OnTimeStats

Historical on-time performance

Denver to Saint George

517 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–SGU arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights

based on 1,053 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time78%
    Medianon time
    p9040 min
    Cancel0.2%
    Flights1,053

Why flights run late

Delay causes

  • Airline49%
  • Weather11%
  • Air traffic (NAS)21%
  • Late aircraft19%
  • 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 DEN → SGU

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 — 88% on time.

  • Mornings88% on time · p90 15 min · 461 flights
  • Overnights76% on time · p90 55 min · 1,079 flights
  • Middays75% on time · p90 40 min · 400 flights
  • Afternoons73% on time · p90 55 min · 464 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 76% to 79% on time.

  • Sundays79% on time · p90 45 min · 380 flights
  • Tuesdays79% on time · p90 50 min · 258 flights
  • Wednesdays79% on time · p90 50 min · 314 flights
  • Mondays78% on time · p90 40 min · 380 flights
  • Thursdays77% on time · p90 35 min · 317 flights
  • Saturdays76% on time · p90 40 min · 378 flights
  • Fridays76% on time · p90 50 min · 377 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.