Best Time to Fly PHX to SGU: On-Time Stats by Hour & Airline
Phoenix Sky Harbor International → St George Regional
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 83.6% of Phoenix (PHX) to St. George (SGU) flights arrived on time (890 scheduled flights). That is 6.0 points above the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (88% on time) and Friday the weakest day of the week (80%).
0.1% of flights were cancelled, versus 1.8% nationally.
PHX to SGU 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 | 83.6% | 77 min | 0.1% | 890 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHX to SGU
On-time arrival % by scheduled departure hour (local time), 1,705 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 80.7% | 0.0% | 328 |
| 9am–10am | 79.8% | 0.0% | 89 |
| 10am–11am | 76.1% | 0.0% | 88 |
| 11am–12pm | 76.9% | 0.0% | 122 |
| 12pm–1pm | 91.7% | 0.0% | 60 |
| 1pm–2pm | 89.8% | 0.0% | 88 |
| 2pm–3pm | 79.7% | 0.0% | 148 |
| 4pm–5pm | 78.7% | 0.0% | 89 |
| 5pm–6pm | 81.4% | 0.0% | 86 |
| 7pm–8pm | 91.1% | 0.0% | 45 |
| 8pm–9pm | 86.6% | 0.0% | 97 |
| 9pm–10pm | 85.5% | 0.0% | 290 |
| 10pm–11pm | 83.8% | 0.0% | 150 |
| 11pm–12am | Limited data | 25 | |
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 SGU
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) | 81.2% | -2.3 pts | 0.0% | 32 |
| Christmas & New Year (Dec 20 - Jan 3) | 86.7% | +3.1 pts | 0.0% | 76 |
| Summer peak (Jun 15 - Aug 15) | 75.9% | -7.7 pts | 0.0% | 232 |
| All other days | 83.6% | — | 0.1% | 1,365 |
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).