Historical on-time performance
Phoenix to Denver
602 miData through May 2026Source: US DOT · BTS
Flights on PHX–DEN arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 8,755 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirOn-time90%Medianon timep9010 minCancel0.0%Flights83
- United AirlinesbestOn-time82%Medianon timep9035 minCancel0.6%Flights2,379
- Frontier AirlinesOn-time79%Medianon timep9040 minCancel0.6%Flights1,394
- American AirlinesOn-time74%Medianon timep9055 minCancel0.6%Flights961
- Southwest AirlinesOn-time72%Medianon timep9050 minCancel1.1%Flights3,938
Why flights run late
Delay causes
- Airline24%
- Weather2%
- Air traffic (NAS)29%
- Late aircraft45%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline48%
- Weather27%
- Air traffic (NAS)25%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 73 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 PHX → 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 — 88% on time.
- Mornings88% on time · p90 15 min · 9,261 flights
- Middays79% on time · p90 30 min · 5,745 flights
- Evenings72% on time · p90 60 min · 4,560 flights
- Overnights71% on time · p90 60 min · 2,560 flights
- Afternoons68% on time · p90 70 min · 5,667 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 82% on time.
- Saturdays82% on time · p90 30 min · 3,411 flights
- Wednesdays81% on time · p90 35 min · 3,858 flights
- Tuesdays80% on time · p90 35 min · 3,721 flights
- Mondays77% on time · p90 40 min · 4,180 flights
- Fridays76% on time · p90 45 min · 4,214 flights
- Thursdays76% on time · p90 50 min · 4,217 flights
- Sundays75% on time · p90 45 min · 4,194 flights
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