Carrier route record
F9LAX→LAS
Frontier Airlines · Los Angeles to Las Vegas
- Flights
- 594
- Period
- July 2025 to June 2026
- Share of route
- 7%
- Carriers
- 8
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on LAX to LAS sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 594 flights. The strongest carrier on the route with a full sample, Spirit Airlines, flew 640 at 84.9% on time.
Spirit Airlines is the most reliable of the five carriers covered here at 84.9% on time across 640 flights.
Key figures
On time
70.0%
Arrivals under 15 minutes late, of 586 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
1.35%
National rate is 1.81%
Whole route
76.5%
Every carrier on LAX to LAS, 8,319 flights
These figures cover 594 flights between July 2025 and June 2026. Beyond the headline rate, 12.5% 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 LAX to LAS
Frontier flew 594 of the 8,319 flights on LAX to LAS, about 7% of it. Its 70.0% on time is 7 points worse than the route as a whole, which runs 76.5%. Ranked by on-time rate it is number six of eight carriers on the route, where the range runs from SkyWest at 87.3% to Alaska at 64.7%. Two 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlinesthin 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 (this page) | 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.
Flight by flight
Frontier flight numbers on LAX to LAS
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 16 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am3 flights—
- 11am–2pm148 flights80.3%
- 2pm–5pm222 flights68.6%
- 5pm–8pm80 flights75.6%
- 8pm–5am141 flights58.0%
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 58.0% on time, against 80.3% for the 11am–2pm slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 222 flights scheduled in it.
Across the year
Frontier on LAX to LAS through the year
December is the weak month at 57.4% on time, against 82.5% in March. 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. June was the busiest month here, with 66 flights.
Across the week, Wednesday is the strongest day at 88.3% on time and Thursday the weakest at 59.8%. 29 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 53% of the 14,000 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.
- 53%Late-arriving aircraft
- 27%National Airspace System
- 18%Carrier
- 2%Extreme weather
53% 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 14,000 reported delay minutes here, that single category outweighs weather by 34 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 13,852 reported delay minutes.
Cancellations sit at 1.35% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
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. 12.5% 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 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 11am–2pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 80.6% on time across 593 flights, 11 points above 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 11 points of difference.
One caution: this is a thin sample. 594 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 LAX to LAS
Put together: treat all of this as provisional. 594 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 70.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 586 completed flights over 12 months sit behind that.
Related
Where to go next
- LAX to LAS, every carrier
- Frontier on LAS to LAX, the return leg
- SkyWest Airlines on LAX to LAS87.3%
- Spirit Airlines on LAX to LAS84.9%
- United Airlines on LAX to LAS83.6%
- Delta Air Lines on LAX to LAS78.5%
- Southwest Airlines on LAX to LAS72.2%
- American Airlines on LAX to LAS68.5%
- Frontier Airlines network-wide record
- Los Angeles International (LAX) delay statistics
- Harry Reid International (LAS) delay statistics
- Why the first flight of the morning is statistically safest
- Same route, different airline: where the carrier you pick matters most
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.