Carrier route record
F9CLE→LAS
Frontier Airlines · Cleveland to Las Vegas
- Flights
- 609
- 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 CLE to LAS lands a B, about a point worse than the national rate of 77.6%. About one flight in four arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 609 flights, with a median arrival 6 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate Frontier on CLE to LAS from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
76.3%
Arrivals under 15 minutes late, of 600 completed flights
Avg delay
90 min
Across delayed arrivals only, not all flights
Cancelled
1.31%
National rate is 1.81%
Whole route
77.9%
Every carrier on CLE to LAS, 981 flights
These figures cover 609 flights between July 2025 and June 2026. Beyond the headline rate, 9.5% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Frontier against every carrier on CLE to LAS
Frontier flew 609 of the 981 flights on CLE to LAS, most of the route. Its 76.3% on time is 2 points worse than the route as a whole, which runs 77.9%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from American at 100.0% to Frontier at 76.3%. 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlinesthin sample | 2 | 100.0% | — | 0.00% | A+ |
| Delta Air Linesthin sample | 1 | 100.0% | — | 0.00% | A+ |
| Southwest Airlines | 369 | 80.3% | 55 min | 0.54% | B+ |
| Frontier Airlines (this page) | 609 | 76.3% | 90 min | 1.31% | B |
Flight by flight
Frontier flight numbers on CLE to LAS
Departure window
When Frontier runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 609 flights.
- 5am–8am119 flights73.9%
- 8am–11am162 flights79.5%
- 11am–2pm9 flights—
- 2pm–5pm103 flights74.8%
- 5pm–8pm91 flights80.0%
- 8pm–5am125 flights74.0%
Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is the strongest at 80.0% on time. The full set of windows spans 6 points.
Across the year
Frontier on CLE to LAS through the year
February is the weak month at 52.8% on time, against 89.4% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 61 flights.
Across the week, Saturday is the strongest day at 83.2% on time and Sunday the weakest at 65.9%. 17 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. Late-arriving aircraft accounts for 51% of the 13,000 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.
- 51%Late-arriving aircraft
- 31%Carrier
- 16%National Airspace System
- 3%Extreme weather
51% 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 13,000 reported delay minutes here, that single category outweighs weather by 19 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 12,731 reported delay minutes.
Cancellations sit at 1.31% against a national 1.81%, which is ordinary. Diversions add another 0.16%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.5% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
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 77.3% on time across 612 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. 609 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 CLE to LAS
Put together: treat all of this as provisional. 609 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 76.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 600 completed flights over 12 months sit behind that.
Related
Where to go next
- CLE to LAS, every carrier
- Frontier on LAS to CLE, the return leg
- Southwest Airlines on CLE to LAS80.3%
- Frontier Airlines network-wide record
- Cleveland Hopkins International (CLE) delay statistics
- Harry Reid International (LAS) delay statistics
- Why the first flight of the morning is statistically safest
- How often a connection fails at the major US hubs
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.