Historical on-time performance
Phoenix to Grand Junction
438 miData through May 2026Source: US DOT · BTS
Flights on PHX–GJT arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 944 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time82%Medianon timep9035 minCancel0.3%Flights944
Why flights run late
Delay causes
- Airline64%
- Weather3%
- Air traffic (NAS)8%
- Late aircraft25%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather67%
- Air traffic (NAS)33%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 3 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 → GJT
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 82% to 89% on time.
- Middays89% on time · p90 10 min · 255 flights
- Mornings88% on time · p90 15 min · 951 flights
- Overnights86% on time · p90 25 min · 712 flights
- Evenings84% on time · p90 20 min · 243 flights
- Afternoons82% on time · p90 25 min · 880 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 91% on time.
- Wednesdays91% on time · p90 10 min · 411 flights
- Tuesdays89% on time · p90 15 min · 385 flights
- Mondays86% on time · p90 20 min · 443 flights
- Thursdays85% on time · p90 20 min · 467 flights
- Sundays84% on time · p90 30 min · 469 flights
- Fridays83% on time · p90 25 min · 452 flights
- Saturdays82% on time · p90 30 min · 416 flights
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