OnTimeStats

Historical on-time performance

Oklahoma City to Las Vegas

987 miData through Dec 2025Source: US DOT · BTS

Flights on OKC–LAS arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 1,059 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time82%
    Medianon time
    p9030 min
    Cancel0.4%
    Flights1,059

Why flights run late

Delay causes

  • Airline27%
  • Weather3%
  • Air traffic (NAS)18%
  • Late aircraft53%
  • 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 OKC → 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 — 93% on time.

  • Mornings93% on time · p90 5 min · 873 flights
  • Middays83% on time · p90 25 min · 942 flights
  • Overnights68% on time · p90 55 min · 306 flights
  • Evenings68% on time · p90 55 min · 779 flights
  • Afternoons68% on time · p90 55 min · 407 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 85% on time.

  • Saturdays85% on time · p90 25 min · 386 flights
  • Wednesdays84% on time · p90 30 min · 389 flights
  • Tuesdays82% on time · p90 30 min · 413 flights
  • Mondays77% on time · p90 40 min · 454 flights
  • Fridays77% on time · p90 40 min · 452 flights
  • Sundays76% on time · p90 45 min · 647 flights
  • Thursdays75% on time · p90 40 min · 566 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.