OnTimeStats

Historical on-time performance

Dallas to Valparaiso

630 miData through Dec 2025Source: US DOT · BTS

Flights on DAL–VPS arrive on time 74% of the time over the last 12 months.

On-time rate74%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights

based on 400 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time74%
    Medianon time
    p9045 min
    Cancel0.8%
    Flights400

Why flights run late

Delay causes

  • Airline26%
  • Weather7%
  • Air traffic (NAS)19%
  • Late aircraft48%
  • 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 DAL → VPS

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 — 84% on time.

  • Middays84% on time · p90 25 min · 1,064 flights
  • Afternoons71% on time · p90 40 min · 101 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 88% on time.

  • Tuesdays88% on time · p90 20 min · 166 flights · limited
  • Sundays84% on time · p90 25 min · 188 flights · limited
  • Mondays80% on time · p90 40 min · 174 flights · limited
  • Wednesdays80% on time · p90 30 min · 166 flights · limited
  • Saturdays80% on time · p90 35 min · 181 flights · limited
  • Fridays80% on time · p90 30 min · 173 flights · limited
  • Thursdays75% on time · p90 40 min · 173 flights · limited
Advertisement

Keep exploring

Related pages

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.