OnTimeStats

Historical on-time performance

San Francisco to Monterey

77 miData through Dec 2025Source: US DOT · BTS

Flights on SFO–MRY arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 682 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time81%
    Medianon time
    p9045 min
    Cancel0.7%
    Flights682

Why flights run late

Delay causes

  • Airline21%
  • Weather13%
  • Air traffic (NAS)33%
  • Late aircraft33%
  • 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 SFO → MRY

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

Best time of day

Mornings are the most reliable time of day to fly this route — 85% on time.

  • Mornings85% on time · p90 25 min · 248 flights
  • Middays79% on time · p90 35 min · 744 flights
  • Overnights78% on time · p90 40 min · 845 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 87% on time.

  • Saturdays87% on time · p90 15 min · 260 flights
  • Tuesdays84% on time · p90 20 min · 261 flights
  • Wednesdays81% on time · p90 30 min · 276 flights
  • Thursdays77% on time · p90 35 min · 267 flights
  • Fridays77% on time · p90 45 min · 267 flights
  • Mondays76% on time · p90 50 min · 275 flights
  • Sundays74% on time · p90 50 min · 266 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.