OnTimeStats

Historical on-time performance

Miami to Windsor Locks

1,194 miData through May 2026Source: US DOT · BTS

Flights on MIA–BDL arrive on time 70% of the time over the last 12 months.

On-time rate70%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 338 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • American Airlines
    On-time70%
    Medianon time
    p9050 min
    Cancel0.9%
    Flights338

Why flights run late

Delay causes

  • Airline29%
  • Weather7%
  • Air traffic (NAS)15%
  • Late aircraft48%
  • Security1%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather100%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 3 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 MIA → 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 66% to 74% on time.

  • Middays74% on time · p90 55 min · 157 flights · limited
  • Overnights69% on time · p90 60 min · 744 flights
  • Evenings66% on time · p90 70 min · 438 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 77% on time.

  • Tuesdays77% on time · p90 45 min · 180 flights · limited
  • Fridays71% on time · p90 65 min · 201 flights
  • Wednesdays70% on time · p90 50 min · 186 flights · limited
  • Mondays68% on time · p90 45 min · 199 flights · limited
  • Sundays67% on time · p90 80 min · 214 flights
  • Saturdays66% on time · p90 65 min · 204 flights
  • Thursdays66% on time · p90 60 min · 206 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.