OnTimeStats

Historical on-time performance

Houston to Savannah

853 miData through Dec 2025Source: US DOT · BTS

Flights on HOU–SAV arrive on time 40% of the time over the last 12 months.

On-time rate40%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled3.3%of scheduled flights

based on 30 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time40%
    Median15 min
    p9060 min
    Cancel3.3%
    Flights30

Why flights run late

Delay causes

  • Airline27%
  • Weather2%
  • Air traffic (NAS)8%
  • Late aircraft63%
  • 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 → SAV

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 69% to 80% on time.

  • Middays80% on time · p90 30 min · 379 flights
  • Evenings76% on time · p90 45 min · 96 flights · limited
  • Afternoons69% on time · p90 45 min · 282 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 80% on time.

  • Thursdays80% on time · p90 30 min · 122 flights · limited
  • Mondays79% on time · p90 45 min · 121 flights · limited
  • Fridays75% on time · p90 50 min · 121 flights · limited
  • Sundays74% on time · p90 35 min · 130 flights · limited
  • Tuesdays72% on time · p90 50 min · 90 flights · limited
  • Wednesdays71% on time · p90 45 min · 90 flights · limited
  • Saturdays71% on time · p90 55 min · 140 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.