Las Vegas (LAS) to Philadelphia (PHL): On-Time Performance
Data through July 2026
The calendar drives reliability on LAS–PHL. February 2025 flights landed on schedule 92% of the time, but July 2026 dropped to 54% — a gap of 38 points. Across the full period the route averages 80% on-time against a national 78%.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 4.1
- last 12 months
- Duration
- 4h 47m
- scheduled
- Distance
- 2,177 mi
Best airline from LAS to PHL
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 83% | 10 min | 2.3% | 438 |
| American Airlines | 82% | 15 min | 1.6% | 2,706 |
| Frontier Airlines | 65% | 27 min | 1.9% | 361 |
Monthly on-time trend
Best time to fly from LAS to PHL
Aim for departures around 12 a.m. (98% on-time); avoid 9 a.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 18 min |
| Tuesdaybest | 87% | 10 min |
| Wednesday | 84% | 10 min |
| Thursday | 77% | 13 min |
| Friday | 77% | 17 min |
| Saturday | 83% | 20 min |
| Sunday | 77% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations41%
- National airspace system20%
- Weather3%
Frequently asked questions
- How often are flights from LAS to PHL delayed?
- 20% of LAS–PHL 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 15 minutes.
- Which airline is most reliable from LAS to PHL?
- Spirit Airlines has the best on-time record on this route at 83%, based on 438 flights. 3 airlines flew LAS–PHL frequently enough to compare in this period.
- What is the best time of day to fly from LAS to PHL?
- Departures around 12 a.m. have the best record (98% on-time), while departures around 9 a.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LAS to PHL?
- The scheduled LAS–PHL flight time averages 4h 47m over 2,177 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are LAS to PHL flights cancelled?
- 1.7% 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 LAS to PHL?
- July 2026 was the roughest month in this dataset, with only 54% of arrivals on time. The best was February 2025 at 92%. If your dates are flexible, that 38-point gap is worth planning around.
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Based on 3,505 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.