OnTimeStats

Historical on-time performance

San Diego to San Luis Obispo

263 miData through Dec 2025Source: US DOT · BTS

Flights on SAN–SBP arrive on time 68% of the time over the last 12 months.

On-time rate68%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled4.1%of scheduled flights

based on 651 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time68%
    Medianon time
    p9050 min
    Cancel4.1%
    Flights651

Why flights run late

Delay causes

  • Airline15%
  • Weather6%
  • Air traffic (NAS)25%
  • Late aircraft54%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SAN → SBP

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 65% to 84% on time.

  • Afternoons84% on time · p90 30 min · 111 flights · limited
  • Mornings81% on time · p90 60 min · 99 flights · limited
  • Middays75% on time · p90 45 min · 719 flights
  • Overnights65% on time · p90 55 min · 529 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 63% to 88% on time.

  • Tuesdays88% on time · p90 15 min · 177 flights · limited
  • Wednesdays82% on time · p90 35 min · 186 flights · limited
  • Saturdays80% on time · p90 25 min · 193 flights · limited
  • Sundays68% on time · p90 50 min · 232 flights
  • Thursdays68% on time · p90 55 min · 227 flights
  • Mondays67% on time · p90 50 min · 228 flights
  • Fridays63% on time · p90 65 min · 230 flights
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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.