Carrier route record

F9LAS→CLE

Frontier Airlines · Las Vegas to Cleveland

Flights: 612
Period: July 2025 to June 2026
Share of route: 62%
Carriers: 4

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

Frontier on LAS to CLE lands a B, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 612 flights, with a median arrival 10 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate Frontier on LAS to CLE from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

77.3%

Arrivals under 15 minutes late, of 604 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

1.31%

National rate is 1.81%

Whole route

76.8%

Every carrier on LAS to CLE, 984 flights

These figures cover 612 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

Frontier against every carrier on LAS to CLE

Frontier flew 612 of the 984 flights on LAS to CLE, most of the route. Its 77.3% on time is about level with the route as a whole at 76.8%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Delta at 100.0% to Southwest at 75.9%. Two 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 LAS to CLE
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Linesthin sample	1	100.0%	—	0.00%	A+
American Airlinesthin sample	2	100.0%	—	0.00%	A+
Frontier Airlines (this page)	612	77.3%	67 min	1.31%	B
Southwest Airlines	369	75.9%	37 min	0.00%	B+

Flight by flight

Frontier flight numbers on LAS to CLE

F9 323208:1680.7% · 346 flights

Departure window

When Frontier runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 22 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–8am29 flights—
8am–11am188 flights80.1%
11am–2pm101 flights83.0%
2pm–5pm34 flights60.6%
5pm–8pm—
8pm–5am260 flights73.0%

Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.

The best window here is not the first bank but the 11am–2pm slot at 83.0% on time, ahead of 2pm–5pm at 60.6%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8pm–5am window is the busiest, with 260 flights scheduled in it.

Across the year

Frontier on LAS to CLE through the year

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

June is the worst month at 67.2% on time, 22 points below September, the best at 89.1%. 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. March was the busiest month here, with 62 flights.

Across the week, Wednesday is the strongest day at 90.6% on time and Sunday the weakest at 66.3%. 24 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Frontier runs late on this route

One category carries most of the weight here. Carrier accounts for 47% of the 9,134 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
47%
Late-arriving aircraft
40%
National Airspace System
11%
Extreme weather
1%

40% 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 9,134 reported delay minutes here, that single category outweighs weather by 31 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 9,134 reported delay minutes.

The largest share of delay minutes, 47%, 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 4,295 of the 9,134 delay minutes reported here.

Cancellations sit at 1.31% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

7.1% 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 about an hour, which a normal layover absorbs.

At 1,824 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The return leg runs 76.3% on time across 609 flights, within about 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. 612 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 Frontier on LAS to CLE

Put together: treat all of this as provisional. 612 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 77.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 604 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