Historical on-time performance
Grand Junction to Phoenix
438 miData through May 2026Source: US DOT · BTS
Flights on GJT–PHX arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.5%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-time83%Medianon timep9035 minCancel0.5%Flights944
Why flights run late
Delay causes
- Airline73%
- Weather3%
- Air traffic (NAS)7%
- Late aircraft17%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline20%
- Weather40%
- Air traffic (NAS)40%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 5 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 GJT → PHX
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 77% to 88% on time.
- Mornings88% on time · p90 15 min · 1,084 flights
- Middays88% on time · p90 20 min · 946 flights
- Afternoons88% on time · p90 15 min · 269 flights
- Evenings77% on time · p90 40 min · 742 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 83% to 90% on time.
- Wednesdays90% on time · p90 10 min · 409 flights
- Tuesdays88% on time · p90 20 min · 378 flights
- Thursdays86% on time · p90 20 min · 467 flights
- Fridays86% on time · p90 20 min · 453 flights
- Sundays85% on time · p90 30 min · 469 flights
- Mondays83% on time · p90 40 min · 453 flights
- Saturdays83% on time · p90 30 min · 416 flights
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