Flight Check

Best Airline: LAS to PIT

Las Vegas to Pittsburgh — airline reliability comparison

Spirit Airlines is the most reliable airline on the LAS to PIT route with a 80% on-time rate, compared to Southwest Airlines at 71%. Based on 939 flights tracked.

This route involves high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Spirit Airlines80%
Southwest Airlines71%

LAS to PIT Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Spirit AirlinesNKBest80%0.6%44m939
Southwest AirlinesWNWorst71%0.4%52m2,033

Route Overview

75%
Overall On-Time
51m
Avg Delay
0.4%
Cancel Rate
2,973
Total Flights
LAS to PIT Route DetailsReturn: PIT to LAS
LAS AirportPIT Airport

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Data last updated October 2026. Source: Bureau of Transportation Statistics.