OnTimeStats

Historical on-time performance

Los Angeles to Santa Rosa

400 miData through Dec 2025Source: US DOT · BTS

Flights on LAX–STS arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights

based on 703 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time82%
    Medianon time
    p9025 min
    Cancel2.3%
    Flights703

Why flights run late

Delay causes

  • Airline43%
  • Weather12%
  • Air traffic (NAS)10%
  • Late aircraft35%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly LAX → STS

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 75% to 84% on time.

  • Evenings84% on time · p90 20 min · 275 flights
  • Mornings83% on time · p90 25 min · 800 flights
  • Overnights77% on time · p90 30 min · 351 flights
  • Afternoons77% on time · p90 50 min · 186 flights · limited
  • Middays75% on time · p90 30 min · 303 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 88% on time.

  • Tuesdays88% on time · p90 10 min · 213 flights
  • Wednesdays87% on time · p90 15 min · 226 flights
  • Saturdays83% on time · p90 25 min · 234 flights
  • Fridays80% on time · p90 40 min · 311 flights
  • Thursdays79% on time · p90 40 min · 310 flights
  • Sundays77% on time · p90 40 min · 314 flights
  • Mondays74% on time · p90 35 min · 308 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.