OnTimeStats

Historical on-time performance

Birmingham to Miami

661 miData through May 2026Source: US DOT · BTS

Flights on BHM–MIA arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 674 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Envoy Air
    On-time85%
    Medianon time
    p9020 min
    Cancel0.7%
    Flights674

Why flights run late

Delay causes

  • Airline30%
  • Weather12%
  • Air traffic (NAS)16%
  • Late aircraft42%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather40%
  • Air traffic (NAS)60%
  • Security0%

Most cancellations here are attributed to Air traffic (NAS). Shares are among 5 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 BHM → MIA

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 68% to 87% on time.

  • Mornings87% on time · p90 15 min · 1,132 flights
  • Middays85% on time · p90 15 min · 138 flights · limited
  • Evenings68% on time · p90 70 min · 820 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.

  • Wednesdays84% on time · p90 30 min · 292 flights
  • Tuesdays83% on time · p90 25 min · 294 flights
  • Fridays80% on time · p90 50 min · 305 flights
  • Mondays78% on time · p90 40 min · 309 flights
  • Thursdays77% on time · p90 45 min · 303 flights
  • Saturdays76% on time · p90 45 min · 311 flights
  • Sundays75% on time · p90 55 min · 308 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.