OnTimeStats

Historical on-time performance

Devils Lake to Denver

638 miData through Dec 2025Source: US DOT · BTS

Flights on DVL–DEN arrive on time 66% of the time over the last 12 months.

On-time rate66%arrived within 15 min
p90 delay90 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights

based on 473 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time66%
    Medianon time
    p9090 min
    Cancel2.3%
    Flights473

Why flights run late

Delay causes

  • Airline41%
  • Weather9%
  • Air traffic (NAS)36%
  • Late aircraft14%
  • 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 DVL → DEN

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

Best time of day

Middays are the most reliable time of day to fly this route — 80% on time.

  • Middays80% on time · p90 50 min · 168 flights · limited
  • Evenings71% on time · p90 85 min · 1,090 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 70% to 75% on time.

  • Sundays75% on time · p90 80 min · 189 flights · limited
  • Tuesdays75% on time · p90 70 min · 159 flights · limited
  • Fridays73% on time · p90 75 min · 188 flights · limited
  • Saturdays72% on time · p90 70 min · 163 flights · limited
  • Wednesdays72% on time · p90 75 min · 188 flights · limited
  • Thursdays70% on time · p90 85 min · 184 flights · limited
  • Mondays70% on time · p90 80 min · 187 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.