OnTimeStats

Historical on-time performance

Memphis to Houston

484 miData through Dec 2025Source: US DOT · BTS

Flights on MEM–HOU arrive on time 80% of the time over the last 12 months.

On-time rate80%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights

based on 797 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time80%
    Medianon time
    p9030 min
    Cancel1.1%
    Flights797

Why flights run late

Delay causes

  • Airline23%
  • Weather2%
  • Air traffic (NAS)22%
  • Late aircraft53%
  • 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 MEM → 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 — 90% on time.

  • Mornings90% on time · p90 10 min · 910 flights
  • Middays74% on time · p90 40 min · 300 flights
  • Evenings73% on time · p90 45 min · 598 flights
  • Afternoons71% on time · p90 50 min · 93 flights · limited
  • Overnights61% on time · p90 65 min · 96 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 87% on time.

  • Tuesdays87% on time · p90 15 min · 266 flights
  • Wednesdays86% on time · p90 15 min · 269 flights
  • Mondays81% on time · p90 25 min · 333 flights
  • Fridays80% on time · p90 30 min · 331 flights
  • Thursdays79% on time · p90 35 min · 333 flights
  • Saturdays77% on time · p90 40 min · 179 flights · limited
  • Sundays73% on time · p90 35 min · 286 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.