OnTimeStats

Historical on-time performance

Omaha to Chicago

416 miData through May 2026Source: US DOT · BTS

Flights on OMA–ORD arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights

based on 2,790 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • American Airlines
    On-time74%
    Medianon time
    p9055 min
    Cancel2.6%
    Flights229
  • Envoy Air
    On-time73%
    Medianon time
    p9055 min
    Cancel2.8%
    Flights862
  • United Airlines
    On-time72%
    Medianon time
    p9060 min
    Cancel1.5%
    Flights1,302
  • Republic Airways
    On-time71%
    Medianon time
    p9060 min
    Cancel2.3%
    Flights87
  • SkyWest Airlines
    On-time69%
    Medianon time
    p9070 min
    Cancel3.9%
    Flights310

Why flights run late

Delay causes

  • Airline19%
  • Weather6%
  • Air traffic (NAS)36%
  • Late aircraft39%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline9%
  • Weather72%
  • Air traffic (NAS)19%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 64 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 OMA → 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 — 85% on time.

  • Mornings85% on time · p90 20 min · 2,453 flights
  • Middays79% on time · p90 40 min · 1,857 flights
  • Afternoons74% on time · p90 70 min · 1,425 flights
  • Evenings66% on time · p90 65 min · 1,642 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 80% on time.

  • Saturdays80% on time · p90 35 min · 985 flights
  • Tuesdays79% on time · p90 45 min · 1,039 flights
  • Thursdays78% on time · p90 45 min · 1,088 flights
  • Wednesdays77% on time · p90 45 min · 1,030 flights
  • Mondays77% on time · p90 45 min · 1,093 flights
  • Fridays75% on time · p90 50 min · 1,084 flights
  • Sundays74% on time · p90 60 min · 1,063 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.