OnTimeStats

Historical on-time performance

Miami to New Orleans

674 miData through Dec 2025Source: US DOT · BTS

Flights on MIA–MSY arrive on time 68% of the time over the last 12 months.

On-time rate68%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights

based on 1,416 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Envoy Airbest
    On-time79%
    Medianon time
    p9025 min
    Cancel4.6%
    Flights151
  • Spirit Airlines
    On-time60%
    Medianon time
    p90115 min
    Cancel0.0%
    Flights30
  • American Airlines
    On-time67%
    Medianon time
    p9065 min
    Cancel1.5%
    Flights1,235

Why flights run late

Delay causes

  • Airline36%
  • Weather3%
  • Air traffic (NAS)13%
  • Late aircraft48%
  • 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 MIA → 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 — 86% on time.

  • Mornings86% on time · p90 20 min · 972 flights
  • Middays70% on time · p90 50 min · 605 flights
  • Afternoons67% on time · p90 70 min · 1,114 flights
  • Overnights65% on time · p90 75 min · 1,844 flights
  • Evenings62% on time · p90 85 min · 649 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 65% to 74% on time.

  • Tuesdays74% on time · p90 45 min · 663 flights
  • Wednesdays73% on time · p90 45 min · 658 flights
  • Saturdays70% on time · p90 60 min · 746 flights
  • Fridays70% on time · p90 55 min · 795 flights
  • Thursdays69% on time · p90 85 min · 735 flights
  • Mondays69% on time · p90 65 min · 765 flights
  • Sundays65% on time · p90 65 min · 822 flights
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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.