OnTimeStats

Historical on-time performance

Palm Springs to San Francisco

421 miData through May 2026Source: US DOT · BTS

Flights on PSP–SFO arrive on time 67% of the time over the last 12 months.

On-time rate67%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 2,405 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlinesbest
    On-time68%
    Medianon time
    p9065 min
    Cancel1.0%
    Flights2,132
  • United Airlines
    On-time57%
    Median5 min
    p90110 min
    Cancel0.4%
    Flights273

Why flights run late

Delay causes

  • Airline32%
  • Weather2%
  • Air traffic (NAS)49%
  • Late aircraft17%
  • Security1%

Most delay minutes here are attributed to Air traffic (NAS).

When flights don't go

Why flights were cancelled

  • Airline9%
  • Weather36%
  • Air traffic (NAS)55%
  • Security0%

Most cancellations here are attributed to Air traffic (NAS). Shares are among 22 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 PSP → SFO

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Middays are the most reliable time of day to fly this route — 73% on time.

  • Middays73% on time · p90 60 min · 2,310 flights
  • Afternoons69% on time · p90 70 min · 1,187 flights
  • Mornings67% on time · p90 60 min · 2,377 flights
  • Evenings66% on time · p90 80 min · 1,403 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 65% to 74% on time.

  • Saturdays74% on time · p90 50 min · 929 flights
  • Tuesdays73% on time · p90 50 min · 934 flights
  • Wednesdays71% on time · p90 55 min · 952 flights
  • Thursdays69% on time · p90 65 min · 1,104 flights
  • Mondays66% on time · p90 70 min · 1,118 flights
  • Fridays66% on time · p90 65 min · 1,127 flights
  • Sundays65% on time · p90 75 min · 1,113 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.