Historical on-time performance
Denver to Great Falls
624 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–GTF arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 655 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-time79%Medianon timep9045 minCancel0.9%Flights323
- United AirlinesOn-time73%Medianon timep9080 minCancel0.3%Flights332
Why flights run late
Delay causes
- Airline22%
- Weather4%
- Air traffic (NAS)13%
- Late aircraft61%
- Security0%
Most delay minutes here are attributed to Late aircraft.
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 (2023-01 .. 2025-12).
Best time of day
Overnights are the most reliable time of day to fly this route — 94% on time.
- Overnights94% on time · p90 5 min · 52 flights · limited
- Middays84% on time · p90 30 min · 1,096 flights
- Evenings71% on time · p90 75 min · 1,041 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 · 314 flights
- Mondays79% on time · p90 60 min · 314 flights
- Fridays78% on time · p90 50 min · 312 flights
- Wednesdays77% on time · p90 50 min · 314 flights
- Saturdays76% on time · p90 45 min · 312 flights
- Thursdays75% on time · p90 40 min · 309 flights
Advertisement
Keep exploring