OnTimeStats

Historical on-time performance

Chicago to Huntsville

510 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–HSV arrive on time 65% of the time over the last 12 months.

On-time rate65%arrived within 15 min
p90 delay90 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights

based on 1,121 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time65%
    Medianon time
    p9090 min
    Cancel2.3%
    Flights1,121

Why flights run late

Delay causes

  • Airline41%
  • Weather15%
  • Air traffic (NAS)17%
  • Late aircraft27%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly ORD → HSV

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 60% to 74% on time.

  • Mornings74% on time · p90 50 min · 219 flights
  • Afternoons71% on time · p90 45 min · 126 flights · limited
  • Middays71% on time · p90 70 min · 1,016 flights
  • Evenings61% on time · p90 95 min · 862 flights
  • Overnights60% on time · p90 110 min · 348 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 60% to 71% on time.

  • Wednesdays71% on time · p90 65 min · 362 flights
  • Tuesdays69% on time · p90 70 min · 353 flights
  • Thursdays68% on time · p90 85 min · 369 flights
  • Mondays67% on time · p90 75 min · 380 flights
  • Saturdays66% on time · p90 75 min · 348 flights
  • Fridays65% on time · p90 80 min · 374 flights
  • Sundays60% on time · p90 100 min · 385 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.