OnTimeStats

Historical on-time performance

Las Vegas to Los Angeles

236 miData through May 2026Source: US DOT · BTS

Flights on LAS–LAX arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 8,300 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-time86%
    Medianon time
    p9020 min
    Cancel0.8%
    Flights735
  • United Airlines
    On-time86%
    Medianon time
    p9020 min
    Cancel0.7%
    Flights1,562
  • Delta Air Lines
    On-time82%
    Medianon time
    p9030 min
    Cancel0.9%
    Flights1,738
  • Frontier Airlines
    On-time80%
    Medianon time
    p9040 min
    Cancel0.2%
    Flights575
  • SkyWest Airlines
    On-time79%
    Medianon time
    p9045 min
    Cancel2.6%
    Flights192
  • American Airlines
    On-time75%
    Medianon time
    p9050 min
    Cancel0.8%
    Flights1,103
  • Southwest Airlines
    On-time68%
    Medianon time
    p9045 min
    Cancel0.4%
    Flights2,395

Why flights run late

Delay causes

  • Airline32%
  • Weather1%
  • Air traffic (NAS)14%
  • Late aircraft53%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline39%
  • Weather27%
  • Air traffic (NAS)34%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 56 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 LAS → LAX

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 · 8,140 flights
  • Middays79% on time · p90 35 min · 6,319 flights
  • Afternoons70% on time · p90 55 min · 3,629 flights
  • Evenings70% on time · p90 60 min · 6,253 flights
  • Overnights66% on time · p90 55 min · 3,445 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 70% to 85% on time.

  • Tuesdays85% on time · p90 25 min · 3,697 flights
  • Wednesdays83% on time · p90 25 min · 3,721 flights
  • Saturdays83% on time · p90 30 min · 3,540 flights
  • Mondays75% on time · p90 45 min · 4,220 flights
  • Thursdays74% on time · p90 45 min · 4,189 flights
  • Fridays71% on time · p90 55 min · 4,238 flights
  • Sundays70% on time · p90 50 min · 4,181 flights

Keep exploring

Related pages

Delay predictorfor this route→LAS airportLas Vegas→LAX airportLos Angeles→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.