OnTimeStats

Historical on-time performance

San Luis Obispo to Los Angeles

156 miData through May 2026Source: US DOT · BTS

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

On-time rate88%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 643 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
    p9015 min
    Cancel0.3%
    Flights643

Why flights run late

Delay causes

  • Airline42%
  • Weather21%
  • Air traffic (NAS)10%
  • Late aircraft27%
  • Security1%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather50%
  • Air traffic (NAS)50%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 2 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 → LAX

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 85% to 92% on time.

  • Middays92% on time · p90 5 min · 131 flights · limited
  • Afternoons89% on time · p90 15 min · 315 flights
  • Overnights86% on time · p90 20 min · 206 flights
  • Mornings86% on time · p90 20 min · 1,078 flights
  • Evenings85% on time · p90 20 min · 131 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 83% to 91% on time.

  • Wednesdays91% on time · p90 10 min · 262 flights
  • Tuesdays89% on time · p90 15 min · 259 flights
  • Mondays88% on time · p90 15 min · 268 flights
  • Fridays87% on time · p90 20 min · 277 flights
  • Thursdays86% on time · p90 15 min · 273 flights
  • Saturdays86% on time · p90 30 min · 257 flights
  • Sundays83% on time · p90 25 min · 265 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.