OnTimeStats

Historical on-time performance

Boston to Indianapolis

818 miData through Dec 2025Source: US DOT · BTS

Flights on BOS–IND arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights

based on 1,929 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time82%
    Medianon time
    p9040 min
    Cancel1.5%
    Flights1,929

Why flights run late

Delay causes

  • Airline32%
  • Weather2%
  • Air traffic (NAS)14%
  • Late aircraft51%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly BOS → IND

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 75% to 91% on time.

  • Mornings91% on time · p90 5 min · 1,876 flights
  • Middays89% on time · p90 15 min · 1,808 flights
  • Afternoons84% on time · p90 30 min · 227 flights
  • Evenings75% on time · p90 60 min · 1,857 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 87% on time.

  • Wednesdays87% on time · p90 20 min · 867 flights
  • Saturdays87% on time · p90 20 min · 545 flights
  • Tuesdays86% on time · p90 20 min · 869 flights
  • Thursdays85% on time · p90 25 min · 905 flights
  • Fridays85% on time · p90 25 min · 869 flights
  • Mondays84% on time · p90 30 min · 878 flights
  • Sundays80% on time · p90 40 min · 841 flights
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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.