OnTimeStats

Historical on-time performance

San Luis Obispo to San Diego

263 miData through May 2026Source: US DOT · BTS

Flights on SBP–SAN arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled3.8%of scheduled flights

based on 551 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time75%
    Medianon time
    p9040 min
    Cancel3.8%
    Flights551

Why flights run late

Delay causes

  • Airline36%
  • Weather6%
  • Air traffic (NAS)21%
  • Late aircraft36%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline10%
  • Weather57%
  • Air traffic (NAS)33%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 21 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 SBP → SAN

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 74% to 83% on time.

  • Middays83% on time · p90 30 min · 295 flights
  • Mornings82% on time · p90 15 min · 640 flights
  • Afternoons74% on time · p90 50 min · 604 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 83% on time.

  • Tuesdays83% on time · p90 20 min · 206 flights
  • Saturdays83% on time · p90 15 min · 209 flights
  • Wednesdays81% on time · p90 25 min · 215 flights
  • Mondays81% on time · p90 25 min · 233 flights
  • Sundays77% on time · p90 30 min · 239 flights
  • Thursdays76% on time · p90 45 min · 230 flights
  • Fridays72% on time · p90 50 min · 238 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.