Carrier performance at one airport
AA→LAS
American Airlines at Harry Reid International
- Departures
- 14,112
- Period
- June 2025 to May 2026
- Routes
- 9
- Rank here
- #4 of 11
American Airlines at Las Vegas lands a B, 4 points better than the national rate of 77.4%. About 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 14,112 flights, of which Delta Air Lines flew 15,922 at 85.0% on time.
Measured against the airport rather than the country, American Airlines runs 3 points ahead of the 78.2% 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
81.2%
13,793 completed departures
Avg delay
98 min
Across delayed flights only
Cancelled
1.82%
At LAS, this carrier only
Rank here
#4
Of 11 carriers clearing the floor at LAS
These figures cover 14,000 flights between June 2025 and May 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 85.0% of the time; Hawaiian Airlines manages 67.9%. Sample sizes sit next to every figure, because a two-point gap across 976 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 15,922 | 85.0% | 77 min | 1.06% | A |
| Allegiant Air | 7,221 | 83.8% | 73 min | 0.43% | B+ |
| Spirit Airlines | 10,027 | 81.9% | 71 min | 1.34% | B |
| American Airlines (this page) | 14,112 | 81.2% | 98 min | 1.82% | B |
| United Airlines | 15,192 | 81.1% | 67 min | 0.68% | B+ |
| SkyWest Airlines | 4,083 | 79.9% | 70 min | 0.96% | B+ |
| Alaska Airlines | 6,643 | 79.3% | 59 min | 1.05% | B |
| JetBlue Airways | 3,865 | 78.1% | 80 min | 1.89% | B |
| Frontier Airlines | 12,015 | 77.5% | 76 min | 1.29% | B |
| Southwest Airlines | 86,362 | 75.1% | 50 min | 0.58% | B+ |
| Hawaiian Airlines | 976 | 67.9% | 77 min | 0.51% | C+ |
The spread between Delta and Hawaiian is 17 points, wide enough that it should decide the booking. On a hundred trips that is 17 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 | 4,013 | 80.6% | 102 min | 3.04% | B− |
| LAS to CLT · Charlotte | 2,099 | 87.7% | 113 min | 1.19% | A |
| LAS to ORD · Chicago | 1,817 | 75.6% | 96 min | 2.04% | B |
| LAS to PHX · Phoenix | 1,693 | 81.6% | 81 min | 0.89% | B+ |
| LAS to MIA · Miami | 1,308 | 82.9% | 101 min | 0.99% | B+ |
| LAS to PHL · Philadelphia | 1,276 | 84.6% | 83 min | 1.88% | B |
| LAS to LAX · Los Angeles | 1,103 | 76.0% | 105 min | 0.82% | B+ |
| LAS to JFK · New York | 429 | 76.2% | 103 min | 1.63% | B |
| LAS to DCA · Washington | 365 | 78.3% | 105 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 17 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am2,598 flights90.9%
- 8am–11am3,280 flights84.9%
- 11am–2pm3,278 flights76.2%
- 2pm–5pm1,674 flights68.7%
- 5pm–8pm922 flights72.8%
- 8pm–5am2,360 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 90.9% of the time, against 68.7% 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.
Across the year
Seasonal pattern
June is the worst month at 72.7% on time, 14 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.
Delay causes
What holds this operation up
- 48%Late-arriving aircraft
- 37%Carrier
- 12%National Airspace System
- 2%Extreme weather
- 0%Security
48% 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 256,000 reported delay minutes here, that single category outweighs weather by 20 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.
Cancellations sit at 1.82% against a national 1.80%, which is ordinary. Diversions add another 0.44%.
7.4% of arrivals land an hour or more late, close to the national 8.2%. 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.
14,112 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 June 72.7%, a swing of 14 points. If the dates move at all, move them out of June before you think about anything else.
Common questions
American Airlines at LAS
How often is American Airlines at LAS delayed?
About 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 18.8% of the 14,112 flights in this analysis, against 22.6% 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 85.0% on time across 15,922 flights. Hawaiian Airlines is at the other end on 67.9%, a gap of 17 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 90.9% on time. The 2pm–5pm window is the weakest at 68.7%, 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 June delays on American Airlines at LAS?
June is the weakest month at 72.7% on time, compared with 86.5% in April. Across the year that is 14 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
Source: US DOT Bureau of Transportation Statistics, on-time performance data, June 2025 to May 2026. Updated monthly. How this data is collected.