OnTimeStats

Historical on-time performance

Chicago to New Orleans

837 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–MSY arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights

based on 1,752 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Spirit Airlinesbest
    On-time93%
    Medianon time
    p905 min
    Cancel0.0%
    Flights71
  • Republic Airways
    On-time73%
    Medianon time
    p9060 min
    Cancel3.3%
    Flights214
  • United Airlines
    On-time76%
    Medianon time
    p9050 min
    Cancel1.0%
    Flights868
  • American Airlines
    On-time69%
    Medianon time
    p9090 min
    Cancel0.8%
    Flights366
  • Envoy Air
    On-time85%
    Medianon time
    p9030 min
    Cancel2.1%
    Flights233

Why flights run late

Delay causes

  • Airline34%
  • Weather6%
  • Air traffic (NAS)13%
  • Late aircraft47%
  • 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 ORD → 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 — 88% on time.

  • Mornings88% on time · p90 15 min · 1,554 flights
  • Middays82% on time · p90 35 min · 1,752 flights
  • Afternoons72% on time · p90 55 min · 341 flights
  • Evenings64% on time · p90 70 min · 1,004 flights
  • Overnights62% on time · p90 85 min · 857 flights

Best day of week

Tuesdays are the most reliable day to fly this route — 82% on time.

  • Tuesdays82% on time · p90 40 min · 728 flights
  • Saturdays76% on time · p90 45 min · 758 flights
  • Wednesdays76% on time · p90 55 min · 745 flights
  • Mondays76% on time · p90 45 min · 829 flights
  • Sundays76% on time · p90 55 min · 811 flights
  • Thursdays75% on time · p90 50 min · 806 flights
  • Fridays75% on time · p90 45 min · 833 flights
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Keep exploring

Related pages

Delay predictorfor this route→ORD airportChicago→MSY airportNew Orleans→Spirit Airlines on this routecarrier detail→Spirit Airlinesairline profile→

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.