so its “inbound” is mostly the aircraft’s arrival the evening before.
When the aircraft came in 15 or more minutes late, OO4754 pushed back an average of 17 minutes late; when it came in on time or early, an average of 2 minutes late.
Each departure is matched to the flight the same aircraft flew into DTW just before it, using the tail number in the DOT file, 636 of 653 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| OO4754 | 29% | 17% | 9% |
| Network, same turn | 29% | 12% | 9% |
A night on the ground absorbs most of a late arrival, so a late inbound matters far less on a turn this long than on a same-day one.
The network row is every flight with a scheduled turn of 6 hours or more, usually overnight. How often OO4754’s aircraft landed 15 or more minutes late is about the same as the network’s and, once the aircraft was late, how often OO4754 left 15 or more minutes late is higher than the network’s.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering September 2023 – July 2026
From pushback to gate
When it leaves DTW late, does that still matter by the time it reaches ORD?
OO4754 pushes back an average of 9.4 minutes late and reaches the gate at ORD an average of 2.3 minutes early. The 11.7 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. It spends 20.4 minutes on the taxiways at DTW, 1.7 minutes longer than a typical DTW departure in the same hour.
On arrival at ORD, OO4754 spends 11.6 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 6.2 minutes shorter than a typical ORD arrival (17.8 min).
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached ORD. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 13,777 departures from DTW scheduled in the clock hour OO4754 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at ORD (952,666 flights), not just OO4754’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · September 2023 – July 2026
The hour it leaves DTW
Part of any flight’s record belongs to the clock rather than to the flight. OO4754 has one departure time, so this is what that time is worth.
On-time arrival rate. 13,777 departures from DTW are scheduled in the 6 AM–7 AM hour over the period, against 388,632 across the whole day.
OO4754 is scheduled out of DTW at 6:00 AM, in the 6 AM–7 AM bank. Departures from DTW in that hour arrive on time 87.3% of the time against 79.6% across the airport’s whole day — the slot alone is worth 7.7 points better before anything about this particular flight is considered.
The two airport figures cover every departure from DTW to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · September 2023 – July 2026 · Hours below 120 departures are not scored.
Other routes OO4754 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 |
|---|---|---|---|
| BOI→ORD Boise to Chicago | June 25, 2026 | 1 | — |
| IAH→BTR Houston to Baton Rouge | May 1–19, 2026 | 9 | — |
| DEN→HLN Denver to Helena | March 29, 2026 – April 29, 2026 | 32 | — |
| BZN→ORD Bozeman to Chicago | March 5, 2026 | 1 | — |
| IAH→LFT Houston to Lafayette | March 4, 2026 | 1 | — |
| ORD→AVP Chicago to Wilkes-Barre/Scranton | February 12, 2026 – March 3, 2026 | 20 | — |
| COS→ORD Colorado Springs to Chicago | January 6, 2026 – February 11, 2026 | 37 | — |
| DSM→IAH Des Moines to Houston | March 6, 2025 – November 28, 2025 | 2 | — |
| AUS→LAX Austin to Los Angeles | August 19, 2025 | 1 | — |
| IAH→STL Houston to St. Louis | June 26, 2025 – August 18, 2025 | 38 | — |
| CID→ORD Cedar Rapids to Chicago | May 22, 2025 – June 25, 2025 | 32 | — |
| ORD→MSN Chicago to Madison | June 7–21, 2025 | 3 | — |
| BZN→SFO Bozeman to San Francisco | April 6–27, 2025 | 4 | — |
| DEN→SLC Denver to Salt Lake City | December 19, 2024 – January 6, 2025 | 19 | — |
| MFR→DEN Medford to Denver | November 29, 2024 | 1 | — |
| ORD→BOI Chicago to Boise | January 9, 2024 – February 14, 2024 | 37 | — |
| DSM→DEN Des Moines to Denver | December 21, 2023 – January 8, 2024 | 19 | — |
| DEN→TUS Denver to Tucson | October 29, 2023 – December 20, 2023 | 51 | — |
| ORD→BNA Chicago to Nashville | July 1, 2023 – September 28, 2023 | 88 | — |
| DEN→TUL Denver to Tulsa | September 2–3, 2023 | 2 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4754 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
17 min late
against a median of 16 min early
Percentiles over 666 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering September 2023 – July 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO4754 this flight | SkyWest Airlines | 88.7% | 16 min early | 666 |
| OO5353 | SkyWest Airlines | 83.9% | 5 min early | 817 |
| OO4736 | SkyWest Airlines | 80.9% | 7 min early | 739 |
| DL2358 | Delta Air Lines | 77.4% | 6 min early | 613 |
| DL1665 | Delta Air Lines | 71.7% | 5 min early | 707 |
| UA426 | United Airlines | 67.3% | 3 min late | 997 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. OO4754 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 666 records of OO4754 operating DTW → 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.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
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