Historical on-time performance
Pittsburgh to Las Vegas
1,910 miData through Dec 2025Source: US DOT · BTS
Flights on PIT–LAS arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 664 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time79%Medianon timep9030 minCancel0.5%Flights664
Why flights run late
Delay causes
- Airline31%
- Weather2%
- Air traffic (NAS)21%
- Late aircraft46%
- 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 PIT → 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 — 88% on time.
- Mornings88% on time · p90 15 min · 1,169 flights
- Overnights76% on time · p90 65 min · 123 flights · limited
- Middays75% on time · p90 35 min · 301 flights
- Evenings71% on time · p90 50 min · 782 flights
- Afternoons71% on time · p90 60 min · 248 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 83% on time.
- Tuesdays83% on time · p90 30 min · 351 flights
- Wednesdays82% on time · p90 30 min · 346 flights
- Sundays81% on time · p90 45 min · 402 flights
- Fridays79% on time · p90 40 min · 389 flights
- Mondays78% on time · p90 35 min · 391 flights
- Thursdays77% on time · p90 35 min · 375 flights
- Saturdays76% on time · p90 45 min · 369 flights
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