OnTimeStats

Historical on-time performance

Indianapolis to Boston

818 miData through Dec 2025Source: US DOT · BTS

Flights on IND–BOS arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 1,928 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time75%
    Medianon time
    p9065 min
    Cancel1.6%
    Flights1,928

Why flights run late

Delay causes

  • Airline15%
  • Weather6%
  • Air traffic (NAS)56%
  • Late aircraft22%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly IND → BOS

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

Best time of day

Mornings are the most reliable time of day to fly this route — 92% on time.

  • Mornings92% on time · p90 10 min · 1,982 flights
  • Middays84% on time · p90 30 min · 1,072 flights
  • Overnights76% on time · p90 50 min · 90 flights · limited
  • Afternoons74% on time · p90 60 min · 1,179 flights
  • Evenings71% on time · p90 70 min · 1,451 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 77% to 88% on time.

  • Saturdays88% on time · p90 15 min · 545 flights
  • Wednesdays85% on time · p90 30 min · 867 flights
  • Tuesdays83% on time · p90 35 min · 869 flights
  • Sundays80% on time · p90 45 min · 841 flights
  • Mondays80% on time · p90 45 min · 878 flights
  • Thursdays79% on time · p90 50 min · 906 flights
  • Fridays77% on time · p90 50 min · 868 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.