Historical on-time performance
Dallas to Las Vegas
1,067 miData through May 2026Source: US DOT · BTS
Flights on DAL–LAS arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 2,881 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time75%Medianon timep9040 minCancel1.2%Flights2,881
Why flights run late
Delay causes
- Airline27%
- Weather5%
- Air traffic (NAS)18%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline33%
- Weather56%
- Air traffic (NAS)11%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 36 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 DAL → 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 — 90% on time.
- Mornings90% on time · p90 10 min · 2,701 flights
- Middays78% on time · p90 30 min · 2,029 flights
- Afternoons70% on time · p90 50 min · 1,445 flights
- Evenings65% on time · p90 55 min · 1,516 flights
- Overnights59% on time · p90 70 min · 1,147 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 80% on time.
- Wednesdays80% on time · p90 35 min · 1,249 flights
- Tuesdays79% on time · p90 30 min · 1,252 flights
- Saturdays78% on time · p90 35 min · 920 flights
- Mondays76% on time · p90 40 min · 1,344 flights
- Fridays74% on time · p90 40 min · 1,362 flights
- Sundays74% on time · p90 45 min · 1,357 flights
- Thursdays72% on time · p90 45 min · 1,354 flights
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