OnTimeStats

Historical on-time performance

Chicago to Tulsa

585 miData through May 2026Source: US DOT · BTS

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

On-time rate72%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled2.5%of scheduled flights

based on 1,984 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.

  • Republic Airways
    On-time74%
    Medianon time
    p9020 min
    Cancel15.4%
    Flights39
  • SkyWest Airlines
    On-time73%
    Medianon time
    p9050 min
    Cancel1.4%
    Flights1,044
  • Envoy Air
    On-time70%
    Medianon time
    p9055 min
    Cancel2.8%
    Flights809
  • PSA Airlines
    On-time67%
    Medianon time
    p90100 min
    Cancel6.5%
    Flights92

Why flights run late

Delay causes

  • Airline30%
  • Weather13%
  • Air traffic (NAS)18%
  • Late aircraft39%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather66%
  • Air traffic (NAS)34%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 50 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 ORD → TUL

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 68% to 79% on time.

  • Middays79% on time · p90 40 min · 566 flights
  • Mornings79% on time · p90 40 min · 1,665 flights
  • Afternoons75% on time · p90 50 min · 1,315 flights
  • Evenings73% on time · p90 60 min · 438 flights
  • Overnights68% on time · p90 70 min · 1,306 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 77% on time.

  • Mondays77% on time · p90 50 min · 781 flights
  • Saturdays77% on time · p90 50 min · 704 flights
  • Tuesdays77% on time · p90 55 min · 727 flights
  • Wednesdays75% on time · p90 45 min · 722 flights
  • Thursdays74% on time · p90 45 min · 784 flights
  • Fridays71% on time · p90 50 min · 787 flights
  • Sundays71% on time · p90 65 min · 787 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.