Historical on-time performance
Salt Lake City to Butte
358 miData through May 2026Source: US DOT · BTS
Flights on SLC–BTM arrive on time 95% of the time over the last 12 months.
On-time rate95%arrived within 15 min
p90 delay5 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 275 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time95%Medianon timep905 minCancel0.4%Flights275
Why flights run late
Delay causes
- Airline92%
- Weather7%
- Air traffic (NAS)1%
- Late aircraft0%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 1 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SLC → BTM
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 89% to 97% on time.
- Overnights97% on time · p90 on time · 102 flights · limited
- Middays93% on time · p90 5 min · 246 flights
- Evenings93% on time · p90 10 min · 108 flights · limited
- Afternoons92% on time · p90 5 min · 878 flights
- Mornings89% on time · p90 15 min · 248 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 88% to 95% on time.
- Wednesdays95% on time · p90 5 min · 237 flights
- Sundays94% on time · p90 5 min · 239 flights
- Fridays94% on time · p90 5 min · 240 flights
- Saturdays93% on time · p90 5 min · 223 flights
- Tuesdays93% on time · p90 5 min · 170 flights · limited
- Thursdays89% on time · p90 20 min · 236 flights
- Mondays88% on time · p90 15 min · 237 flights
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