OnTimeStats

Historical on-time performance

Philadelphia to Indianapolis

588 miData through May 2026Source: US DOT · BTS

Flights on PHL–IND arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled3.3%of scheduled flights

based on 1,444 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airwaysbest
    On-time76%
    Medianon time
    p9045 min
    Cancel4.4%
    Flights631
  • PSA Airlines
    On-time72%
    Medianon time
    p9040 min
    Cancel3.5%
    Flights171
  • American Airlines
    On-time69%
    Medianon time
    p9055 min
    Cancel2.0%
    Flights642

Why flights run late

Delay causes

  • Airline24%
  • Weather6%
  • Air traffic (NAS)16%
  • Late aircraft53%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline13%
  • Weather74%
  • Air traffic (NAS)13%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 47 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 PHL → 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 — 86% on time.

  • Mornings86% on time · p90 20 min · 806 flights
  • Middays81% on time · p90 35 min · 1,387 flights
  • Afternoons75% on time · p90 55 min · 848 flights
  • Overnights69% on time · p90 70 min · 616 flights
  • Evenings69% on time · p90 65 min · 932 flights

Best day of week

Wednesdays are the most reliable day to fly this route — 83% on time.

  • Wednesdays83% on time · p90 30 min · 647 flights
  • Tuesdays78% on time · p90 50 min · 657 flights
  • Fridays77% on time · p90 50 min · 681 flights
  • Mondays76% on time · p90 50 min · 672 flights
  • Thursdays75% on time · p90 50 min · 687 flights
  • Saturdays75% on time · p90 50 min · 573 flights
  • Sundays72% on time · p90 55 min · 672 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.