OnTimeStats

Historical on-time performance

Denver to Tulsa

541 miData through May 2026Source: US DOT · BTS

Flights on DEN–TUL arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 2,344 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlinesbest
    On-time84%
    Medianon time
    p9025 min
    Cancel0.7%
    Flights1,109
  • United Airlines
    On-time73%
    Medianon time
    p9055 min
    Cancel0.9%
    Flights339
  • Southwest Airlines
    On-time63%
    Medianon time
    p9060 min
    Cancel1.1%
    Flights896

Why flights run late

Delay causes

  • Airline31%
  • Weather6%
  • Air traffic (NAS)16%
  • Late aircraft48%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline10%
  • Weather76%
  • Air traffic (NAS)14%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 21 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 DEN → 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 65% to 85% on time.

  • Mornings85% on time · p90 20 min · 764 flights
  • Middays83% on time · p90 25 min · 2,319 flights
  • Overnights68% on time · p90 65 min · 1,549 flights
  • Evenings68% on time · p90 65 min · 1,406 flights
  • Afternoons65% on time · p90 45 min · 752 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 78% on time.

  • Tuesdays78% on time · p90 45 min · 951 flights
  • Wednesdays77% on time · p90 40 min · 946 flights
  • Mondays76% on time · p90 45 min · 998 flights
  • Saturdays75% on time · p90 40 min · 864 flights
  • Sundays74% on time · p90 45 min · 1,029 flights
  • Thursdays72% on time · p90 45 min · 1,002 flights
  • Fridays71% on time · p90 50 min · 1,002 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.