OnTimeStats

Historical on-time performance

Denver to Devils Lake

638 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–DVL arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights

based on 346 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time85%
    Medianon time
    p9020 min
    Cancel1.4%
    Flights346

Why flights run late

Delay causes

  • Airline41%
  • Weather24%
  • Air traffic (NAS)10%
  • 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 DEN → DVL

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 83% to 87% on time.

  • Middays87% on time · p90 20 min · 191 flights · limited
  • Mornings83% on time · p90 20 min · 914 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 87% on time.

  • Sundays87% on time · p90 15 min · 187 flights · limited
  • Wednesdays85% on time · p90 15 min · 188 flights · limited
  • Saturdays84% on time · p90 20 min · 163 flights · limited
  • Thursdays83% on time · p90 25 min · 186 flights · limited
  • Mondays81% on time · p90 20 min · 187 flights · limited
  • Fridays80% on time · p90 25 min · 188 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.