OnTimeStats

Historical on-time performance

Indianapolis to Houston

845 miData through May 2026Source: US DOT · BTS

Flights on IND–IAH arrive on time 80% of the time over the last 12 months.

On-time rate80%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 638 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlines
    On-time80%
    Medianon time
    p9040 min
    Cancel0.9%
    Flights638

Why flights run late

Delay causes

  • Airline23%
  • Weather4%
  • Air traffic (NAS)39%
  • Late aircraft34%
  • Security0%

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

When flights don't go

Why flights were cancelled

  • Airline17%
  • Weather83%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 6 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 IND → IAH

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 71% to 86% on time.

  • Mornings86% on time · p90 15 min · 1,007 flights
  • Middays84% on time · p90 15 min · 280 flights
  • Afternoons75% on time · p90 35 min · 211 flights
  • Evenings71% on time · p90 60 min · 840 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 77% to 83% on time.

  • Wednesdays83% on time · p90 25 min · 353 flights
  • Tuesdays80% on time · p90 25 min · 336 flights
  • Saturdays80% on time · p90 35 min · 304 flights
  • Fridays80% on time · p90 35 min · 351 flights
  • Mondays79% on time · p90 30 min · 341 flights
  • Thursdays78% on time · p90 35 min · 348 flights
  • Sundays77% on time · p90 40 min · 305 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.