Best Time to Fly SGU to SLC: On-Time Stats by Hour & Airline
St George Regional → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
1,719 flights were scheduled from St. George (SGU) to Salt Lake City (SLC) in the last 12 months, and 93.6% of those that flew arrived on time, 16.0 points above the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
December has been the best month (96% on time) and Saturday the weakest day of the week (92%).
0.2% of flights were cancelled, versus 1.8% nationally.
SGU to SLC 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 | 93.6% | 71 min | 0.2% | 1,719 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SGU to SLC
On-time arrival % by scheduled departure hour (local time), 3,246 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 97.7% | 0.0% | 171 |
| 6am–7am | 97.9% | 0.0% | 521 |
| 7am–8am | 100.0% | 0.0% | 32 |
| 8am–9am | 96.9% | 0.0% | 194 |
| 9am–10am | 93.8% | 0.0% | 244 |
| 11am–12pm | 91.0% | 0.3% | 625 |
| 1pm–2pm | 93.1% | 0.2% | 423 |
| 3pm–4pm | 88.2% | 0.0% | 701 |
| 5pm–6pm | 93.5% | 0.0% | 123 |
| 6pm–7pm | 86.8% | 0.0% | 38 |
| 7pm–8pm | 91.3% | 0.0% | 174 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SGU to SLC
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) | 91.7% | -1.3 pts | 0.0% | 60 |
| Christmas & New Year (Dec 20 - Jan 3) | 92.8% | -0.2 pts | 0.0% | 97 |
| Summer peak (Jun 15 - Aug 15) | 92.3% | -0.7 pts | 0.0% | 532 |
| All other days | 93.0% | — | 0.1% | 2,557 |
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).