Historical on-time performance
Dallas to Las Vegas
1,067 miData through Dec 2025Source: US DOT · BTS
Flights on DAL–LAS arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights
based on 2,937 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9035 minCancel1.5%Flights2,937
Why flights run late
Delay causes
- Airline28%
- Weather4%
- Air traffic (NAS)17%
- Late aircraft50%
- 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 DAL → 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 — 90% on time.
- Mornings90% on time · p90 10 min · 2,695 flights
- Middays78% on time · p90 35 min · 1,946 flights
- Afternoons71% on time · p90 50 min · 1,385 flights
- Evenings65% on time · p90 55 min · 1,488 flights
- Overnights60% on time · p90 70 min · 1,204 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 80% on time.
- Saturdays80% on time · p90 30 min · 898 flights
- Tuesdays80% on time · p90 30 min · 1,256 flights
- Wednesdays78% on time · p90 35 min · 1,256 flights
- Mondays76% on time · p90 35 min · 1,325 flights
- Sundays74% on time · p90 45 min · 1,337 flights
- Fridays73% on time · p90 45 min · 1,327 flights
- Thursdays71% on time · p90 45 min · 1,319 flights
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