OnTimeStats

Historical on-time performance

Denver to Sioux Falls

483 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–FSD arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights

based on 1,615 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlinesbest
    On-time80%
    Medianon time
    p9040 min
    Cancel1.1%
    Flights1,307
  • United Airlines
    On-time66%
    Medianon time
    p90100 min
    Cancel0.3%
    Flights308

Why flights run late

Delay causes

  • Airline31%
  • Weather10%
  • Air traffic (NAS)20%
  • Late aircraft40%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DEN → FSD

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 69% to 82% on time.

  • Middays82% on time · p90 30 min · 1,916 flights
  • Mornings82% on time · p90 30 min · 906 flights
  • Overnights75% on time · p90 50 min · 974 flights
  • Evenings72% on time · p90 60 min · 1,119 flights
  • Afternoons69% on time · p90 60 min · 130 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 81% on time.

  • Wednesdays81% on time · p90 30 min · 710 flights
  • Sundays80% on time · p90 40 min · 736 flights
  • Tuesdays80% on time · p90 40 min · 693 flights
  • Fridays78% on time · p90 40 min · 754 flights
  • Saturdays77% on time · p90 45 min · 677 flights
  • Thursdays76% on time · p90 50 min · 716 flights
  • Mondays74% on time · p90 50 min · 759 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.