OnTimeStats

Historical on-time performance

San Francisco to Arcata CA

250 miData through May 2026Source: US DOT · BTS

Flights on SFO–ACV arrive on time 74% of the time over the last 12 months.

On-time rate74%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights

based on 1,289 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time74%
    Medianon time
    p9045 min
    Cancel1.8%
    Flights1,289

Why flights run late

Delay causes

  • Airline32%
  • Weather24%
  • Air traffic (NAS)23%
  • Late aircraft22%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather61%
  • Air traffic (NAS)39%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 23 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 SFO → ACV

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 72% to 81% on time.

  • Mornings81% on time · p90 25 min · 370 flights
  • Evenings81% on time · p90 55 min · 232 flights
  • Afternoons78% on time · p90 45 min · 736 flights
  • Overnights76% on time · p90 35 min · 729 flights
  • Middays72% on time · p90 70 min · 1,335 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 80% on time.

  • Tuesdays80% on time · p90 40 min · 470 flights
  • Wednesdays77% on time · p90 40 min · 495 flights
  • Saturdays76% on time · p90 55 min · 455 flights
  • Thursdays76% on time · p90 50 min · 497 flights
  • Mondays75% on time · p90 50 min · 497 flights
  • Fridays74% on time · p90 50 min · 493 flights
  • Sundays73% on time · p90 65 min · 495 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.