OnTimeStats

Historical on-time performance

Kona to Las Vegas

2,717 miData through May 2026Source: US DOT · BTS

Flights on KOA–LAS arrive on time 95% of the time over the last 12 months.

On-time rate95%arrived within 15 min
p90 delayon time1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time95%
    Medianon time
    p90on time
    Cancel0.9%
    Flights337

Why flights run late

Delay causes

  • Airline78%
  • Weather0%
  • Air traffic (NAS)19%
  • Late aircraft4%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline67%
  • Weather33%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 3 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 KOA → LAS

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 95% to 95% on time.

  • Mornings95% on time · p90 5 min · 677 flights
  • Overnights95% on time · p90 on time · 418 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 94% to 97% on time.

  • Thursdays97% on time · p90 5 min · 157 flights · limited
  • Mondays96% on time · p90 on time · 156 flights · limited
  • Saturdays96% on time · p90 on time · 157 flights · limited
  • Fridays95% on time · p90 5 min · 157 flights · limited
  • Wednesdays95% on time · p90 5 min · 156 flights · limited
  • Sundays94% on time · p90 5 min · 157 flights · limited
  • Tuesdays94% on time · p90 5 min · 156 flights · limited

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.