Flight number record
OO 4263
SkyWest Airlines · Salt Lake City to St. George
- Route
- SLC → SGU
- Departs
- 17:25
- Flights
- 282
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 282 flights, with a median arrival 11 minutes early.
Set against the rest of the country, OO 4263's record is 7 points better than the US average of 77.3%. That gap is worth roughly 67 fewer late arrivals for every thousand flights.
Key figures
On time
84.0%
Arrivals under 15 minutes late, of 282 completed flights
Avg delay
90 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
8.2%
National rate is 8.3%
These figures cover 282 flights between September 2025 and August 2026. Beyond the headline rate, 8.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 18:36. That slot held for 281 of the 282 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.
- Departs 17:25281 flights99.6%
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 17:25 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and OO 4263 runs 16 points better at 84.0%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
OO 4263 next to SLC to SGU
Every carrier on SLC to SGU combined arrived on time 91.4% of the time across 1,727 flights, so OO 4263 is 7 points behind it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4263thin sample | 282 | 84.0% | 90 min | 0.00% | B+ |
| All SkyWest Airlines on SLC–SGU | 1,727 | 91.4% | 81 min | 0.17% | A+ |
| All carriers on SLC–SGU | 1,727 | 91.4% | 81 min | 0.17% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 4263 quarter by quarter
OO 4263 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Apr–Jun 2026 at 80.2%, a swing of 13 points on roughly 56 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 202530 flights93.3%
- Oct–Dec 202562 flights83.9%
- Jan–Mar 202643 flights90.7%
- Apr–Jun 202691 flights80.2%
- Jul–Sep 202656 flights80.4%
Scale runs 70% to 100%.
By weekday, OO 4263 did best on Tuesday at 95.0% on time and worst on Sunday at 78.0%. Each day rests on about 40 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 4263 runs when it is late
OO 4263 often beats the schedule: 107 of 282 completed flights, 38%, arrived 15 minutes or more early. When OO 4263 is late it tends to be very late: 23 of its 45 late arrivals were an hour or more behind, and 10 were two hours or more.
- 15+ min early107 flights37.9%
- Within 15 min130 flights46.1%
- 15–29 min late14 flights5.0%
- 30–59 min late8 flights2.8%
- 1–2 hours late13 flights4.6%
- 2+ hours late10 flights3.5%
Scale runs 0% to 100%.
Share of 282 completed flights by arrival against schedule.
8 of 47 late departures made up the time and arrived on time, 17% of them. 6 flights left on time and still arrived late.
The worst days
Worst days for OO 4263
The latest arrival of the period was on 27 August 2026, 13 hours 35 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 August 2026 | 13 hours 35 minutes | Carrier |
| 13 August 2026 | 3 hours 42 minutes | Carrier |
| 17 October 2025 | 3 hours 27 minutes | Carrier |
| 26 April 2026 | 3 hours 8 minutes | Carrier |
| 4 October 2025 | 2 hours 50 minutes | Carrier |
Delay causes
Why OO 4263 runs late
Carrier accounts for 90% of the 4,046 delay minutes carriers reported here, and the remaining four split what is left.
- 90%Carrier
- 8%Extreme weather
- 2%National Airspace System
The largest share of delay minutes, 90%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,643 of the 4,046 delay minutes reported here. The split is drawn from 4,046 delay minutes reported on OO 4263.
Cancellations are rare at 0.00%, below the national 1.89% 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
8.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
Every one of the 282 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. 282 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: 7 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.
Related
Where to go next
- SLC to SGU, every carrier and departure
- SGU to SLC, the return direction
- SkyWest Airlines 4279 on the same route92.2%
- SkyWest Airlines 4321 on the same route92.1%
- SkyWest Airlines 4253 on the same route93.6%
- SkyWest Airlines 4308 on the same route94.2%
- 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
- Connecting flights: how much buffer the data says you need
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.