Historical on-time performance
Tucson to Denver
Flights on TUS–DEN arrive on time 82% of the time over the last 12 months.
based on 2,650 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.
- United AirlinesOn-time84%Medianon timep9030 minCancel0.7%Flights751
- SkyWest AirlinesOn-time83%Medianon timep9030 minCancel0.7%Flights690
- Southwest AirlinesOn-time79%Medianon timep9040 minCancel0.7%Flights1,209
Why flights run late
Delay causes
- Airline31%
- Weather7%
- Air traffic (NAS)31%
- Late aircraft30%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline33%
- Weather17%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 18 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 TUS → 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 — 92% on time.
- Mornings92% on time · p90 5 min · 3,168 flights
- Middays80% on time · p90 35 min · 2,248 flights
- Evenings79% on time · p90 45 min · 898 flights
- Afternoons69% on time · p90 65 min · 1,509 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 85% on time.
- Saturdays85% on time · p90 25 min · 997 flights
- Tuesdays84% on time · p90 35 min · 1,092 flights
- Sundays83% on time · p90 35 min · 1,184 flights
- Wednesdays82% on time · p90 30 min · 1,093 flights
- Mondays82% on time · p90 35 min · 1,147 flights
- Thursdays81% on time · p90 40 min · 1,151 flights
- Fridays81% on time · p90 40 min · 1,161 flights
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