OnTimeStats

Historical on-time performance

Seattle to New Orleans

2,086 miData through Dec 2025Source: US DOT · BTS

Flights on SEA–MSY arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights

based on 658 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time73%
    Medianon time
    p9030 min
    Cancel1.1%
    Flights658

Why flights run late

Delay causes

  • Airline47%
  • Weather0%
  • Air traffic (NAS)24%
  • Late aircraft29%
  • 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 SEA → 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 75% to 85% on time.

  • Evenings85% on time · p90 20 min · 72 flights · limited
  • Overnights79% on time · p90 25 min · 821 flights
  • Mornings76% on time · p90 35 min · 315 flights
  • Middays75% on time · p90 30 min · 802 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 83% on time.

  • Tuesdays83% on time · p90 20 min · 264 flights
  • Saturdays79% on time · p90 30 min · 270 flights
  • Mondays77% on time · p90 35 min · 289 flights
  • Sundays76% on time · p90 25 min · 304 flights
  • Fridays76% on time · p90 30 min · 304 flights
  • Wednesdays76% on time · p90 30 min · 278 flights
  • Thursdays74% on time · p90 25 min · 302 flights
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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.