OnTimeStats

Historical on-time performance

Houston to Savannah

853 miData through May 2026Source: 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.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather100%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 1 cancellations with a reported cause (BTS reports causes from June 2003).

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 (2023-06 .. 2026-05).

Best time of day

Middays are the most reliable time of day to fly this route — 83% on time.

  • Middays83% on time · p90 25 min · 370 flights
  • Afternoons66% on time · p90 55 min · 206 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 67% to 83% on time.

  • Mondays83% on time · p90 45 min · 111 flights · limited
  • Thursdays81% on time · p90 30 min · 114 flights · limited
  • Fridays76% on time · p90 50 min · 113 flights · limited
  • Sundays75% on time · p90 30 min · 121 flights · limited
  • Saturdays67% on time · p90 55 min · 125 flights · limited

Keep exploring

Related pages

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.