OnTimeStats

Historical on-time performance

Houston to Pittsburgh

1,131 miData through Dec 2025Source: US DOT · BTS

Flights on HOU–PIT arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 152 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time69%
    Medianon time
    p9065 min
    Cancel0.0%
    Flights152

Why flights run late

Delay causes

  • Airline24%
  • Weather2%
  • Air traffic (NAS)16%
  • Late aircraft56%
  • Security1%

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 → PIT

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 73% to 78% on time.

  • Middays78% on time · p90 35 min · 379 flights
  • Afternoons75% on time · p90 50 min · 317 flights
  • Evenings73% on time · p90 50 min · 120 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.

  • Wednesdays82% on time · p90 35 min · 113 flights · limited
  • Fridays77% on time · p90 40 min · 126 flights · limited
  • Sundays77% on time · p90 55 min · 146 flights · limited
  • Thursdays76% on time · p90 50 min · 124 flights · limited
  • Saturdays75% on time · p90 30 min · 81 flights · limited
  • Mondays73% on time · p90 30 min · 126 flights · limited
  • Tuesdays73% on time · p90 65 min · 114 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.