OnTimeStats

Historical on-time performance

Miami to Indianapolis

1,020 miData through May 2026Source: US DOT · BTS

Flights on MIA–IND arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights

based on 754 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • American Airlines
    On-time73%
    Medianon time
    p9065 min
    Cancel1.5%
    Flights754

Why flights run late

Delay causes

  • Airline35%
  • Weather2%
  • Air traffic (NAS)18%
  • Late aircraft45%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather82%
  • Air traffic (NAS)18%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 11 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 → IND

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 89% on time.

  • Mornings89% on time · p90 15 min · 342 flights
  • Middays75% on time · p90 45 min · 351 flights
  • Afternoons64% on time · p90 85 min · 671 flights
  • Evenings63% on time · p90 85 min · 211 flights
  • Overnights62% on time · p90 70 min · 1,057 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 63% to 74% on time.

  • Wednesdays74% on time · p90 60 min · 327 flights
  • Tuesdays71% on time · p90 60 min · 345 flights
  • Thursdays70% on time · p90 55 min · 375 flights
  • Saturdays67% on time · p90 70 min · 434 flights
  • Fridays66% on time · p90 65 min · 389 flights
  • Mondays65% on time · p90 70 min · 379 flights
  • Sundays63% on time · p90 75 min · 383 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.