Historical on-time performance
Cleveland to Denver
1,201 miData through Dec 2025Source: US DOT · BTS
Flights on CLE–DEN arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 1,574 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time85%Medianon timep9025 minCancel0.2%Flights981
- Southwest AirlinesOn-time79%Medianon timep9035 minCancel0.2%Flights562
- Frontier AirlinesOn-time48%Median15 minp90105 minCancel0.0%Flights31
Why flights run late
Delay causes
- Airline19%
- Weather3%
- Air traffic (NAS)55%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly CLE → DEN
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 90% on time.
- Mornings90% on time · p90 10 min · 1,881 flights
- Middays88% on time · p90 15 min · 1,352 flights
- Afternoons78% on time · p90 40 min · 1,423 flights
- Evenings62% on time · p90 70 min · 553 flights
- Overnights55% on time · p90 100 min · 313 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 84% on time.
- Tuesdays84% on time · p90 25 min · 801 flights
- Wednesdays83% on time · p90 30 min · 766 flights
- Mondays83% on time · p90 30 min · 834 flights
- Sundays82% on time · p90 30 min · 826 flights
- Fridays81% on time · p90 35 min · 828 flights
- Thursdays80% on time · p90 35 min · 836 flights
- Saturdays77% on time · p90 35 min · 631 flights
Advertisement
Keep exploring