OnTimeStats

Historical on-time performance

New York to Jacksonville

829 miData through May 2026Source: US DOT · BTS

Flights on JFK–JAX arrive on time 71% of the time over the last 12 months.

On-time rate71%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled3.7%of scheduled flights

based on 994 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.

  • JetBlue Airways
    On-time71%
    Medianon time
    p9060 min
    Cancel3.5%
    Flights892
  • Delta Air Lines
    On-time70%
    Medianon time
    p9055 min
    Cancel5.9%
    Flights102

Why flights run late

Delay causes

  • Airline38%
  • Weather3%
  • Air traffic (NAS)18%
  • Late aircraft40%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline14%
  • Weather49%
  • Air traffic (NAS)38%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 37 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 JFK → JAX

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 — 84% on time.

  • Mornings84% on time · p90 25 min · 1,577 flights
  • Middays76% on time · p90 50 min · 787 flights
  • Afternoons68% on time · p90 75 min · 1,147 flights
  • Evenings66% on time · p90 80 min · 841 flights
  • Overnights64% on time · p90 90 min · 362 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 79% on time.

  • Tuesdays79% on time · p90 40 min · 657 flights
  • Wednesdays79% on time · p90 40 min · 657 flights
  • Thursdays75% on time · p90 70 min · 678 flights
  • Fridays73% on time · p90 60 min · 687 flights
  • Mondays72% on time · p90 60 min · 688 flights
  • Saturdays71% on time · p90 65 min · 667 flights
  • Sundays71% on time · p90 65 min · 680 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.