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Route Reliability

Pittsburgh → Las Vegas

PIT–LAS · 1,910 miles · Pittsburgh International Airport to Harry Reid International Airport

88
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
0 min
Average arrival delay
0.4%
Cancelled
796
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Southwest Airlines83%675 flights
  2. 2.Spirit Airlines81%121 flights

What the data says

Morning flights do better here.

PIT–LAS flights departing between 6–9 AM arrived on time 96% of the time, versus 70% between 6–9 PM.

Monday is the weak spot.

PIT–LAS flights arrived on time 88% of the time on Tuesdays. On Mondays: 79%.

Not much between Southwest Airlines and Spirit Airlines.

On this route they all land within 81% to 83% on time. Pick on schedule and price.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(122 flights)
  • Tue88%(102 flights)
  • Wed87%(94 flights)
  • Thu79%(113 flights)
  • Fri80%(119 flights)
  • Sat88%(109 flights)
  • Sun80%(132 flights)
On-time by departure window
  • 3–6 AM92%(92 flights)
  • 6–9 AM96%(244 flights)
  • 9 AM–12 PM—(8 flights)
  • 12–3 PM82%(61 flights)
  • 3–6 PM73%(244 flights)
  • 6–9 PM70%(139 flights)
  • 9 PM–12 AM—(3 flights)
On-time trend by month
86%
May

Jun 77% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%78
July 202580%75
August 202584%77
September 202583%88
October 202582%90
November 202585%60
December 202578%46
January 202683%42
February 202689%44
March 202679%62
April 202687%63
May 202686%66

Keep nerding

Based on 796 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.