Carrier route record
AAPHL→LAS
American Airlines · Philadelphia to Las Vegas
- Flights
- 1,293
- Period
- July 2025 to June 2026
- Share of route
- 87%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with American Airlines.
American on PHL to LAS 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 a little over an hour behind schedule. That rests on 1,293 flights, with a median arrival 5 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate American on PHL 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
75.3%
Arrivals under 15 minutes late, of 1,266 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
1.78%
National rate is 1.81%
Whole route
75.4%
Every carrier on PHL to LAS, 1,489 flights
These figures cover 1,293 flights between July 2025 and June 2026. Beyond the headline rate, 9.2% 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 PHL to LAS
American flew 1,293 of the 1,489 flights on PHL to LAS, most of the route. Its 75.3% on time is about level with the route as a whole at 75.4%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Spirit at 81.5% to Frontier at 72.1%. 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 |
|---|---|---|---|---|---|
| Spirit Airlinesthin sample | 82 | 81.5% | 68 min | 1.22% | B |
| American Airlines (this page) | 1,293 | 75.3% | 75 min | 1.78% | B |
| Frontier Airlinesthin sample | 114 | 72.1% | 103 min | 1.75% | C |
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 half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am418 flights85.4%
- 11am–2pm20 flights—
- 2pm–5pm350 flights72.7%
- 5pm–8pm323 flights69.2%
- 8pm–5am182 flights67.6%
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 85.4% of the time, against 67.6% for the overnight 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 8am–11am window is the busiest, with 418 flights scheduled in it.
Across the year
American on PHL to LAS through the year
July is the worst month at 54.5% on time, 30 points below May, the best at 84.3%. 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. October was the busiest month here, with 145 flights.
Across the week, Monday is the strongest day at 80.4% on time and Sunday the weakest at 68.9%. 12 points is a smaller lever than departure hour, but it is free.
Delay causes
Why American runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 23,000 reported delay minutes.
- 40%Carrier
- 30%Late-arriving aircraft
- 20%National Airspace System
- 9%Extreme weather
- 1%Security
The largest share of delay minutes, 40%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 9,335 of the 23,000 delay minutes reported here. The split is drawn from 23,408 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 85.4% on time here.
Cancellations sit at 1.78% against a national 1.81%, which is ordinary. Diversions add another 0.31%.
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. 9.2% 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 2,177 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 is a different operation and performs like one: it runs 85.5% on time across 1,298 flights, 10 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 10 points of difference.
The sample behind these figures is 1,293 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking American on PHL to LAS
Put together: the calendar is the biggest lever here, not the carrier or the hour. May runs 84.3% on time and July 54.5%, a swing of 30 points. If the dates move at all, move them out of July before you think about anything else. 1,266 completed flights over 12 months sit behind that.
Related
Where to go next
- PHL to LAS, every carrier
- American on LAS to PHL, the return leg
- Frontier Airlines on PHL to LAS72.1%
- American Airlines network-wide record
- Philadelphia International (PHL) delay statistics
- Harry Reid International (LAS) delay statistics
- The best time of day to fly, according to 7.04 million flight records
- 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.