Best Time to Fly BTM to SLC: On-Time Stats by Hour & Airline
Bert Mooney → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
361 flights were scheduled from Butte (BTM) to Salt Lake City (SLC) in the last 12 months, and 95.2% of those that flew arrived on time, 17.6 points above the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (99% on time) and Thursday the weakest day of the week (92%).
0.6% of flights were cancelled, versus 1.8% nationally.
BTM 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 | 95.2% | 206 min | 0.6% | 361 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BTM to SLC
On-time arrival % by scheduled departure hour (local time), 848 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 11am–12pm | 94.0% | 0.0% | 149 |
| 1pm–2pm | Limited data | 1 | |
| 3pm–4pm | 90.9% | 0.0% | 34 |
| 5pm–6pm | 97.8% | 0.0% | 46 |
| 6pm–7pm | 95.4% | 0.7% | 618 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BTM 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) | Limited data | 19 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 86.8% | -9.3 pts | 0.0% | 38 |
| Summer peak (Jun 15 - Aug 15) | 93.5% | -2.7 pts | 0.0% | 139 |
| All other days | 96.1% | — | 0.6% | 652 |
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).