Historical on-time performance
Denver to Tucson
Flights on DEN–TUS arrive on time 76% of the time over the last 12 months.
based on 2,649 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.
- SkyWest AirlinesOn-time82%Medianon timep9045 minCancel0.4%Flights690
- United AirlinesOn-time81%Medianon timep9035 minCancel0.1%Flights750
- Southwest AirlinesOn-time70%Medianon timep9050 minCancel0.4%Flights1,209
Why flights run late
Delay causes
- Airline33%
- Weather3%
- Air traffic (NAS)13%
- Late aircraft51%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline22%
- Weather22%
- Air traffic (NAS)56%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 9 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 → TUS
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 · 1,629 flights
- Middays82% on time · p90 30 min · 1,974 flights
- Afternoons75% on time · p90 45 min · 1,742 flights
- Evenings67% on time · p90 65 min · 1,476 flights
- Overnights64% on time · p90 65 min · 1,003 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 80% on time.
- Wednesdays80% on time · p90 35 min · 1,094 flights
- Tuesdays79% on time · p90 40 min · 1,093 flights
- Mondays77% on time · p90 40 min · 1,151 flights
- Saturdays77% on time · p90 40 min · 996 flights
- Thursdays76% on time · p90 45 min · 1,145 flights
- Sundays76% on time · p90 45 min · 1,185 flights
- Fridays72% on time · p90 45 min · 1,160 flights
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