OnTimeStats

Historical on-time performance

Raleigh-durham to Houston

1,050 miData through Dec 2025Source: US DOT · BTS

Flights on RDU–HOU arrive on time 84% of the time over the last 12 months.

On-time rate84%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 253 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time84%
    Medianon time
    p9025 min
    Cancel0.4%
    Flights253

Why flights run late

Delay causes

  • Airline25%
  • Weather0%
  • Air traffic (NAS)5%
  • Late aircraft70%
  • 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 RDU → 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 74% to 90% on time.

  • Mornings90% on time · p90 5 min · 92 flights · limited
  • Middays88% on time · p90 15 min · 259 flights
  • Evenings78% on time · p90 35 min · 251 flights
  • Afternoons74% on time · p90 50 min · 192 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 87% on time.

  • Tuesdays87% on time · p90 20 min · 99 flights · limited
  • Mondays86% on time · p90 20 min · 112 flights · limited
  • Wednesdays84% on time · p90 20 min · 99 flights · limited
  • Saturdays80% on time · p90 40 min · 118 flights · limited
  • Sundays80% on time · p90 30 min · 147 flights · limited
  • Thursdays78% on time · p90 25 min · 113 flights · limited
  • Fridays78% on time · p90 40 min · 113 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.