Carrier route record

NKRNO→LAS

Spirit Airlines · Reno to Las Vegas

Flights: 542
Period: July 2025 to June 2026
Share of route: 13%
Carriers: 3

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

Spirit on RNO 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 a little over an hour. That rests on 542 flights, with a median arrival 15 minutes early.

Set against the rest of the country, Spirit's RNO to LAS record is 10 points better than the US average of 77.6%. That gap is worth roughly 98 fewer late arrivals for every thousand flights.

On time

87.4%

Arrivals under 15 minutes late, of 530 completed flights

Avg delay

82 min

Across delayed arrivals only, not all flights

Cancelled

2.21%

National rate is 1.81%

Whole route

82.1%

Every carrier on RNO to LAS, 4,019 flights

These figures cover 542 flights between July 2025 and June 2026. The median arrival is 15 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

Spirit against every carrier on RNO to LAS

Spirit flew 542 of the 4,019 flights on RNO to LAS, about 13% of it. Its 87.4% on time is 5 points better than the route as a whole, which runs 82.1%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Spirit at 87.4% to Frontier at 70.2%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

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 LAS
Airline	Flights	On time	Avg delay	Cancelled	Grade
Spirit Airlines (this page)	542	87.4%	82 min	2.21%	A
Southwest Airlines	3,213	82.2%	57 min	0.56%	B+
Frontier Airlinesthin sample	264	70.2%	98 min	2.27%	C

Departure window

When Spirit runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 13 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–8am109 flights93.5%
8am–11am77 flights89.6%
11am–2pm158 flights88.5%
2pm–5pm70 flights85.1%
5pm–8pm13 flights—
8pm–5am115 flights80.9%

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

Book the early departure. Flights leaving between 5am–8am arrive on time 93.5% of the time, against 80.9% for the overnight window. That is 13 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 158 flights scheduled in it.

Across the year

Spirit on RNO to LAS through the year

Darker means more delays. Figures are on-time percentages.January best, March worst

Delays peak in March, when the on-time rate falls to 76.3%. January is the strongest month at 98.1%. Moving a flexible trip across that boundary buys 22 points. March was the busiest month here, with 62 flights.

Across the week, Wednesday is the strongest day at 98.5% on time and Friday the weakest at 78.0%. 21 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Spirit runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 57% of the 5,477 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.

Late-arriving aircraft
57%
National Airspace System
34%
Carrier
8%
Extreme weather
1%

57% 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 5,477 reported delay minutes here, that single category outweighs weather by 57 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 5,477 reported delay minutes.

34% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,865 minutes out of 5,477, against a national NAS share of 21%.

Cancellations sit at 2.21% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

6.0% 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.

At 345 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 5am–8am window matters as much as it does.

The return leg runs 87.8% on time across 541 flights, within half a point 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. 542 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 Spirit on RNO to LAS

Put together: treat all of this as provisional. 542 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 87.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 530 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