Historical on-time performance
Tulsa to Denver
Flights on TUL–DEN arrive on time 78% of the time over the last 12 months.
based on 2,341 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.
- Southwest AirlinesOn-time81%Medianon timep9035 minCancel1.1%Flights896
- SkyWest AirlinesOn-time78%Medianon timep9045 minCancel0.9%Flights1,107
- United AirlinesOn-time74%Medianon timep9040 minCancel1.2%Flights338
Why flights run late
Delay causes
- Airline29%
- Weather10%
- Air traffic (NAS)39%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline13%
- Weather79%
- Air traffic (NAS)8%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 24 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 TUL → DEN
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 — 87% on time.
- Mornings87% on time · p90 15 min · 2,991 flights
- Middays81% on time · p90 35 min · 1,379 flights
- Afternoons74% on time · p90 40 min · 316 flights
- Overnights73% on time · p90 60 min · 395 flights
- Evenings69% on time · p90 70 min · 1,407 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 81% on time.
- Fridays81% on time · p90 35 min · 953 flights
- Thursdays81% on time · p90 30 min · 966 flights
- Tuesdays81% on time · p90 40 min · 904 flights
- Mondays81% on time · p90 30 min · 954 flights
- Wednesdays80% on time · p90 40 min · 901 flights
- Saturdays80% on time · p90 30 min · 827 flights
- Sundays78% on time · p90 40 min · 983 flights
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