Historical on-time performance
Denver to Las Vegas
Flights on DEN–LAS arrive on time 75% of the time over the last 12 months.
based on 7,066 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-time78%Medianon timep9045 minCancel0.4%Flights2,458
- Frontier AirlinesOn-time75%Medianon timep9050 minCancel0.9%Flights1,483
- Southwest AirlinesOn-time72%Medianon timep9050 minCancel0.8%Flights3,125
Why flights run late
Delay causes
- Airline27%
- Weather2%
- Air traffic (NAS)21%
- Late aircraft49%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline43%
- Weather28%
- Air traffic (NAS)28%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 46 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 → LAS
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 — 87% on time.
- Mornings87% on time · p90 15 min · 6,516 flights
- Middays76% on time · p90 45 min · 5,383 flights
- Afternoons67% on time · p90 65 min · 3,870 flights
- Overnights65% on time · p90 70 min · 3,780 flights
- Evenings64% on time · p90 75 min · 4,423 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 80% on time.
- Wednesdays80% on time · p90 35 min · 3,263 flights
- Tuesdays79% on time · p90 40 min · 3,180 flights
- Saturdays77% on time · p90 40 min · 2,862 flights
- Mondays73% on time · p90 55 min · 3,626 flights
- Sundays72% on time · p90 55 min · 3,720 flights
- Thursdays69% on time · p90 60 min · 3,638 flights
- Fridays68% on time · p90 65 min · 3,685 flights
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