Flight number record

OO 3874

SkyWest Airlines · Omaha to Salt Lake City

Route: OMA → SLC
Departs: 08:25
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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+. Nearly every flight arrives 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 77.6%. When something does go wrong the average delay runs an hour and a half. 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 77.6%. That gap is worth roughly 161 fewer late arrivals for every thousand flights.

On time

93.7%

Arrivals under 15 minutes late, of 363 completed flights

Avg delay

83 min

Across delayed arrivals only, not all flights

Cancelled

0.27%

National rate is 1.81%

1 hour+ late

2.2%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 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.

Schedule

When OO 3874 flies

OO 3874 flies OMA to SLC without a single fixed slot. Its most common scheduled departure was 08:25, used on 128 of 365 flights, with 08:30 (70 flights) and 08:10 (48 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:25128 flights35.1%
Departs 08:3070 flights19.2%
Departs 08:1048 flights13.2%

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 08:25 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 3874 runs 10 points better at 93.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

OO 3874 next to OMA to SLC

Every carrier on OMA to SLC combined arrived on time 91.7% of the time across 729 flights, so OO 3874 is 2 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 15 points.

OO 3874 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3874	365	93.7%	83 min	0.27%	A+
All SkyWest Airlines on OMA–SLC	729	91.7%	64 min	0.14%	A+
All carriers on OMA–SLC	729	91.7%	64 min	0.14%	A+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 3874 quarter by quarter

Quarter by quarter OO 3874 held fairly steady: 93.5% in Jul–Sep 2025, 96.7% in Oct–Dec 2025, 89.8% in Jan–Mar 2026 and 94.5% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights93.5%
Oct–Dec 202592 flights96.7%
Jan–Mar 202690 flights89.8%
Apr–Jun 202691 flights94.5%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

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.

Delay causes

Why OO 3874 runs late

One category carries most of the weight here. Carrier accounts for 84% of the 1,897 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.

Carrier
84%
Extreme weather
15%
National Airspace System
1%

Extreme weather accounts for 15% 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 2.5 times the usual weather exposure. The split is drawn from 1,897 delay minutes reported on OO 3874.

Cancellations are rare at 0.27%, below the national 1.81% 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 2.2% land an hour or more behind schedule, against 8.1% 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

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: 93.7% on time and 0.27% cancelled. That is a base rate, not a promise about any single day.

Where to go next

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.

Key figures