Flight Check

Best Airline: LAS to SLC

Las Vegas to Salt Lake City — airline reliability comparison

Delta Air Lines is the most reliable airline on the LAS to SLC route with a 85% on-time rate, compared to Spirit Airlines at 74%. Based on 6,237 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 Lines85%
Frontier Airlines80%
Southwest Airlines78%
Spirit Airlines74%

LAS to SLC Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest85%0.6%76m6,237
Frontier AirlinesF980%1.4%67m1,753
Southwest AirlinesWN78%0.4%52m5,680
Spirit AirlinesNKWorst74%1.3%71m1,364

Route Overview

81%
Overall On-Time
63m
Avg Delay
0.6%
Cancel Rate
15,047
Total Flights
LAS to SLC Route DetailsReturn: SLC to LAS
LAS AirportSLC Airport

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