Historical on-time performance
Atlanta to Las Vegas
Flights on ATL–LAS arrive on time 74% of the time over the last 12 months.
based on 4,757 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.
- Spirit AirlinesOn-time82%Medianon timep9035 minCancel0.6%Flights164
- Southwest AirlinesOn-time77%Medianon timep9035 minCancel0.3%Flights720
- Delta Air LinesOn-time75%Medianon timep9045 minCancel0.8%Flights3,356
- Frontier AirlinesOn-time61%Medianon timep90100 minCancel2.9%Flights517
Why flights run late
Delay causes
- Airline43%
- Weather5%
- Air traffic (NAS)20%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline49%
- Weather49%
- Air traffic (NAS)2%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 45 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 ATL → 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 — 84% on time.
- Mornings84% on time · p90 20 min · 3,917 flights
- Middays79% on time · p90 30 min · 2,746 flights
- Afternoons75% on time · p90 45 min · 1,926 flights
- Evenings68% on time · p90 60 min · 3,156 flights
- Overnights61% on time · p90 70 min · 3,216 flights
Best day of week
Wednesdays are the most reliable day to fly this route — 80% on time.
- Wednesdays80% on time · p90 30 min · 2,027 flights
- Tuesdays78% on time · p90 40 min · 2,025 flights
- Saturdays77% on time · p90 40 min · 2,039 flights
- Mondays72% on time · p90 50 min · 2,218 flights
- Thursdays71% on time · p90 50 min · 2,206 flights
- Fridays70% on time · p90 55 min · 2,236 flights
- Sundays69% on time · p90 55 min · 2,216 flights
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