Grand Junction (GJT) to Phoenix (PHX): On-Time Performance
Data through May 2026
The calendar drives reliability on GJT–PHX. January 2025 flights landed on schedule 96% of the time, but June 2025 dropped to 77% — a gap of 19 points. Across the full period the route averages 86% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 74%), which matters most in the rough months.
- On-time
- 86%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.3%
- Flights/day
- 2.7
- last 12 months
- Duration
- 1h 47m
- scheduled
- Distance
- 438 mi
Best airline from GJT to PHX
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 87% | 14 min | 0.3% | 1,915 |
| Envoy Air | 66% | 25 min | 1.0% | 98 |
Monthly on-time trend
Best time to fly from GJT to PHX
Aim for departures around 6 a.m. (96% on-time); avoid 6 p.m. departures (76%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 14 min |
| Tuesday | 86% | 14 min |
| Wednesdaybest | 89% | 11 min |
| Thursday | 87% | 13 min |
| Friday | 85% | 12 min |
| Saturday | 86% | 18 min |
| Sunday | 86% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft16%
- Airline operations73%
- National airspace system8%
- Weather3%
Frequently asked questions
- How often are flights from GJT to PHX delayed?
- 14% of GJT–PHX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 14 minutes.
- Which airline is most reliable from GJT to PHX?
- SkyWest Airlines has the best on-time record on this route at 87%, based on 1,915 flights. 2 airlines flew GJT–PHX frequently enough to compare in this period.
- What is the best time of day to fly from GJT to PHX?
- Departures around 6 a.m. have the best record (96% on-time), while departures around 6 p.m. have the worst (76%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GJT to PHX?
- The scheduled GJT–PHX flight time averages 1h 47m over 438 miles. Actual arrival times vary — flights on this route land 15+ minutes late 14% of the time.
- How often are GJT to PHX flights cancelled?
- 0.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from GJT to PHX?
- June 2025 was the roughest month in this dataset, with only 77% of arrivals on time. The best was January 2025 at 96%. If your dates are flexible, that 19-point gap is worth planning around.
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Based on 2,013 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.