OnTimeStats

Historical on-time performance

Boston to New Orleans

1,368 miData through May 2026Source: US DOT · BTS

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

On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights

based on 770 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Linesbest
    On-time81%
    Medianon time
    p9025 min
    Cancel1.6%
    Flights316
  • JetBlue Airways
    On-time72%
    Medianon time
    p9070 min
    Cancel1.1%
    Flights454

Why flights run late

Delay causes

  • Airline29%
  • Weather3%
  • Air traffic (NAS)29%
  • Late aircraft39%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline50%
  • Weather50%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 10 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 BOS → MSY

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 64% to 80% on time.

  • Mornings80% on time · p90 30 min · 1,109 flights
  • Middays78% on time · p90 50 min · 1,161 flights
  • Afternoons64% on time · p90 75 min · 306 flights
  • Evenings64% on time · p90 50 min · 125 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 83% on time.

  • Saturdays83% on time · p90 35 min · 379 flights
  • Tuesdays82% on time · p90 25 min · 355 flights
  • Wednesdays78% on time · p90 30 min · 356 flights
  • Fridays76% on time · p90 55 min · 411 flights
  • Sundays75% on time · p90 50 min · 410 flights
  • Thursdays74% on time · p90 45 min · 404 flights
  • Mondays72% on time · p90 55 min · 407 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.