OnTimeStats

Historical on-time performance

ORDEWR

Chicago to Newark

719 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–EWR arrive on time 65% of the time over the last 12 months.

On-time rate65%arrived within 15 min
Median delayon timetypical arrival
p90 delay100 min1 in 10 flights is worsetail risk
Cancelled2.2%of scheduled flights

based on 5,773 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airwaysbest
    On-time71%
    Medianon time
    p9025 min
    Cancel0.0%
    Flights34
  • United Airlines
    On-time67%
    Medianon time
    p90105 min
    Cancel1.2%
    Flights4,235
  • American Airlines
    On-time46%
    Median15 min
    p90115 min
    Cancel4.4%
    Flights482
  • Envoy Air
    On-time68%
    Medianon time
    p9070 min
    Cancel5.7%
    Flights901
  • Spirit Airlines
    On-time47%
    Median15 min
    p90150 min
    Cancel2.5%
    Flights121

Why flights run late

Delay causes

  • Airline15%
  • Weather8%
  • Air traffic (NAS)47%
  • Late aircraft30%
  • Security0%

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

Over time

On-time trend

By season

On-time rate by month

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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.