OnTimeStats

Historical on-time performance

Newark to Las Vegas

2,227 miData through Dec 2025Source: US DOT · BTS

Flights on EWR–LAS arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 2,991 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time77%
    Medianon time
    p9050 min
    Cancel0.6%
    Flights2,521
  • Spirit Airlines
    On-time72%
    Medianon time
    p9075 min
    Cancel2.3%
    Flights470

Why flights run late

Delay causes

  • Airline22%
  • Weather5%
  • Air traffic (NAS)36%
  • Late aircraft37%
  • 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 EWR → LAS

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

Best time of day

Mornings are the most reliable time of day to fly this route — 84% on time.

  • Mornings84% on time · p90 20 min · 2,910 flights
  • Middays78% on time · p90 45 min · 1,947 flights
  • Afternoons73% on time · p90 65 min · 1,306 flights
  • Evenings67% on time · p90 80 min · 1,968 flights
  • Overnights55% on time · p90 105 min · 1,085 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 77% on time.

  • Wednesdays77% on time · p90 50 min · 1,321 flights
  • Tuesdays77% on time · p90 45 min · 1,315 flights
  • Mondays76% on time · p90 50 min · 1,334 flights
  • Saturdays75% on time · p90 60 min · 1,292 flights
  • Sundays73% on time · p90 65 min · 1,332 flights
  • Thursdays72% on time · p90 65 min · 1,298 flights
  • Fridays71% on time · p90 65 min · 1,324 flights
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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.