OnTimeStats

Historical on-time performance

Dayton to Denver

1,085 miData through Dec 2025Source: US DOT · BTS

Flights on DAY–DEN arrive on time 87% of the time over the last 12 months.

On-time rate87%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 307 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • United Airlines
    On-time88%
    Medianon time
    p9015 min
    Cancel0.0%
    Flights184
  • SkyWest Airlines
    On-time85%
    Medianon time
    p9025 min
    Cancel0.0%
    Flights123

Why flights run late

Delay causes

  • Airline43%
  • Weather8%
  • Air traffic (NAS)24%
  • Late aircraft25%
  • 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 DAY → DEN

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best day of week

On-time rates are fairly even by day on this route — ranging from 85% to 91% on time.

  • Thursdays91% on time · p90 5 min · 117 flights · limited
  • Wednesdays90% on time · p90 25 min · 118 flights · limited
  • Fridays89% on time · p90 20 min · 118 flights · limited
  • Sundays88% on time · p90 20 min · 118 flights · limited
  • Tuesdays87% on time · p90 20 min · 118 flights · limited
  • Saturdays87% on time · p90 20 min · 118 flights · limited
  • Mondays85% on time · p90 15 min · 118 flights · limited
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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.