OnTimeStats

Historical on-time performance

Kona to Los Angeles

2,504 miData through May 2026Source: US DOT · BTS

Flights on KOA–LAX arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 1,363 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time91%
    Medianon time
    p9010 min
    Cancel1.0%
    Flights494
  • Delta Air Lines
    On-time86%
    Medianon time
    p9015 min
    Cancel3.6%
    Flights337
  • American Airlines
    On-time82%
    Medianon time
    p9025 min
    Cancel1.2%
    Flights245
  • Alaska Airlines
    On-time77%
    Medianon time
    p9040 min
    Cancel0.7%
    Flights287

Why flights run late

Delay causes

  • Airline42%
  • Weather6%
  • Air traffic (NAS)12%
  • Late aircraft40%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline59%
  • Weather41%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 22 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 → LAX

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

Best time of day

Overnights are the most reliable time of day to fly this route — 88% on time.

  • Overnights88% on time · p90 15 min · 1,867 flights
  • Afternoons83% on time · p90 25 min · 1,818 flights
  • Middays82% on time · p90 25 min · 1,223 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 82% to 89% on time.

  • Wednesdays89% on time · p90 15 min · 673 flights
  • Tuesdays88% on time · p90 15 min · 669 flights
  • Mondays84% on time · p90 20 min · 688 flights
  • Saturdays84% on time · p90 20 min · 770 flights
  • Thursdays84% on time · p90 20 min · 698 flights
  • Fridays83% on time · p90 25 min · 697 flights
  • Sundays82% on time · p90 25 min · 713 flights

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.