Historical on-time performance
Denver to Butte
578 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–BTM arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights
based on 306 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time70%Medianon timep9065 minCancel2.3%Flights306
Why flights run late
Delay causes
- Airline35%
- Weather13%
- Air traffic (NAS)28%
- Late aircraft24%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DEN → BTM
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best day of week
On-time rates are fairly even by day on this route — ranging from 62% to 79% on time.
- Saturdays79% on time · p90 25 min · 52 flights · limited
- Tuesdays73% on time · p90 85 min · 52 flights · limited
- Fridays69% on time · p90 45 min · 52 flights · limited
- Mondays69% on time · p90 45 min · 52 flights · limited
- Wednesdays67% on time · p90 55 min · 52 flights · limited
- Thursdays67% on time · p90 120 min · 51 flights · limited
- Sundays62% on time · p90 80 min · 52 flights · limited
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