OnTimeStats

Historical on-time performance

Denver to Tulsa

541 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–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)
Cancelled0.6%of scheduled flights

based on 2,401 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlinesbest
    On-time80%
    Medianon time
    p9035 min
    Cancel0.7%
    Flights1,200
  • United Airlines
    On-time66%
    Medianon time
    p9085 min
    Cancel0.0%
    Flights247
  • Southwest Airlines
    On-time64%
    Medianon time
    p9070 min
    Cancel0.6%
    Flights954

Why flights run late

Delay causes

  • Airline29%
  • Weather4%
  • Air traffic (NAS)19%
  • Late aircraft49%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

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 (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 66% to 83% on time.

  • Mornings83% on time · p90 20 min · 744 flights
  • Middays83% on time · p90 25 min · 2,213 flights
  • Overnights67% on time · p90 70 min · 1,477 flights
  • Evenings66% on time · p90 70 min · 1,343 flights
  • Afternoons66% on time · p90 45 min · 754 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 76% on time.

  • Tuesdays76% on time · p90 50 min · 933 flights
  • Mondays75% on time · p90 45 min · 975 flights
  • Saturdays75% on time · p90 45 min · 806 flights
  • Wednesdays74% on time · p90 50 min · 929 flights
  • Sundays74% on time · p90 50 min · 968 flights
  • Thursdays72% on time · p90 50 min · 957 flights
  • Fridays71% on time · p90 50 min · 965 flights
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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.