Salt Lake City (SLC) to Butte (BTM): On-Time Performance
Data through May 2026
Salt Lake City (SLC) to Butte (BTM) is a thinner route than most in this dataset — 361 departures over the past year, roughly 7 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 92% arrived on time, comfortably above the national average of 78%.
- On-time
- 92%
- arrived <15 min late
- Avg delay
- 6 min
- completed flights
- Cancelled
- 0.3%
- Flights/day
- 0.99
- last 12 months
- Duration
- 1h 27m
- scheduled
- Distance
- 357 mi
Monthly on-time trend
Best time to fly from SLC to BTM
Departure time makes little difference on this route — on-time rates stay within a few points across the day.
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 87% | 5 min |
| Tuesday | 91% | 6 min |
| Wednesday | 93% | 5 min |
| Thursday | 89% | 8 min |
| Friday | 94% | 7 min |
| Saturday | 93% | 6 min |
| Sundaybest | 95% | 4 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Airline operations81%
- National airspace system7%
- Weather13%
Frequently asked questions
- How often are flights from SLC to BTM delayed?
- 8% of SLC–BTM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 6 minutes.
- What is the best time of day to fly from SLC to BTM?
- Departures around 3 p.m. have the best record (93% on-time), while departures around 9 a.m. have the worst (88%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to BTM?
- The scheduled SLC–BTM flight time averages 1h 27m over 357 miles. Actual arrival times vary — flights on this route land 15+ minutes late 8% of the time.
- How often are SLC to BTM flights cancelled?
- 0.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SLC to BTM?
- June 2024 was the roughest month in this dataset, with only 79% of arrivals on time. The best was June 2025 at 100%. If your dates are flexible, that 21-point gap is worth planning around.
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Based on 905 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.