Best Time to Fly PHX to GJT: On-Time Stats by Hour & Airline
Phoenix Sky Harbor International → Grand Junction Regional
Data through July 2026 · Last updated October 18, 2026
982 flights were scheduled from Phoenix (PHX) to Grand Junction (GJT) in the last 12 months, and 81.1% of those that flew arrived on time, 3.5 points above the US average of 77.6%.
SkyWest Airlines was the most punctual of the 2 airlines on the route at 81.6%, while Envoy Air trailed at 69.2%.
September has been the best month (92% on time) and Saturday the weakest day of the week (80%).
0.3% of flights were cancelled, versus 1.8% nationally.
PHX to GJT on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 81.6% | 74 min | 0.3% | 943 |
| Envoy Air | 69.2% | 33 min | 0.0% | 39 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHX to GJT
On-time arrival % by scheduled departure hour (local time), 2,011 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 1 | |
| 8am–9am | 88.4% | 0.0% | 447 |
| 9am–10am | 86.1% | 1.1% | 182 |
| 10am–11am | Limited data | 4 | |
| 12pm–1pm | 93.0% | 0.0% | 86 |
| 1pm–2pm | 81.0% | 0.0% | 79 |
| 3pm–4pm | 79.6% | 0.3% | 334 |
| 4pm–5pm | 79.8% | 0.3% | 289 |
| 6pm–7pm | 86.7% | 0.0% | 30 |
| 7pm–8pm | 83.0% | 0.0% | 159 |
| 8pm–9pm | 81.9% | 0.0% | 171 |
| 9pm–10pm | 84.4% | 0.0% | 218 |
| 10pm–11pm | Limited data | 8 | |
| 11pm–12am | Limited data | 3 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PHX to GJT
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 73.3% | -10.7 pts | 0.0% | 45 |
| Christmas & New Year (Dec 20 - Jan 3) | 88.9% | +4.8 pts | 0.0% | 90 |
| Summer peak (Jun 15 - Aug 15) | 83.3% | -0.8 pts | 0.0% | 359 |
| All other days | 84.1% | — | 0.3% | 1,517 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).