Historical on-time performance
Denver to Missoula
Flights on DEN–MSO arrive on time 80% of the time over the last 12 months.
based on 1,135 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- SkyWest AirlinesOn-time81%Medianon timep9040 minCancel0.2%Flights417
- United AirlinesOn-time79%Medianon timep9030 minCancel0.1%Flights718
Why flights run late
Delay causes
- Airline36%
- Weather6%
- Air traffic (NAS)12%
- Late aircraft47%
- Security0%
Most delay minutes here are attributed to Late aircraft.
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 2 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 DEN → MSO
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 15 min · 286 flights
- Middays83% on time · p90 30 min · 1,797 flights
- Afternoons78% on time · p90 40 min · 253 flights
- Evenings70% on time · p90 65 min · 1,088 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 82% on time.
- Thursdays82% on time · p90 40 min · 473 flights
- Wednesdays81% on time · p90 35 min · 491 flights
- Tuesdays81% on time · p90 35 min · 465 flights
- Saturdays79% on time · p90 35 min · 481 flights
- Mondays77% on time · p90 50 min · 520 flights
- Sundays77% on time · p90 40 min · 475 flights
- Fridays75% on time · p90 55 min · 519 flights
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