OnTimeStats

Historical on-time performance

New Orleans to Denver

1,062 miData through May 2026Source: US DOT · BTS

Flights on MSY–DEN arrive on time 80% of the time over the last 12 months.

On-time rate80%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 2,108 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time86%
    Medianon time
    p9025 min
    Cancel0.3%
    Flights1,016
  • Frontier Airlines
    On-time82%
    Medianon time
    p9040 min
    Cancel0.0%
    Flights33
  • Southwest Airlines
    On-time75%
    Medianon time
    p9040 min
    Cancel0.3%
    Flights1,059

Why flights run late

Delay causes

  • Airline21%
  • Weather8%
  • Air traffic (NAS)37%
  • Late aircraft34%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

When flights don't go

Why flights were cancelled

  • Airline67%
  • Weather17%
  • Air traffic (NAS)17%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 6 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 → DEN

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 — 89% on time.

  • Mornings89% on time · p90 15 min · 2,389 flights
  • Middays82% on time · p90 25 min · 1,149 flights
  • Afternoons75% on time · p90 45 min · 1,552 flights
  • Evenings67% on time · p90 60 min · 1,537 flights
  • Overnights64% on time · p90 60 min · 284 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 76% to 82% on time.

  • Wednesdays82% on time · p90 25 min · 909 flights
  • Tuesdays81% on time · p90 40 min · 854 flights
  • Mondays81% on time · p90 40 min · 1,065 flights
  • Fridays78% on time · p90 35 min · 1,126 flights
  • Saturdays77% on time · p90 45 min · 765 flights
  • Sundays77% on time · p90 40 min · 1,079 flights
  • Thursdays76% on time · p90 40 min · 1,113 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.