OnTimeStats

Historical on-time performance

New York to Chicago

740 miData through May 2026Source: US DOT · BTS

Flights on JFK–ORD arrive on time 67% of the time over the last 12 months.

On-time rate67%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled5.1%of scheduled flights

based on 1,741 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Republic Airways
    On-time70%
    Medianon time
    p9060 min
    Cancel6.0%
    Flights720
  • American Airlines
    On-time66%
    Medianon time
    p9085 min
    Cancel5.3%
    Flights471
  • JetBlue Airways
    On-time65%
    Medianon time
    p9090 min
    Cancel3.6%
    Flights550

Why flights run late

Delay causes

  • Airline24%
  • Weather2%
  • Air traffic (NAS)34%
  • Late aircraft39%
  • Security1%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline13%
  • Weather52%
  • Air traffic (NAS)35%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 88 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 → ORD

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 54% to 82% on time.

  • Mornings82% on time · p90 30 min · 2,510 flights
  • Middays81% on time · p90 35 min · 1,118 flights
  • Afternoons67% on time · p90 85 min · 2,071 flights
  • Evenings63% on time · p90 110 min · 1,128 flights
  • Overnights54% on time · p90 115 min · 235 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 70% to 78% on time.

  • Tuesdays78% on time · p90 50 min · 985 flights
  • Wednesdays76% on time · p90 55 min · 995 flights
  • Thursdays74% on time · p90 60 min · 1,015 flights
  • Saturdays73% on time · p90 65 min · 997 flights
  • Fridays73% on time · p90 60 min · 1,031 flights
  • Mondays72% on time · p90 75 min · 1,021 flights
  • Sundays70% on time · p90 85 min · 1,018 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.