Flight number record

OO 4263

SkyWest Airlines · Salt Lake City to St. George

Route: SLC → SGU
Departs: 17:25
Flights: 288
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4263, 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 4263 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 288 flights, with a median arrival 11 minutes early.

Set against the rest of the country, OO 4263's record is 8 points better than the US average of 77.6%. That gap is worth roughly 82 fewer late arrivals for every thousand flights.

On time

85.8%

Arrivals under 15 minutes late, of 288 completed flights

Avg delay

76 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

7.6%

National rate is 8.1%

These figures cover 288 flights between July 2025 and June 2026. The median arrival is 11 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 4263 flies

OO 4263 is scheduled to leave Salt Lake City (SLC) at 17:25 local time and reach St. George (SGU) at 18:35. That slot held for 287 of the 288 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 17:25287 flights99.7%

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 17:25 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and OO 4263 runs 18 points better at 85.8%. 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 4263 next to SLC to SGU

Every carrier on SLC to SGU combined arrived on time 92.1% of the time across 1,725 flights, so OO 4263 is 6 points behind it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 7 points.

OO 4263 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4263thin sample	288	85.8%	76 min	0.00%	A+
All SkyWest Airlines on SLC–SGU	1,725	92.1%	71 min	0.17%	A+
All carriers on SLC–SGU	1,725	92.1%	71 min	0.17%	A+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4263 quarter by quarter

OO 4263 did not run the same all year. Its best quarter was Jan–Mar 2026 at 90.7% on time and its weakest Apr–Jun 2026 at 80.2%, a swing of 11 points on roughly 72 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 flights90.2%
Oct–Dec 202562 flights83.9%
Jan–Mar 202643 flights90.7%
Apr–Jun 202691 flights80.2%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4263 did best on Tuesday at 92.9% on time and worst on Sunday at 80.5%. Each day rests on about 41 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 4263 runs late

One category carries most of the weight here. Carrier accounts for 91% of the 3,111 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
91%
Extreme weather
9%
National Airspace System
0%

The largest share of delay minutes, 91%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 2,821 of the 3,111 delay minutes reported here. The split is drawn from 3,111 delay minutes reported on OO 4263.

Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

7.6% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

Every one of the 288 flights under OO 4263 in the data flew SLC to SGU. 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. 288 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 4263

For a booking, OO 4263 is one of the weaker ways to fly SLC to SGU: 6 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

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