OnTimeStats

Historical on-time performance

Salt Lake City to New Orleans

1,428 miData through Dec 2025Source: US DOT · BTS

Flights on SLC–MSY arrive on time 86% of the time over the last 12 months.

On-time rate86%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 435 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time86%
    Medianon time
    p9015 min
    Cancel0.7%
    Flights435

Why flights run late

Delay causes

  • Airline48%
  • Weather4%
  • Air traffic (NAS)29%
  • Late aircraft18%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SLC → MSY

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 85% to 88% on time.

  • Mornings88% on time · p90 15 min · 330 flights
  • Middays86% on time · p90 20 min · 539 flights
  • Afternoons85% on time · p90 30 min · 323 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 84% to 90% on time.

  • Sundays90% on time · p90 10 min · 176 flights · limited
  • Wednesdays88% on time · p90 15 min · 159 flights · limited
  • Fridays86% on time · p90 15 min · 181 flights · limited
  • Tuesdays86% on time · p90 15 min · 158 flights · limited
  • Mondays85% on time · p90 20 min · 182 flights · limited
  • Saturdays84% on time · p90 20 min · 160 flights · limited
  • Thursdays84% on time · p90 25 min · 176 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.