Flight number record
OO 3874
SkyWest Airlines · Omaha to Salt Lake City
- Route
- OMA → SLC
- Departs
- 08:10
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3874, 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 3874 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 16 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 45 minutes. That rests on 365 flights, with a median arrival 10 minutes early.
Set against the rest of the country, OO 3874's record is 16 points better than the US average of 77.3%. That gap is worth roughly 155 fewer late arrivals for every thousand flights.
Key figures
On time
92.8%
Arrivals under 15 minutes late, of 363 completed flights
Avg delay
46 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
1 hour+ late
1.7%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 10 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 3874 flies
OO 3874 flies OMA to SLC without a single fixed slot. Its most common scheduled departure was 08:10, used on 81 of 365 flights, with 08:30 (70 flights) and 08:25 (66 flights) next.
- Departs 08:1081 flights22.2%
- Departs 08:3070 flights19.2%
- Departs 08:2566 flights18.1%
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 08:10 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 3874 runs 9 points better at 92.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 3874 next to OMA to SLC
Every carrier on OMA to SLC combined arrived on time 91.1% of the time across 781 flights, so OO 3874 is 2 points ahead of it. 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 3874 | 365 | 92.8% | 46 min | 0.27% | A+ |
| All SkyWest Airlines on OMA–SLC | 781 | 91.1% | 53 min | 0.13% | A+ |
| All carriers on OMA–SLC | 781 | 91.1% | 53 min | 0.13% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3874 quarter by quarter
Quarter by quarter OO 3874 held fairly steady: 96.7% in Jul–Sep 2025, 96.7% in Oct–Dec 2025, 89.8% in Jan–Mar 2026, 94.5% in Apr–Jun 2026 and 87.1% in Jul–Sep 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights96.7%
- Oct–Dec 202592 flights96.7%
- Jan–Mar 202690 flights89.8%
- Apr–Jun 202691 flights94.5%
- Jul–Sep 202662 flights87.1%
Scale runs 80% to 100%.
By weekday, OO 3874 ranged from 88.5% on Wednesday to 100.0% on Friday. With about 52 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late OO 3874 runs when it is late
OO 3874 often beats the schedule: 136 of 363 completed flights, 37%, arrived 15 minutes or more early. Most of the lateness is short. 14 of the 26 late arrivals were under half an hour behind, and 6 reached an hour or more.
- 15+ min early136 flights37.5%
- Within 15 min201 flights55.4%
- 15–29 min late14 flights3.9%
- 30–59 min late6 flights1.7%
- 1–2 hours late4 flights1.1%
- 2+ hours late2 flights0.6%
Scale runs 0% to 100%.
Share of 363 completed flights by arrival against schedule.
Only 15 of 363 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 3874
The latest arrival of the period was on 26 January 2026, 3 hours 24 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 January 2026 | 3 hours 24 minutes | Carrier |
| 6 January 2026 | 2 hours 26 minutes | Extreme weather |
| 26 July 2026 | 1 hour 58 minutes | Carrier |
| 7 April 2026 | 1 hour 30 minutes | Carrier |
| 10 June 2026 | 1 hour 24 minutes | Carrier |
Delay causes
Why OO 3874 runs late
Carrier accounts for 80% of the 1,207 delay minutes carriers reported here, and the remaining four split what is left.
- 80%Carrier
- 19%Extreme weather
- 2%National Airspace System
Extreme weather accounts for 19% 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 3.1 times the usual weather exposure. The split is drawn from 1,207 delay minutes reported on OO 3874.
Cancellations are rare at 0.27%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 1.7% 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.
The 840 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 365 flights under OO 3874 in the data flew OMA to SLC. 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 3874
For a booking, OO 3874 has one of the better records a US domestic flight can show: 92.8% on time and 0.27% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- OMA to SLC, every carrier and departure
- SLC to OMA, the return direction
- Eppley Airfield (OMA) delay statistics
- 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
- Worst months to fly in the US, ranked by the data
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.