Flight Check

Best Airline: SJC to LAS

San Jose to Las Vegas — airline reliability comparison

Spirit Airlines is the most reliable airline on the SJC to LAS route with a 82% on-time rate, compared to Frontier Airlines at 74%. Based on 2,117 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 Airlines82%
Southwest Airlines82%
SkyWest Airlines78%
Frontier Airlines74%

SJC to LAS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Spirit AirlinesNKBest82%0.5%74m2,117
Southwest AirlinesWN82%1.0%55m12,356
SkyWest AirlinesOO78%0.0%81m257
Frontier AirlinesF9Worst74%1.2%74m459

Route Overview

81%
Overall On-Time
58m
Avg Delay
1%
Cancel Rate
15,232
Total Flights
SJC to LAS Route DetailsReturn: LAS to SJC
SJC AirportLAS Airport

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