OnTimeStats

Historical on-time performance

Las Vegas to Philadelphia

2,176 miData through Dec 2025Source: US DOT · BTS

Flights on LAS–PHL arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights

based on 1,469 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • American Airlines
    On-time82%
    Medianon time
    p9030 min
    Cancel1.7%
    Flights1,282
  • Spirit Airlines
    On-time78%
    Medianon time
    p9025 min
    Cancel3.2%
    Flights125
  • Frontier Airlines
    On-time74%
    Medianon time
    p9060 min
    Cancel0.0%
    Flights62

Why flights run late

Delay causes

  • Airline28%
  • Weather3%
  • Air traffic (NAS)22%
  • Late aircraft47%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly LAS → PHL

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 73% to 82% on time.

  • Early mornings82% on time · p90 35 min · 246 flights
  • Mornings80% on time · p90 30 min · 1,151 flights
  • Overnights79% on time · p90 35 min · 2,290 flights
  • Afternoons78% on time · p90 50 min · 194 flights · limited
  • Middays73% on time · p90 50 min · 1,070 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 83% on time.

  • Tuesdays83% on time · p90 25 min · 681 flights
  • Wednesdays83% on time · p90 25 min · 712 flights
  • Saturdays80% on time · p90 35 min · 646 flights
  • Mondays76% on time · p90 45 min · 722 flights
  • Fridays75% on time · p90 45 min · 740 flights
  • Thursdays75% on time · p90 40 min · 719 flights
  • Sundays74% on time · p90 40 min · 731 flights
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Keep exploring

Related pages

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.