Route profile
PHL→LAS
Flight reliability, delays and best times to fly from Philadelphia to Las Vegas, 2,176 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 21% of comparable major US routes (4,598 compared)
Calculated from 5,015 flights. How this is calculated · What counts as on time
PHL → LAS arrives on time 74.4% of the time; the return trip, LAS → PHL, arrives on time 80.5% of the time, a 6.2-point gap between the two directions of the same city pair.
PHL → LAS spends 31.1 minutes on the ground on a 2,176-mile trip: 22.5 minutes from pushback to wheels-up at PHL and 8.6 minutes from touchdown to gate at LAS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
Reliability here swings unusually widely by season, a wider month-to-month spread than 92% of 3,357 comparable routes.
84.4% on time in a typical October, against 59.7% in July.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 3,357 in the comparison.
What sets this route apart
Where PHL to LAS differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
PHL to LAS struggles most at 6 PM: 61.6% of its flights scheduled then arrive on time, 8.1 points behind the 69.7% on routes of similar length at the same hour. Against all other routes the gap is 7 points.
PHL to LAS is at its best against routes of similar length for flights scheduled at 8 AM: 86.7% arrive on time, 3.1 points ahead of the 83.6% those routes manage at that hour.
Tuesday is the day PHL to LAS slips furthest against routes of similar length, 76.2% on time where they average 82.3%, 6.1 points lower. Against all other routes the gap is 5.4 points.
In August, PHL to LAS runs 13.5 points below routes of similar length, 63.7% on time to 77.2%. Against all other routes the gap is 12.8 points.
American Airlines’ flights on PHL to LAS arrive on time 74.6% of the time, 4.1 points below the 78.7% it manages on its routes of similar length.
PHL to LAS against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 6 PM departures | 61.6% | routes of similar length | 69.7% | −8.1 pts | 633 here, 58,786 there |
| Hour: 8 AM departures | 86.7% | routes of similar length | 83.6% | +3.1 pts | 900 here, 94,895 there |
| Weekday: Tuesday | 76.2% | routes of similar length | 82.3% | −6.1 pts | 676 here, 149,712 there |
| Month: August | 63.7% | routes of similar length | 77.2% | −13.5 pts | 430 here, 95,792 there |
| Airline: American Airlines | 74.6% | routes of similar length | 78.7% | −4.1 pts | 3,645 here, 232,951 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 2,176 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
Why PHL → LAS flights are cancelled
July 2023 – July 2026
PHL → LAS cancelled 79 of 5,015 scheduled flights — about 1 in every 63. The reason filed most often was extreme weather, 73.4% of the cancellations coded on this route — about 1 in every 86 scheduled flights.
Share of cancellations
Of 79 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
58 cancellations, 73.4% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
16 cancellations, 20.3% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
5 cancellations, 6.3% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
79 coded cancellations were recorded on PHL → LAS; the section appears from 50.
When it goes wrong
July 2023 – July 2026
59 min late
against a median of 5 min early
PHL → LAS has an average that understates its risk: a typical arrival is 5 min early, but the worst tenth are 64 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 5,015 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at LAS after arriving from PHL.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 40% | Likely to miss |
| 45 min | 25% | High risk |
| 60 min | 18% | High risk |
| 90 min | 9.8% | Some risk |
| 120 min | 6.2% | Some risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.58% of the time and diverts 0.26% of the time, which a late arrival never shows up in.
Chance of missing is the share of 4,923 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 59 minutes late (90th-percentile gate arrival delay), over 5,015 operations.
Any other layover length: connection checker.
Best time to fly
PHL → LAS flights departing 5–9 AM arrived on time 86.3% of the time, against 63.8% for 6–9 PM departures, a gap of 22.5 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 86.8% on time from 132 flights
- 7 AM: 84.2% on time from 322 flights
- 8 AM: 86.7% on time from 914 flights
- 9 AM: 82.1% on time from 350 flights
- 10 AM: 84.0% on time from 163 flights
- 11 AM: 70.8% on time from 132 flights
- 12 PM to 2 PM: too few flights to score
- 3 PM: 70.0% on time from 548 flights
- 4 PM: 66.5% on time from 402 flights
- 5 PM: 72.0% on time from 240 flights
- 6 PM: 61.6% on time from 649 flights
- 7 PM: 64.3% on time from 509 flights
- 8 PM: 70.2% on time from 172 flights
- 9 PM: 76.5% on time from 232 flights
- 10 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why PHL → LAS runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for PHL → LAS. Only delays of 15 minutes or more are attributed. What the five causes mean
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| American Airlines | 3,708 | 74.6% | 1.43% | -5 min | 9.4% |
| Spirit Airlines | 799 | 78.4% | 1.75% | -10 min | 8.2% |
| Frontier Airlines | 508 | 66.0% | 2.36% | -2 min | 16.6% |
American Airlines flew 73.9% of the 5,015 flights listed.
Spirit Airlines arrived on time 12.4 percentage points more often than Frontier Airlines on this route.
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Sunday the least, a gap of 6.0 percentage points.
By month
- Jan: 76.9%
- Feb: 78.2%
- Mar: 79.9%
- Apr: 77.9%
- May: 76.3%
- Jun: 67.4%
- Jul: 59.7%
- Aug: 63.7%
- Sep: 75.4%
- Oct: 84.4%
- Nov: 82.8%
- Dec: 81.4%
July is historically the weakest month and October the strongest, a spread of 24.7 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 53.7% from 154 flights
- August 2023: 52.3% from 153 flights
- September 2023: 69.8% from 171 flights
- October 2023: 86.7% from 128 flights
- November 2023: too few flights to score (112)
- December 2023: too few flights to score (85)
- January 2024: too few flights to score (93)
- February 2024: too few flights to score (96)
- March 2024: too few flights to score (115)
- April 2024: 86.7% from 120 flights
- May 2024: 65.9% from 136 flights
- June 2024: 69.9% from 148 flights
- July 2024: 60.3% from 181 flights
- August 2024: 59.1% from 132 flights
- September 2024: 78.7% from 169 flights
- October 2024: 83.6% from 159 flights
- November 2024: 85.4% from 137 flights
- December 2024: 86.1% from 139 flights
- January 2025: 82.5% from 127 flights
- February 2025: too few flights to score (119)
- March 2025: 74.8% from 147 flights
- April 2025: 74.5% from 193 flights
- May 2025: 77.3% from 214 flights
- June 2025: 68.5% from 149 flights
- July 2025: 58.3% from 154 flights
- August 2025: 78.9% from 152 flights
- September 2025: 78.4% from 125 flights
- October 2025: 83.3% from 162 flights
- November 2025: too few flights to score (91)
- December 2025: too few flights to score (98)
- January 2026: too few flights to score (85)
- February 2026: too few flights to score (79)
- March 2026: too few flights to score (93)
- April 2026: 75.3% from 154 flights
- May 2026: 84.2% from 153 flights
- June 2026: 63.8% from 143 flights
- July 2026: 66.7% from 149 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 76.2% against 75.0% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 5,015 PHL → LAS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed