Flight number record

OO 4814

SkyWest Airlines · St. George to Phoenix

Route: SGU → PHX
Departs: 16:31
Flights: 276
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4814, 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 4814 lands a B+, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 276 flights, with a median arrival 5 minutes early.

On time

79.2%

Arrivals under 15 minutes late, of 274 completed flights

Avg delay

75 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

9.5%

National rate is 8.1%

These figures cover 276 flights between July 2025 and June 2026. Beyond the headline rate, 9.5% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When OO 4814 flies

OO 4814 flies SGU to PHX without a single fixed slot. Its most common scheduled departure was 16:31, used on 54 of 276 flights, with 16:45 (50 flights) and 19:22 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:3154 flights19.6%
Departs 16:4550 flights18.1%
Departs 19:2232 flights11.6%

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 16:31 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and OO 4814 runs 7 points better at 79.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 4814 next to SGU to PHX

Every carrier on SGU to PHX combined arrived on time 82.4% of the time across 900 flights, so OO 4814 is 3 points behind it. Across its whole network SkyWest Airlines managed 79.0%, close to this flight's figure.

OO 4814 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4814thin sample	276	79.2%	75 min	0.00%	B+
All SkyWest Airlines on SGU–PHX	900	82.4%	90 min	0.11%	B+
All carriers on SGU–PHX	900	82.4%	90 min	0.11%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4814 quarter by quarter

OO 4814 did not run the same all year. Its best quarter was Jan–Mar 2026 at 90.1% on time and its weakest Oct–Dec 2025 at 73.9%, a swing of 16 points on roughly 69 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 202574 flights77.0%
Oct–Dec 202570 flights73.9%
Jan–Mar 202672 flights90.1%
Apr–Jun 202660 flights75.0%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4814 did best on Monday at 88.2% on time and worst on Sunday at 67.3%. Each day rests on about 39 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 4814 runs late

One category carries most of the weight here. Carrier accounts for 42% of the 4,267 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
42%
Late-arriving aircraft
41%
National Airspace System
16%
Extreme weather
1%

41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 4,267 reported delay minutes here, that single category outweighs weather by 41 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 4,267 delay minutes reported on OO 4814.

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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.5% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

Every one of the 276 flights under OO 4814 in the data flew SGU to PHX. 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. 276 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 4814

For a booking, read OO 4814 as 79.2% on time with 0.00% cancelled over 276 flights. Those are rates from the past twelve months, not a forecast for any particular 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