OnTimeStats

Historical on-time performance

Los Angeles to Las Vegas

236 miData through May 2026Source: US DOT · BTS

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

On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights

based on 8,296 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.

  • Spirit Airlines
    On-time84%
    Medianon time
    p9040 min
    Cancel1.0%
    Flights728
  • United Airlines
    On-time84%
    Medianon time
    p9030 min
    Cancel0.5%
    Flights1,560
  • SkyWest Airlines
    On-time81%
    Medianon time
    p9020 min
    Cancel2.6%
    Flights191
  • Delta Air Lines
    On-time77%
    Medianon time
    p9040 min
    Cancel0.7%
    Flights1,736
  • Southwest Airlines
    On-time73%
    Medianon time
    p9045 min
    Cancel0.5%
    Flights2,399
  • American Airlines
    On-time68%
    Medianon time
    p9070 min
    Cancel0.7%
    Flights1,106
  • Frontier Airlines
    On-time68%
    Medianon time
    p9070 min
    Cancel1.7%
    Flights576

Why flights run late

Delay causes

  • Airline28%
  • Weather1%
  • Air traffic (NAS)27%
  • Late aircraft45%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline44%
  • Weather27%
  • Air traffic (NAS)30%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 64 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly LAX → LAS

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 89% on time.

  • Mornings89% on time · p90 15 min · 7,146 flights
  • Middays74% on time · p90 50 min · 5,348 flights
  • Evenings72% on time · p90 55 min · 5,784 flights
  • Overnights71% on time · p90 55 min · 4,704 flights
  • Afternoons69% on time · p90 60 min · 4,830 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 84% on time.

  • Tuesdays84% on time · p90 25 min · 3,701 flights
  • Wednesdays82% on time · p90 30 min · 3,705 flights
  • Saturdays81% on time · p90 35 min · 3,530 flights
  • Mondays76% on time · p90 45 min · 4,223 flights
  • Sundays73% on time · p90 50 min · 4,218 flights
  • Thursdays70% on time · p90 55 min · 4,188 flights
  • Fridays69% on time · p90 65 min · 4,247 flights

Keep exploring

Related pages

Delay predictorfor this route→LAX airportLos Angeles→LAS airportLas Vegas→Southwest Airlinesairline profile→Delta Air Linesairline profile→United Airlinesairline profile→Seasonal delay patternsguide→

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.