OnTimeStats

Historical on-time performance

Arcata CA to Los Angeles

577 miData through May 2026Source: US DOT · BTS

Flights on ACV–LAX arrive on time 88% of the time over the last 12 months.

On-time rate88%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 349 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time88%
    Medianon time
    p9020 min
    Cancel0.3%
    Flights349

Why flights run late

Delay causes

  • Airline18%
  • Weather27%
  • Air traffic (NAS)5%
  • Late aircraft50%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather0%
  • Air traffic (NAS)100%
  • Security0%

Most cancellations here are attributed to Air traffic (NAS). Shares are among 1 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 ACV → 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 — 92% on time.

  • Mornings92% on time · p90 10 min · 112 flights · limited
  • Afternoons86% on time · p90 20 min · 973 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 85% to 89% on time.

  • Saturdays89% on time · p90 15 min · 159 flights · limited
  • Mondays88% on time · p90 15 min · 156 flights · limited
  • Thursdays87% on time · p90 20 min · 158 flights · limited
  • Sundays87% on time · p90 30 min · 157 flights · limited
  • Wednesdays86% on time · p90 20 min · 155 flights · limited
  • Fridays85% on time · p90 25 min · 157 flights · limited
  • Tuesdays85% on time · p90 20 min · 155 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.