OnTimeStats

Historical on-time performance

Houston to San Jose

1,621 miData through Dec 2025Source: US DOT · BTS

Flights on HOU–SJC arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 336 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time82%
    Medianon time
    p9025 min
    Cancel0.9%
    Flights336

Why flights run late

Delay causes

  • Airline36%
  • Weather12%
  • Air traffic (NAS)9%
  • Late aircraft43%
  • 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 HOU → SJC

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

Best time of day

Mornings are the most reliable time of day to fly this route — 87% on time.

  • Mornings87% on time · p90 20 min · 498 flights
  • Middays78% on time · p90 25 min · 247 flights
  • Afternoons74% on time · p90 25 min · 215 flights
  • Evenings72% on time · p90 45 min · 107 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 85% on time.

  • Fridays85% on time · p90 15 min · 155 flights · limited
  • Mondays84% on time · p90 20 min · 157 flights · limited
  • Wednesdays83% on time · p90 20 min · 157 flights · limited
  • Tuesdays82% on time · p90 20 min · 157 flights · limited
  • Thursdays79% on time · p90 25 min · 156 flights · limited
  • Saturdays77% on time · p90 25 min · 147 flights · limited
  • Sundays75% on time · p90 25 min · 156 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.