Historical on-time performance
Las Vegas to Pittsburgh
1,910 miData through Dec 2025Source: US DOT · BTS
Flights on LAS–PIT 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)
Cancelled0.1%of scheduled flights
based on 673 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 minCancel0.1%Flights673
Why flights run late
Delay causes
- Airline40%
- Weather0%
- Air traffic (NAS)9%
- Late aircraft51%
- 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 LAS → PIT
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 64% to 84% on time.
- Mornings84% on time · p90 20 min · 751 flights
- Overnights80% on time · p90 40 min · 287 flights
- Middays71% on time · p90 45 min · 707 flights
- Evenings69% on time · p90 55 min · 440 flights
- Afternoons64% on time · p90 60 min · 432 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 84% on time.
- Saturdays84% on time · p90 30 min · 372 flights
- Wednesdays80% on time · p90 30 min · 339 flights
- Tuesdays79% on time · p90 35 min · 340 flights
- Sundays72% on time · p90 45 min · 406 flights
- Fridays71% on time · p90 55 min · 386 flights
- Thursdays71% on time · p90 45 min · 380 flights
- Mondays66% on time · p90 45 min · 394 flights
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