Best Time to Fly GJT to PHX: On-Time Stats by Hour & Airline
Grand Junction Regional → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
983 flights were scheduled from Grand Junction (GJT) to Phoenix (PHX) in the last 12 months, and 83.0% of those that flew arrived on time, 5.4 points above the US average of 77.6%.
SkyWest Airlines was the most punctual of the 2 airlines on the route at 83.9%, while Envoy Air trailed at 62.5%.
December has been the best month (92% on time) and Monday the weakest day of the week (84%).
0.5% of flights were cancelled, versus 1.8% nationally.
GJT to PHX 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 | 83.9% | 103 min | 0.5% | 943 |
| Envoy Air | 62.5% | 42 min | 0.0% | 40 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly GJT to PHX
On-time arrival % by scheduled departure hour (local time), 2,013 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.7% | 0.0% | 252 |
| 6am–7am | 95.4% | 0.5% | 195 |
| 7am–8am | 87.1% | 0.5% | 202 |
| 8am–9am | 83.3% | 0.0% | 78 |
| 11am–12pm | 90.4% | 0.0% | 282 |
| 12pm–1pm | 86.1% | 0.6% | 335 |
| 2pm–3pm | Limited data | 19 | |
| 3pm–4pm | 89.0% | 0.0% | 165 |
| 6pm–7pm | 75.4% | 0.2% | 453 |
| 7pm–8pm | Limited data | 29 | |
| 9pm–10pm | 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 GJT to PHX
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) | 82.6% | -3.7 pts | 0.0% | 46 |
| Christmas & New Year (Dec 20 - Jan 3) | 91.1% | +4.8 pts | 0.0% | 90 |
| Summer peak (Jun 15 - Aug 15) | 81.8% | -4.4 pts | 0.0% | 359 |
| All other days | 86.3% | — | 0.4% | 1,518 |
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).