OnTimeStats

Historical on-time performance

Valparaiso to Houston

527 miData through Dec 2025Source: US DOT · BTS

Flights on VPS–HOU arrive on time 66% of the time over the last 12 months.

On-time rate66%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 122 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time66%
    Medianon time
    p9070 min
    Cancel0.0%
    Flights122

Why flights run late

Delay causes

  • Airline7%
  • Weather0%
  • Air traffic (NAS)3%
  • Late aircraft90%
  • 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 VPS → HOU

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 68% to 80% on time.

  • Afternoons80% on time · p90 40 min · 158 flights · limited
  • Evenings79% on time · p90 45 min · 590 flights
  • Overnights68% on time · p90 40 min · 50 flights · limited

Best day of week

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

  • Saturdays88% on time · p90 20 min · 103 flights · limited
  • Mondays84% on time · p90 25 min · 131 flights · limited
  • Fridays78% on time · p90 55 min · 136 flights · limited
  • Sundays78% on time · p90 40 min · 134 flights · limited
  • Tuesdays77% on time · p90 50 min · 102 flights · limited
  • Wednesdays76% on time · p90 55 min · 100 flights · limited
  • Thursdays75% on time · p90 50 min · 129 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.