Historical on-time performance
Denver to Cleveland
1,201 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–CLE arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 1,604 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.
- United AirlinesOn-time80%Medianon timep9035 minCancel0.2%Flights981
- Frontier AirlinesOn-time79%Medianon timep9030 minCancel1.6%Flights61
- Southwest AirlinesOn-time63%Median5 minp9070 minCancel0.7%Flights562
Why flights run late
Delay causes
- Airline26%
- Weather1%
- Air traffic (NAS)13%
- Late aircraft59%
- 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 → CLE
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 48% to 84% on time.
- Mornings84% on time · p90 25 min · 744 flights
- Middays82% on time · p90 30 min · 2,023 flights
- Afternoons76% on time · p90 40 min · 858 flights
- Evenings64% on time · p90 65 min · 1,842 flights
- Overnights48% on time · p90 75 min · 61 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 78% on time.
- Tuesdays78% on time · p90 35 min · 805 flights
- Wednesdays76% on time · p90 40 min · 767 flights
- Sundays76% on time · p90 40 min · 819 flights
- Thursdays75% on time · p90 40 min · 834 flights
- Mondays74% on time · p90 45 min · 836 flights
- Fridays73% on time · p90 55 min · 828 flights
- Saturdays72% on time · p90 55 min · 639 flights
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