Historical on-time performance
Riverton WY to Denver
296 miData through May 2026Source: US DOT · BTS
Flights on RIW–DEN arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 728 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time82%Medianon timep9050 minCancel0.4%Flights728
Why flights run late
Delay causes
- Airline54%
- Weather11%
- Air traffic (NAS)9%
- Late aircraft27%
- Security0%
Most delay minutes here are attributed to Airline.
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 3 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 RIW → DEN
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 · 1,095 flights
- Afternoons81% on time · p90 60 min · 688 flights
- Middays69% on time · p90 145 min · 143 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 86% on time.
- Wednesdays86% on time · p90 25 min · 272 flights
- Tuesdays85% on time · p90 40 min · 260 flights
- Mondays84% on time · p90 25 min · 269 flights
- Sundays84% on time · p90 30 min · 270 flights
- Fridays82% on time · p90 35 min · 261 flights
- Thursdays82% on time · p90 40 min · 302 flights
- Saturdays82% on time · p90 55 min · 293 flights
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