Historical on-time performance
Colorado Springs to Las Vegas
604 miData through May 2026Source: US DOT · BTS
Flights on COS–LAS arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 860 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time80%Medianon timep9035 minCancel0.0%Flights860
Why flights run late
Delay causes
- Airline28%
- Weather5%
- Air traffic (NAS)18%
- Late aircraft49%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline49%
- Weather47%
- Air traffic (NAS)4%
- 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 COS → 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 — 93% on time.
- Mornings93% on time · p90 5 min · 934 flights
- Middays79% on time · p90 40 min · 661 flights
- Afternoons74% on time · p90 45 min · 383 flights
- Evenings71% on time · p90 55 min · 646 flights
- Overnights66% on time · p90 60 min · 181 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 85% on time.
- Saturdays85% on time · p90 30 min · 282 flights
- Tuesdays85% on time · p90 20 min · 368 flights
- Wednesdays83% on time · p90 25 min · 369 flights
- Sundays81% on time · p90 30 min · 411 flights
- Thursdays80% on time · p90 40 min · 456 flights
- Mondays79% on time · p90 45 min · 455 flights
- Fridays73% on time · p90 55 min · 464 flights
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