Flight number record
OO 4112
SkyWest Airlines · Missoula to Salt Lake City
- Route
- MSO → SLC
- Departs
- 13:13
- Flights
- 252
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 4112, 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 4112 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 252 flights, with a median arrival 12 minutes early.
Set against the rest of the country, OO 4112's record is 15 points better than the US average of 77.3%. That gap is worth roughly 154 fewer late arrivals for every thousand flights.
Key figures
On time
92.7%
Arrivals under 15 minutes late, of 245 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
2.78%
National rate is 1.89%
1 hour+ late
2.9%
National rate is 8.3%
These figures cover 252 flights between September 2025 and August 2026. The median arrival is 12 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When OO 4112 flies
OO 4112 flies MSO to SLC without a single fixed slot. Its most common scheduled departure was 13:13, used on 41 of 252 flights, with 13:07 (32 flights) and 13:14 (31 flights) next.
- Departs 13:1341 flights16.3%
- Departs 13:0732 flights12.7%
- Departs 13:1431 flights12.3%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 13:13 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 4112 runs 14 points better at 92.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
OO 4112 next to MSO to SLC
Every carrier on MSO to SLC combined arrived on time 91.2% of the time across 1,059 flights, so OO 4112 is 2 points ahead of it. SkyWest flew 592 flights on the same city pair under all its flight numbers, including this one, and those ran 91.8% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 14 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4112thin sample | 252 | 92.7% | 66 min | 2.78% | A |
| All SkyWest Airlines on MSO–SLC | 592 | 91.8% | 56 min | 1.35% | A |
| All carriers on MSO–SLC | 1,059 | 91.2% | 75 min | 0.94% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 4112 quarter by quarter
Quarter by quarter OO 4112 held fairly steady: 94.1% in Oct–Dec 2025, 96.4% in Apr–Jun 2026 and 87.1% in Jul–Sep 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202524 flights—
- Oct–Dec 202592 flights94.1%
- Jan–Mar 202619 flights—
- Apr–Jun 202655 flights96.4%
- Jul–Sep 202662 flights87.1%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4112 ranged from 85.7% on Saturday to 97.1% on Tuesday. With about 36 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late OO 4112 runs when it is late
OO 4112 often beats the schedule: 104 of 245 completed flights, 42%, arrived 15 minutes or more early. The 18 late arrivals split 8 under half an hour, 3 between 30 and 60 minutes, and 7 an hour or more.
- 15+ min early104 flights42.4%
- Within 15 min123 flights50.2%
- 15–29 min late8 flights3.3%
- 30–59 min late3 flights1.2%
- 1–2 hours late5 flights2.0%
- 2+ hours late2 flights0.8%
Scale runs 0% to 100%.
Share of 245 completed flights by arrival against schedule.
Only 19 of 245 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for OO 4112
The latest arrival of the period was on 5 December 2025, 4 hours 3 minutes behind schedule; most of its delay minutes were filed as extreme weather. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 December 2025 | 4 hours 3 minutes | Extreme weather |
| 14 January 2026 | 3 hours 31 minutes | Extreme weather |
| 26 December 2025 | 1 hour 44 minutes | Carrier |
| 17 August 2026 | 1 hour 41 minutes | Extreme weather |
| 3 August 2026 | 1 hour 33 minutes | Carrier |
Delay causes
Why OO 4112 runs late
Extreme weather accounts for 59% of the 1,193 delay minutes carriers reported here, and the remaining four split what is left.
- 59%Extreme weather
- 33%Carrier
- 8%National Airspace System
Extreme weather accounts for 59% 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 9.8 times the usual weather exposure. The split is drawn from 1,193 delay minutes reported on OO 4112.
Cancellations run at 2.78%, against 1.89% nationally. That is roughly one flight in 40 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
Badly late arrivals are rare here: only 2.9% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
OO 4112 is not only a MSO to SLC flight. It also flew SLC to MSO (252 flights, 94.2% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 252 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SLC to MSOthin sample | 252 | 94.2% | 49 min | 2.78% | A |
What to do with this
Booking OO 4112
For a booking, the cancellation rate is the figure to plan around on OO 4112: 2.78% of its 252 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- MSO to SLC, every carrier and departure
- SLC to MSO, the return direction
- Delta Air Lines 2795 on the same route92.4%
- SkyWest Airlines 3808 on the same route91.1%
- Salt Lake City International (SLC) 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
- What a cancellation rate actually tells you (and what it hides)
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.