OnTimeStats

Historical on-time performance

Phoenix to Houston

1,020 miData through Dec 2025Source: US DOT · BTS

Flights on PHX–HOU arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 2,135 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time77%
    Medianon time
    p9035 min
    Cancel0.9%
    Flights2,135

Why flights run late

Delay causes

  • Airline37%
  • Weather1%
  • Air traffic (NAS)13%
  • Late aircraft50%
  • 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 PHX → HOU

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 — 91% on time.

  • Mornings91% on time · p90 10 min · 2,194 flights
  • Middays80% on time · p90 25 min · 1,144 flights
  • Afternoons70% on time · p90 45 min · 929 flights
  • Evenings66% on time · p90 55 min · 1,315 flights
  • Overnights63% on time · p90 55 min · 513 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.

  • Saturdays82% on time · p90 25 min · 724 flights
  • Tuesdays81% on time · p90 25 min · 863 flights
  • Wednesdays80% on time · p90 25 min · 860 flights
  • Thursdays78% on time · p90 35 min · 904 flights
  • Sundays77% on time · p90 30 min · 915 flights
  • Mondays77% on time · p90 40 min · 917 flights
  • Fridays74% on time · p90 35 min · 912 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.