OnTimeStats

Historical on-time performance

Chicago to Windsor Locks

783 miData through May 2026Source: US DOT · BTS

Flights on ORD–BDL arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled2.4%of scheduled flights

based on 2,083 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.

  • Envoy Air
    On-time89%
    Medianon time
    p9015 min
    Cancel0.0%
    Flights73
  • SkyWest Airlines
    On-time76%
    Medianon time
    p9050 min
    Cancel1.4%
    Flights139
  • Republic Airways
    On-time76%
    Medianon time
    p9060 min
    Cancel3.9%
    Flights568
  • United Airlines
    On-time73%
    Medianon time
    p9050 min
    Cancel1.3%
    Flights817
  • American Airlines
    On-time64%
    Medianon time
    p9085 min
    Cancel3.1%
    Flights486

Why flights run late

Delay causes

  • Airline29%
  • Weather5%
  • Air traffic (NAS)18%
  • Late aircraft48%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline2%
  • Weather86%
  • Air traffic (NAS)12%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 50 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 ORD → BDL

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 61% to 83% on time.

  • Mornings83% on time · p90 25 min · 1,745 flights
  • Middays83% on time · p90 30 min · 1,843 flights
  • Afternoons72% on time · p90 55 min · 681 flights
  • Evenings67% on time · p90 70 min · 1,899 flights
  • Overnights61% on time · p90 100 min · 194 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 79% on time.

  • Saturdays79% on time · p90 40 min · 802 flights
  • Tuesdays79% on time · p90 45 min · 859 flights
  • Thursdays78% on time · p90 40 min · 954 flights
  • Wednesdays76% on time · p90 45 min · 883 flights
  • Mondays75% on time · p90 55 min · 950 flights
  • Fridays74% on time · p90 55 min · 967 flights
  • Sundays73% on time · p90 55 min · 949 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.