Historical on-time performance
San Jose to Las Vegas
Flights on SJC–LAS arrive on time 80% of the time over the last 12 months.
based on 3,733 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-time86%Medianon timep9025 minCancel0.4%Flights258
- SkyWest AirlinesOn-time81%Medianon timep9045 minCancel0.0%Flights214
- Southwest AirlinesOn-time79%Medianon timep9035 minCancel0.6%Flights3,261
Why flights run late
Delay causes
- Airline22%
- Weather3%
- Air traffic (NAS)25%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline42%
- Weather32%
- Air traffic (NAS)26%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 19 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 SJC → 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 — 94% on time.
- Mornings94% on time · p90 5 min · 3,726 flights
- Middays81% on time · p90 35 min · 2,775 flights
- Evenings73% on time · p90 45 min · 2,330 flights
- Overnights73% on time · p90 50 min · 1,708 flights
- Afternoons71% on time · p90 55 min · 2,426 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 87% on time.
- Tuesdays87% on time · p90 20 min · 1,678 flights
- Wednesdays87% on time · p90 20 min · 1,672 flights
- Saturdays87% on time · p90 20 min · 1,488 flights
- Mondays79% on time · p90 35 min · 2,058 flights
- Sundays79% on time · p90 35 min · 1,966 flights
- Fridays74% on time · p90 50 min · 2,072 flights
- Thursdays74% on time · p90 45 min · 2,031 flights
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