Carrier performance at one airport
AA→LAS
American Airlines at Harry Reid International
- Departures
- 14,073
- Period
- July 2025 to June 2026
- Routes
- 9
- Rank here
- #4 of 11
American Airlines at Las Vegas lands a B, 4 points better than the national rate of 77.6%. Roughly one flight in five arrive 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 14,073 flights, of which Delta Air Lines flew 15,755 at 85.6% on time.
Measured against the airport rather than the country, American Airlines runs 4 points ahead of the 77.9% weighted average across all carriers at LAS. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.
Key figures
On time
81.5%
13,742 completed departures
Avg delay
95 min
Across delayed flights only
Cancelled
1.86%
At LAS, this carrier only
Rank here
#4
Of 11 carriers clearing the floor at LAS
These figures cover 14,000 flights between July 2025 and June 2026. The median arrival is 11 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.
Against the competition
Every carrier at LAS, ranked
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 85.6% of the time; Hawaiian Airlines manages 69.4%. Sample sizes sit next to every figure, because a two-point gap across 855 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 15,755 | 85.6% | 77 min | 1.00% | A |
| Allegiant Air | 7,115 | 83.8% | 74 min | 0.45% | B+ |
| Spirit Airlines | 8,396 | 82.8% | 77 min | 1.49% | B |
| American Airlines (this page) | 14,073 | 81.5% | 95 min | 1.86% | B |
| United Airlines | 15,170 | 80.7% | 67 min | 0.66% | B+ |
| SkyWest Airlines | 3,769 | 80.6% | 71 min | 1.01% | B |
| Alaska Airlines | 6,759 | 79.4% | 60 min | 1.02% | B |
| JetBlue Airways | 3,919 | 78.6% | 78 min | 1.91% | B |
| Frontier Airlines | 12,272 | 77.7% | 76 min | 1.25% | B |
| Southwest Airlines | 86,261 | 74.3% | 50 min | 0.58% | C+ |
| Hawaiian Airlines | 855 | 69.4% | 86 min | 0.47% | C+ |
The spread between Delta and Hawaiian 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.
Route by route
Where American Airlines flies from LAS
American Airlines operates 9 routes out of LAS with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| LAS to DFW · Dallas-Fort Worth | 3,987 | 80.3% | 104 min | 3.19% | B− |
| LAS to CLT · Charlotte | 2,082 | 88.6% | 108 min | 1.06% | A |
| LAS to ORD · Chicago | 1,848 | 76.2% | 99 min | 2.27% | B |
| LAS to PHX · Phoenix | 1,688 | 81.0% | 78 min | 0.83% | B+ |
| LAS to PHL · Philadelphia | 1,298 | 85.5% | 78 min | 1.77% | A |
| LAS to MIA · Miami | 1,277 | 84.1% | 85 min | 0.86% | B+ |
| LAS to LAX · Los Angeles | 1,060 | 75.3% | 93 min | 0.94% | B+ |
| LAS to JFK · New York | 459 | 78.6% | 107 min | 1.74% | B |
| LAS to DCA · Washington | 365 | 79.2% | 83 min | 1.37% | B |
Departure window
Best time of day for this operation
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–8am2,612 flights90.5%
- 8am–11am3,223 flights85.6%
- 11am–2pm3,216 flights77.3%
- 2pm–5pm1,696 flights68.5%
- 5pm–8pm877 flights72.6%
- 8pm–5am2,449 flights84.0%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 90.5% of the time, against 68.5% for the afternoon window. That is 22 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 3,223 flights scheduled in it.
Across the year
Seasonal pattern
July is the worst month at 73.5% on time, 13 points below April, the best at 86.5%. 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. May was the busiest month here, with 1,314 flights.
Delay causes
What holds this operation up
- 49%Late-arriving aircraft
- 36%Carrier
- 13%National Airspace System
- 2%Extreme weather
- 0%Security
49% 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 242,000 reported delay minutes here, that single category outweighs weather by 24 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 242,431 reported delay minutes.
Cancellations sit at 1.86% against a national 1.81%, which is ordinary. Diversions add another 0.49%.
7.3% 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 are the an hour and a half kind, which a normal layover absorbs.
14,073 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.
Put together: the calendar is the biggest lever here, not the carrier or the hour. April runs 86.5% on time and July 73.5%, a swing of 13 points. If the dates move at all, move them out of July before you think about anything else. 13,742 completed flights over 12 months sit behind that.
Common questions
American Airlines at LAS
How often is American Airlines at LAS delayed?
Roughly one flight in five arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 18.5% of the 14,073 flights in this analysis, against 22.4% nationally. Delayed flights are late by an hour and a half on average.
Which airline is most reliable on American Airlines at LAS?
Delta Air Lines leads at 85.6% on time across 15,755 flights. Hawaiian Airlines is at the other end on 69.4%, a gap of 16 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on American Airlines at LAS?
The 5am–8am departure window is the strongest at 90.5% on time. The 2pm–5pm window is the weakest at 68.5%, 22 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on American Airlines at LAS?
July is the weakest month at 73.5% on time, compared with 86.5% in April. Across the year that is 13 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- American Airlines network-wide record
- Harry Reid International (LAS) all carriers
- LAS to DFW route record80.3%
- LAS to CLT route record88.6%
- LAS to ORD route record76.2%
- LAS to PHX route record81.0%
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Updated monthly. How this data is collected.