OnTimeStats

Historical on-time performance

Indianapolis to Philadelphia

587 miData through Dec 2025Source: US DOT · BTS

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

On-time rate75%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights

based on 1,424 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airwaysbest
    On-time84%
    Medianon time
    p9025 min
    Cancel0.7%
    Flights720
  • American Airlines
    On-time66%
    Medianon time
    p9070 min
    Cancel2.4%
    Flights585
  • PSA Airlines
    On-time64%
    Medianon time
    p90110 min
    Cancel1.7%
    Flights119

Why flights run late

Delay causes

  • Airline34%
  • Weather2%
  • Air traffic (NAS)22%
  • Late aircraft42%
  • 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 IND → PHL

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 — 91% on time.

  • Mornings91% on time · p90 10 min · 1,846 flights
  • Middays83% on time · p90 30 min · 1,248 flights
  • Afternoons66% on time · p90 75 min · 881 flights
  • Evenings62% on time · p90 80 min · 400 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 85% on time.

  • Wednesdays85% on time · p90 25 min · 618 flights
  • Saturdays82% on time · p90 30 min · 538 flights
  • Sundays80% on time · p90 35 min · 648 flights
  • Mondays80% on time · p90 35 min · 646 flights
  • Tuesdays80% on time · p90 40 min · 628 flights
  • Thursdays80% on time · p90 40 min · 656 flights
  • Fridays79% on time · p90 40 min · 648 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.