OnTimeStats

Historical on-time performance

Palm Springs to Sacramento

439 miData through Dec 2025Source: US DOT · BTS

Flights on PSP–SMF arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 428 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time81%
    Medianon time
    p9030 min
    Cancel0.0%
    Flights428

Why flights run late

Delay causes

  • Airline16%
  • Weather0%
  • Air traffic (NAS)8%
  • Late aircraft76%
  • Security1%

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 PSP → SMF

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 — 96% on time.

  • Mornings96% on time · p90 on time · 705 flights
  • Middays86% on time · p90 20 min · 185 flights · limited
  • Evenings73% on time · p90 45 min · 471 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 93% on time.

  • Tuesdays93% on time · p90 5 min · 174 flights · limited
  • Wednesdays90% on time · p90 10 min · 172 flights · limited
  • Fridays87% on time · p90 20 min · 236 flights
  • Mondays86% on time · p90 20 min · 236 flights
  • Thursdays86% on time · p90 20 min · 232 flights
  • Saturdays85% on time · p90 20 min · 157 flights · limited
  • Sundays78% on time · p90 35 min · 206 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.