Flight Check

Best Airline: SLC to LAS

Salt Lake City to Las Vegas — airline reliability comparison

Delta Air Lines is the most reliable airline on the SLC to LAS route with a 78% on-time rate, compared to Spirit Airlines at 70%. Based on 6,241 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

Delta Air Lines78%
Southwest Airlines76%
Frontier Airlines73%
Spirit Airlines70%

SLC to LAS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest78%0.5%60m6,241
Southwest AirlinesWN76%0.5%54m5,650
Frontier AirlinesF973%1.4%93m1,752
Spirit AirlinesNKWorst70%1.3%78m1,365

Route Overview

76%
Overall On-Time
64m
Avg Delay
0.7%
Cancel Rate
15,021
Total Flights
SLC to LAS Route DetailsReturn: LAS to SLC
SLC AirportLAS Airport

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