OnTimeStats

Historical on-time performance

Indianapolis to Baltimore

515 miData through Dec 2025Source: US DOT · BTS

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

On-time rate82%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights

based on 1,216 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time82%
    Medianon time
    p9025 min
    Cancel1.0%
    Flights1,216

Why flights run late

Delay causes

  • Airline26%
  • Weather2%
  • Air traffic (NAS)24%
  • Late aircraft47%
  • 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 → BWI

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 — 93% on time.

  • Mornings93% on time · p90 5 min · 1,416 flights
  • Middays90% on time · p90 10 min · 684 flights
  • Afternoons71% on time · p90 40 min · 434 flights
  • Evenings68% on time · p90 60 min · 719 flights
  • Overnights65% on time · p90 70 min · 300 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 76% to 86% on time.

  • Wednesdays86% on time · p90 20 min · 505 flights
  • Tuesdays86% on time · p90 15 min · 504 flights
  • Saturdays84% on time · p90 25 min · 380 flights
  • Fridays83% on time · p90 30 min · 543 flights
  • Thursdays82% on time · p90 30 min · 533 flights
  • Mondays82% on time · p90 25 min · 537 flights
  • Sundays76% on time · p90 35 min · 551 flights
Advertisement

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.