Carrier route record

OORNO→SLC

SkyWest Airlines · Reno to Salt Lake City

Flights: 465
Period: July 2025 to June 2026
Share of route: 39%
Carriers: 2

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

SkyWest on RNO to SLC 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 12 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 465 flights, with a median arrival 12 minutes early.

Set against the rest of the country, SkyWest's RNO to SLC record is 12 points better than the US average of 77.6%. That gap is worth roughly 119 fewer late arrivals for every thousand flights.

On time

89.5%

Arrivals under 15 minutes late, of 465 completed flights

Avg delay

71 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

Whole route

90.1%

Every carrier on RNO to SLC, 1,195 flights

These figures cover 465 flights between July 2025 and June 2026. The median arrival is 12 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 RNO to SLC

SkyWest flew 465 of the 1,195 flights on RNO to SLC, about 39% of it. Its 89.5% on time is about level with the route as a whole at 90.1%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 90.5% to SkyWest at 89.5%.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on RNO to SLC
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	730	90.5%	99 min	0.27%	A+
SkyWest Airlines (this page)	465	89.5%	71 min	0.00%	A+

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 10 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am—
8am–11am108 flights97.2%
11am–2pm—
2pm–5pm1 flights—
5pm–8pm356 flights87.1%
8pm–5am—

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

Book the morning departure. Flights leaving between 8am–11am arrive on time 97.2% of the time, against 87.1% for the evening window. That is 10 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 356 flights scheduled in it.

Across the year

SkyWest on RNO to SLC through the year

Darker means more delays. Figures are on-time percentages.June best, July worst

July is the worst month at 80.0% on time, 14 points below June, the best at 94.1%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 55 flights.

Across the week, Sunday is the strongest day at 97.1% on time and Thursday the weakest at 83.3%. 14 points is a smaller lever than departure hour, but it is free.

Delay causes

Why SkyWest runs late on this route

One category carries most of the weight here. Carrier accounts for 81% of the 3,462 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
81%
Extreme weather
14%
National Airspace System
5%

Extreme weather accounts for 14% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.2 times the usual weather exposure. The split is drawn from 3,462 reported delay minutes.

The largest share of delay minutes, 81%, 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 2,794 of the 3,462 delay minutes reported here.

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 stage length

What a delay here costs

Badly late arrivals are rare here: only 2.2% 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 422 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 runs 91.4% on time across 465 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 465 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 RNO to SLC

Put together: treat all of this as provisional. 465 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 89.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 465 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