OnTimeStats

Historical on-time performance

Salt Lake City to Pasco

521 miData through Dec 2025Source: US DOT · BTS

Flights on SLC–PSC arrive on time 89% of the time over the last 12 months.

On-time rate89%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights

based on 1,143 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlinesbest
    On-time91%
    Medianon time
    p9010 min
    Cancel0.1%
    Flights899
  • Delta Air Lines
    On-time82%
    Medianon time
    p9035 min
    Cancel0.4%
    Flights244

Why flights run late

Delay causes

  • Airline73%
  • Weather15%
  • Air traffic (NAS)8%
  • Late aircraft5%
  • 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 SLC → 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 — 97% on time.

  • Mornings97% on time · p90 on time · 119 flights · limited
  • Middays91% on time · p90 10 min · 1,096 flights
  • Afternoons88% on time · p90 15 min · 973 flights
  • Overnights83% on time · p90 25 min · 1,076 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 86% to 90% on time.

  • Thursdays90% on time · p90 10 min · 477 flights
  • Saturdays89% on time · p90 15 min · 416 flights
  • Tuesdays88% on time · p90 15 min · 479 flights
  • Wednesdays87% on time · p90 20 min · 480 flights
  • Fridays87% on time · p90 15 min · 479 flights
  • Mondays87% on time · p90 20 min · 482 flights
  • Sundays86% on time · p90 25 min · 471 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.