Philadelphia (PHL) to Las Vegas (LAS): On-Time Performance
Data through July 2026
When you fly PHL to LAS matters as much as anything else about the booking: the route swung from 86% on-time in December 2024 to just 58% in July 2025. Across the full period the route averages 75% on-time against a national 78%. Morning departures also hold up better than evening ones (84% vs 68%), which matters most in the rough months.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 1.9%
- Flights/day
- 4.1
- last 12 months
- Duration
- 5h 29m
- scheduled
- Distance
- 2,177 mi
Best airline from PHL to LAS
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 81% | 15 min | 2.3% | 438 |
| American Airlines | 74% | 20 min | 1.6% | 2,700 |
| Frontier Airlines | 70% | 29 min | 3.0% | 366 |
Monthly on-time trend
Best time to fly from PHL to LAS
Aim for departures around 6 a.m. (87% on-time); avoid 7 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 20 min |
| Tuesdaybest | 77% | 15 min |
| Wednesday | 77% | 19 min |
| Thursday | 73% | 22 min |
| Friday | 73% | 20 min |
| Saturday | 76% | 20 min |
| Sunday | 71% | 25 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft32%
- Airline operations38%
- National airspace system24%
- Weather7%
Frequently asked questions
- How often are flights from PHL to LAS delayed?
- 25% of PHL–LAS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 20 minutes.
- Which airline is most reliable from PHL to LAS?
- Spirit Airlines has the best on-time record on this route at 81%, based on 438 flights. 3 airlines flew PHL–LAS frequently enough to compare in this period.
- What is the best time of day to fly from PHL to LAS?
- Departures around 6 a.m. have the best record (87% on-time), while departures around 7 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHL to LAS?
- The scheduled PHL–LAS flight time averages 5h 29m over 2,177 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are PHL to LAS flights cancelled?
- 1.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from PHL to LAS?
- July 2025 was the roughest month in this dataset, with only 58% of arrivals on time. The best was December 2024 at 86%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 3,504 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.