Flight number record
OO 4294
SkyWest Airlines · Iron Mountain to Detroit
- Route
- IMT → DTW
- Departs
- 17:05
- Flights
- 365
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4294, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 4294 lands a B−, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 365 flights, with a median arrival 12 minutes early.
Key figures
On time
76.9%
Arrivals under 15 minutes late, of 351 completed flights
Avg delay
116 min
Across delayed arrivals only, not all flights
Cancelled
3.84%
National rate is 1.81%
1 hour+ late
12.3%
National rate is 8.1%
These figures cover 365 flights between July 2025 and June 2026. Beyond the headline rate, 12.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When OO 4294 flies
OO 4294 flies IMT to DTW without a single fixed slot. Its most common scheduled departure was 17:05, used on 122 of 365 flights, with 17:45 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 17:05122 flights33.4%
- Departs 17:4538 flights10.4%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 17:05 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and OO 4294 runs 9 points better at 76.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
OO 4294 next to IMT to DTW
Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4294 | 365 | 76.9% | 116 min | 3.84% | B− |
| All SkyWest Airlines on IMT–DTW | 365 | 76.9% | 116 min | 3.84% | B− |
| All carriers on IMT–DTW | 365 | 76.9% | 116 min | 3.84% | B− |
| SkyWest Airlines, whole network | 852,935 | 79.0% | 88 min | 1.77% | B |
Across the year
OO 4294 quarter by quarter
OO 4294 did not run the same all year. Its best quarter was Jul–Sep 2025 at 84.8% on time and its weakest Jan–Mar 2026 at 70.7%, a swing of 14 points on roughly 91 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202592 flights84.8%
- Oct–Dec 202592 flights71.6%
- Jan–Mar 202690 flights70.7%
- Apr–Jun 202691 flights79.8%
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4294 did best on Saturday at 86.0% on time and worst on Friday at 63.3%. Each day rests on about 52 flights, so a gap of 23 points is worth noticing but could still narrow in another year.
Delay causes
Why OO 4294 runs late
One category carries most of the weight here. Carrier accounts for 69% of the 9,381 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 69%Carrier
- 21%Extreme weather
- 10%National Airspace System
Extreme weather accounts for 21% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.4 times the usual weather exposure. The split is drawn from 9,381 delay minutes reported on OO 4294.
Cancellations run at 3.84%, against 1.81% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.3% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
Every one of the 365 flights under OO 4294 in the data flew IMT to DTW. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 365 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking OO 4294
For a booking, the cancellation rate is the figure to plan around on OO 4294: 3.84% of its 365 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- Detroit Metropolitan Wayne County (DTW) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- How often a connection fails at the major US hubs
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.