OnTimeStats

Historical on-time performance

Huntsville to Chicago

510 miData through May 2026Source: US DOT · BTS

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

On-time rate65%arrived within 15 min
p90 delay95 min1 in 10 flights is worse (tail risk)
Cancelled2.8%of scheduled flights

based on 1,162 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
    p9095 min
    Cancel2.8%
    Flights1,162

Why flights run late

Delay causes

  • Airline51%
  • Weather9%
  • Air traffic (NAS)13%
  • Late aircraft25%
  • Security2%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline3%
  • Weather91%
  • Air traffic (NAS)6%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 32 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 HSV → ORD

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 — 74% on time.

  • Mornings74% on time · p90 65 min · 1,357 flights
  • Middays67% on time · p90 90 min · 565 flights
  • Afternoons62% on time · p90 85 min · 719 flights
  • Evenings43% on time · p90 85 min · 140 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 60% to 72% on time.

  • Wednesdays72% on time · p90 60 min · 375 flights
  • Tuesdays72% on time · p90 60 min · 388 flights
  • Thursdays69% on time · p90 70 min · 398 flights
  • Saturdays69% on time · p90 85 min · 386 flights
  • Mondays68% on time · p90 100 min · 415 flights
  • Fridays67% on time · p90 75 min · 417 flights
  • Sundays60% on time · p90 105 min · 406 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.