OnTimeStats

Historical on-time performance

San Antonio to New Orleans

495 miData through Dec 2025Source: US DOT · BTS

Flights on SAT–MSY arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 338 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time85%
    Medianon time
    p9015 min
    Cancel0.6%
    Flights338

Why flights run late

Delay causes

  • Airline30%
  • Weather0%
  • Air traffic (NAS)12%
  • Late aircraft57%
  • 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 SAT → MSY

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 — 94% on time.

  • Mornings94% on time · p90 on time · 107 flights · limited
  • Middays86% on time · p90 15 min · 835 flights
  • Afternoons83% on time · p90 20 min · 154 flights · limited
  • Evenings77% on time · p90 50 min · 56 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 81% to 90% on time.

  • Mondays90% on time · p90 15 min · 164 flights · limited
  • Tuesdays90% on time · p90 10 min · 144 flights · limited
  • Fridays87% on time · p90 15 min · 164 flights · limited
  • Wednesdays87% on time · p90 15 min · 140 flights · limited
  • Thursdays84% on time · p90 20 min · 164 flights · limited
  • Sundays83% on time · p90 20 min · 242 flights
  • Saturdays81% on time · p90 25 min · 159 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.