Carrier route record
AALAS→LAX
American Airlines · Las Vegas to Los Angeles
- Flights
- 1,060
- Period
- July 2025 to June 2026
- Share of route
- 13%
- Carriers
- 8
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with American Airlines.
American on LAS to LAX sits in the middle of the pack with a B+. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 1,060 flights. The strongest carrier on the route with a full sample, Spirit Airlines, flew 646 at 87.3% on time.
Spirit Airlines is the most reliable of the five carriers covered here at 87.3% on time across 646 flights.
Key figures
On time
75.3%
Arrivals under 15 minutes late, of 1,050 completed flights
Avg delay
93 min
Across delayed arrivals only, not all flights
Cancelled
0.94%
National rate is 1.81%
Whole route
78.8%
Every carrier on LAS to LAX, 8,325 flights
These figures cover 1,060 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
American against every carrier on LAS to LAX
American flew 1,060 of the 8,325 flights on LAS to LAX, about 13% of it. Its 75.3% on time is 4 points worse than the route as a whole, which runs 78.8%. Ranked by on-time rate it is number six of eight carriers on the route, where the range runs from Spirit at 87.3% to Southwest at 68.2%. 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 87.3% of the time; Southwest Airlines manages 68.2%. Sample sizes sit next to every figure, because a two-point gap across 2,386 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Spirit Airlines | 646 | 87.3% | 62 min | 0.93% | A+ |
| United Airlines | 1,574 | 86.2% | 55 min | 0.70% | A+ |
| SkyWest Airlinesthin sample | 312 | 84.0% | 66 min | 1.60% | B |
| Delta Air Lines | 1,737 | 84.0% | 72 min | 0.92% | B+ |
| Frontier Airlines | 593 | 80.6% | 57 min | 0.17% | B+ |
| American Airlines (this page) | 1,060 | 75.3% | 93 min | 0.94% | B+ |
| Alaska Airlinesthin sample | 17 | 70.6% | 30 min | 0.00% | C+ |
| Southwest Airlines | 2,386 | 68.2% | 47 min | 0.38% | C+ |
The spread between Spirit and Southwest is 19 points, wide enough that it should decide the booking. On a hundred trips that is 19 more arrivals inside the on-time window.
Flight by flight
American flight numbers on LAS to LAX
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against 19 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am204 flights84.7%
- 8am–11am125 flights82.9%
- 11am–2pm304 flights73.5%
- 2pm–5pm62 flights66.7%
- 5pm–8pm350 flights71.8%
- 8pm–5am15 flights—
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 84.7% of the time, against 66.7% for the afternoon window. That is 18 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 350 flights scheduled in it.
Across the year
American on LAS to LAX through the year
June is the worst month at 59.2% on time, 23 points below April, the best at 82.6%. 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. January was the busiest month here, with 110 flights.
Across the week, Tuesday is the strongest day at 84.0% on time and Sunday the weakest at 70.4%. 14 points is a smaller lever than departure hour, but it is free.
Delay causes
Why American runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 62% of the 24,000 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.
- 62%Late-arriving aircraft
- 27%Carrier
- 10%National Airspace System
- 1%Extreme weather
62% 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 24,000 reported delay minutes here, that single category outweighs weather by 62 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 23,984 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 84.7% on time here.
Cancellations sit at 0.94% 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. 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 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 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 68.5% on time across 1,064 flights, 7 points below 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 7 points of difference.
One caution: this is a thin sample. 1,060 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 American on LAS to LAX
Put together: treat all of this as provisional. 1,060 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 75.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 1,050 completed flights over 12 months sit behind that.
Related
Where to go next
- LAS to LAX, every carrier
- American on LAX to LAS, the return leg
- Spirit Airlines on LAS to LAX87.3%
- United Airlines on LAS to LAX86.2%
- SkyWest Airlines on LAS to LAX84.0%
- Delta Air Lines on LAS to LAX84.0%
- Frontier Airlines on LAS to LAX80.6%
- Southwest Airlines on LAS to LAX68.2%
- American Airlines network-wide record
- Harry Reid International (LAS) delay statistics
- Los Angeles International (LAX) delay statistics
- Same route, different airline: where the carrier you pick matters most
- Why the first flight of the morning is statistically safest
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.