Historical on-time performance
Denver to Spokane
835 miData through May 2026Source: US DOT · BTS
Flights on DEN–GEG arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 1,843 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time89%Medianon timep9015 minCancel0.0%Flights153
- United AirlinesbestOn-time74%Medianon timep9045 minCancel0.4%Flights833
- Southwest AirlinesOn-time69%Medianon timep9050 minCancel0.2%Flights857
Why flights run late
Delay causes
- Airline35%
- Weather1%
- Air traffic (NAS)12%
- Late aircraft52%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline60%
- Weather20%
- Air traffic (NAS)20%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 5 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 → GEG
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 54% to 85% on time.
- Mornings85% on time · p90 20 min · 1,114 flights
- Middays83% on time · p90 25 min · 1,911 flights
- Evenings70% on time · p90 55 min · 1,186 flights
- Afternoons67% on time · p90 50 min · 693 flights
- Overnights54% on time · p90 70 min · 983 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 76% on time.
- Wednesdays76% on time · p90 40 min · 806 flights
- Tuesdays76% on time · p90 35 min · 815 flights
- Saturdays75% on time · p90 40 min · 844 flights
- Mondays74% on time · p90 40 min · 825 flights
- Sundays73% on time · p90 45 min · 899 flights
- Thursdays72% on time · p90 50 min · 862 flights
- Fridays71% on time · p90 50 min · 838 flights
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