Historical on-time performance
Denver to Great Falls
Flights on DEN–GTF arrive on time 76% of the time over the last 12 months.
based on 668 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- SkyWest AirlinesOn-time82%Medianon timep9030 minCancel1.3%Flights160
- United AirlinesOn-time74%Medianon timep9070 minCancel0.4%Flights508
Why flights run late
Delay causes
- Airline24%
- Weather4%
- Air traffic (NAS)13%
- Late aircraft59%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline25%
- Weather50%
- Air traffic (NAS)25%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 4 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 → GTF
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 83% on time.
- Middays83% on time · p90 30 min · 1,096 flights
- Evenings72% on time · p90 75 min · 1,037 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 81% on time.
- Sundays81% on time · p90 40 min · 314 flights
- Tuesdays80% on time · p90 45 min · 312 flights
- Wednesdays79% on time · p90 50 min · 312 flights
- Mondays79% on time · p90 60 min · 312 flights
- Thursdays77% on time · p90 50 min · 311 flights
- Fridays76% on time · p90 50 min · 314 flights
- Saturdays75% on time · p90 45 min · 314 flights
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