OnTimeStats

Historical on-time performance

New Orleans to Philadelphia

1,088 miData through May 2026Source: US DOT · BTS

Flights on MSY–PHL arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled3.2%of scheduled flights

based on 813 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • American Airlinesbest
    On-time82%
    Medianon time
    p9045 min
    Cancel1.8%
    Flights550
  • PSA Airlines
    On-time70%
    Medianon time
    p9075 min
    Cancel6.1%
    Flights263

Why flights run late

Delay causes

  • Airline41%
  • Weather7%
  • Air traffic (NAS)8%
  • Late aircraft45%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline15%
  • Weather77%
  • Air traffic (NAS)8%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 26 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 MSY → PHL

All airlines · rolling 36 months (2023-06 .. 2026-05).

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 · 635 flights
  • Afternoons75% on time · p90 65 min · 920 flights
  • Middays74% on time · p90 70 min · 1,207 flights
  • Overnights70% on time · p90 80 min · 206 flights
  • Evenings62% on time · p90 85 min · 201 flights

Best day of week

Wednesdays are the most reliable day to fly this route — 84% on time.

  • Wednesdays84% on time · p90 30 min · 392 flights
  • Thursdays78% on time · p90 40 min · 493 flights
  • Tuesdays77% on time · p90 65 min · 371 flights
  • Saturdays76% on time · p90 65 min · 374 flights
  • Sundays73% on time · p90 65 min · 509 flights
  • Fridays73% on time · p90 65 min · 511 flights
  • Mondays72% on time · p90 75 min · 520 flights

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.