OnTimeStats

Historical on-time performance

San Francisco to Pasco

620 miData through Dec 2025Source: US DOT · BTS

Flights on SFO–PSC arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.6%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
    p9030 min
    Cancel0.6%
    Flights703

Why flights run late

Delay causes

  • Airline51%
  • Weather0%
  • Air traffic (NAS)30%
  • Late aircraft18%
  • 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 SFO → PSC

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 — 91% on time.

  • Mornings91% on time · p90 10 min · 341 flights
  • Evenings83% on time · p90 35 min · 313 flights
  • Middays80% on time · p90 35 min · 716 flights
  • Overnights73% on time · p90 40 min · 405 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 84% on time.

  • Tuesdays84% on time · p90 25 min · 254 flights
  • Saturdays83% on time · p90 40 min · 247 flights
  • Wednesdays81% on time · p90 30 min · 259 flights
  • Sundays80% on time · p90 35 min · 255 flights
  • Fridays80% on time · p90 30 min · 251 flights
  • Mondays80% on time · p90 45 min · 258 flights
  • Thursdays80% on time · p90 30 min · 252 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.