Flight number record

OO 3741

SkyWest Airlines · Las Vegas to San Diego

Route: LAS → SAN
Departs: 15:00
Flights: 321
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3741, 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 3741 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 321 flights, with a median arrival 6 minutes early.

On time

79.4%

Arrivals under 15 minutes late, of 321 completed flights

Avg delay

76 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

6.5%

National rate is 8.1%

These figures cover 321 flights between July 2025 and June 2026. The median arrival is 6 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 3741 flies

OO 3741 flies LAS to SAN without a single fixed slot. Its most common scheduled departure was 15:00, used on 56 of 321 flights, with 12:59 (55 flights) and 16:10 (40 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 15:0056 flights17.4%
Departs 12:5955 flights17.1%
Departs 16:1040 flights12.5%

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 15:00 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and OO 3741 runs 7 points better at 79.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 3741 next to LAS to SAN

Every carrier on LAS to SAN combined arrived on time 66.7% of the time across 5,877 flights, so OO 3741 is 13 points ahead of it. SkyWest flew 1,492 flights on the same city pair under all its flight numbers, including this one, and those ran 74.6% on time. Across its whole network SkyWest Airlines managed 79.0%, close to this flight's figure.

OO 3741 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3741thin sample	321	79.4%	76 min	0.00%	B+
All SkyWest Airlines on LAS–SAN	1,492	74.6%	63 min	1.34%	C
All carriers on LAS–SAN	5,877	66.7%	55 min	1.11%	C
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 3741 quarter by quarter

Quarter by quarter OO 3741 held fairly steady: 79.1% in Jul–Sep 2025, 81.4% in Oct–Dec 2025, 76.9% in Jan–Mar 2026 and 79.7% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202591 flights79.1%
Oct–Dec 202586 flights81.4%
Jan–Mar 202665 flights76.9%
Apr–Jun 202679 flights79.7%

Scale runs 70% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, OO 3741 did best on Wednesday at 88.9% on time and worst on Friday at 62.2%. Each day rests on about 46 flights, so a gap of 27 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 3741 runs late

One category carries most of the weight here. Carrier accounts for 64% of the 4,987 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
64%
National Airspace System
27%
Extreme weather
9%

The largest share of delay minutes, 64%, 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 3,176 of the 4,987 delay minutes reported here. The split is drawn from 4,987 delay minutes reported on OO 3741.

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

6.5% 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.

The same number turns up on one other city pair in the data, including SAN to LAS (216), but none flew often enough under OO 3741 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAS to SAN only.

One caution: this is a thin sample. 321 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 3741

For a booking, read OO 3741 as 79.4% on time with 0.00% cancelled over 321 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