Historical on-time performance
Houston to Las Vegas
1,235 miData through Dec 2025Source: US DOT · BTS
Flights on HOU–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)
Cancelled0.9%of scheduled flights
based on 2,093 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 minCancel0.9%Flights2,093
Why flights run late
Delay causes
- Airline30%
- Weather4%
- Air traffic (NAS)18%
- Late aircraft48%
- 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 HOU → LAS
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 91% on time.
- Mornings91% on time · p90 10 min · 2,181 flights
- Middays75% on time · p90 40 min · 1,121 flights
- Afternoons72% on time · p90 50 min · 889 flights
- Overnights70% on time · p90 50 min · 1,132 flights
- Evenings68% on time · p90 50 min · 856 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 85% on time.
- Saturdays85% on time · p90 25 min · 712 flights
- Wednesdays81% on time · p90 30 min · 834 flights
- Tuesdays80% on time · p90 35 min · 834 flights
- Sundays77% on time · p90 35 min · 934 flights
- Mondays77% on time · p90 40 min · 965 flights
- Thursdays76% on time · p90 35 min · 947 flights
- Fridays76% on time · p90 50 min · 953 flights
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