Best Time to Fly SLC to GTF: On-Time Stats by Hour & Airline
Salt Lake City International → Great Falls International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 93.4% of Salt Lake City (SLC) to Great Falls (GTF) flights arrived on time (1,071 scheduled flights). That is 15.8 points above the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (95% on time) and December the worst month (90%).
The cancellation rate was 0.8% (US average 1.8%).
SLC to GTF 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 | 93.4% | 50 min | 0.8% | 1,071 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SLC to GTF
On-time arrival % by scheduled departure hour (local time), 2,108 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 96.7% | 0.0% | 392 |
| 10am–11am | 95.7% | 1.5% | 328 |
| 11am–12pm | Limited data | 8 | |
| 3pm–4pm | 91.8% | 0.5% | 208 |
| 4pm–5pm | 87.8% | 0.2% | 444 |
| 8pm–9pm | 95.6% | 0.4% | 252 |
| 9pm–10pm | 95.4% | 0.0% | 476 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SLC to GTF
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) | 94.7% | +1.2 pts | 0.0% | 38 |
| Christmas & New Year (Dec 20 - Jan 3) | 92.5% | -1.0 pts | 0.0% | 80 |
| Summer peak (Jun 15 - Aug 15) | 94.6% | +1.0 pts | 0.0% | 368 |
| All other days | 93.5% | — | 0.5% | 1,622 |
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).