Carrier route record

OOLAX→LAS

SkyWest Airlines · Los Angeles to Las Vegas

Flights: 311
Period: July 2025 to June 2026
Share of route: 4%
Carriers: 8

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on LAX to LAS earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 50 minutes. That rests on 311 flights. The strongest carrier on the route with a full sample, Spirit Airlines, flew 640 at 84.9% on time.

Set against the rest of the country, SkyWest's LAX to LAS record is 10 points better than the US average of 77.6%. That gap is worth roughly 97 fewer late arrivals for every thousand flights.

On time

87.3%

Arrivals under 15 minutes late, of 306 completed flights

Avg delay

49 min

Across delayed arrivals only, not all flights

Cancelled

1.61%

National rate is 1.81%

Whole route

76.5%

Every carrier on LAX to LAS, 8,319 flights

These figures cover 311 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.

Carrier by carrier

SkyWest against every carrier on LAX to LAS

SkyWest flew 311 of the 8,319 flights on LAX to LAS, about 4% of it. Its 87.3% on time is 11 points better than the route as a whole, which runs 76.5%. Ranked by on-time rate it is first of eight carriers on the route, where the range runs from SkyWest at 87.3% to Alaska at 64.7%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. Spirit Airlines arrives on time 84.9% of the time; American Airlines manages 68.5%. Sample sizes sit next to every figure, because a two-point gap across 1,064 flights means less than a ten-point one.

On-time performance by carrier on LAX to LAS
Airline	Flights	On time	Avg delay	Cancelled	Grade
SkyWest Airlines (this page)thin sample	311	87.3%	49 min	1.61%	A
Spirit Airlines	640	84.9%	76 min	0.94%	B+
United Airlines	1,572	83.6%	58 min	0.51%	B+
Delta Air Lines	1,735	78.5%	59 min	0.81%	B+
Southwest Airlines	2,386	72.2%	53 min	0.59%	C+
Frontier Airlines	594	70.0%	79 min	1.35%	C
American Airlines	1,064	68.5%	87 min	0.85%	C+
Alaska Airlinesthin sample	17	64.7%	28 min	0.00%	D+

The spread between Spirit and American is 16 points, wide enough that it should decide the booking. On a hundred trips that is 16 more arrivals inside the on-time window.

Departure window

When SkyWest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 23 points, against 16 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am—
8am–11am80 flights96.0%
11am–2pm6 flights—
2pm–5pm112 flights86.6%
5pm–8pm83 flights85.5%
8pm–5am30 flights73.3%

Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.

Book the morning departure. Flights leaving between 8am–11am arrive on time 96.0% of the time, against 73.3% for the overnight window. That is 23 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 112 flights scheduled in it.

Across the year

SkyWest on LAX to LAS through the year

Jul–Sep 202565 flights87.7%
Oct–Dec 202588 flights85.5%
Jan–Mar 202661 flights80.3%
Apr–Jun 202697 flights92.8%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 87.3% on time across 311 flights.

SkyWest on LAX to LAS did not run the same all year. Its best quarter was Apr–Jun 2026 at 92.8% on time and its weakest Jan–Mar 2026 at 80.3%, a swing of 13 points on roughly 78 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.

Across the week, Tuesday is the strongest day at 94.0% on time and Sunday the weakest at 78.7%. 15 points is a smaller lever than departure hour, but it is free.

Delay causes

Why SkyWest runs late on this route

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 1,911 reported delay minutes.

Late-arriving aircraft
37%
National Airspace System
31%
Carrier
30%
Security
1%

37% 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 1,911 reported delay minutes here, that single category outweighs weather by 37 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 1,911 reported delay minutes.

The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 96.0% on time here.

Cancellations sit at 1.61% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

Badly late arrivals are rare here: only 3.9% 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.

At 236 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8am–11am window matters as much as it does.

The return leg is a different operation and performs like one: it runs 84.0% on time across 312 flights, 3 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 3 points of difference.

One caution: this is a thin sample. 311 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 SkyWest on LAX to LAS

Put together: treat all of this as provisional. 311 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 87.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 306 completed flights over 12 months sit behind that.

Where to go next

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