Flight Check

Best Airline: MEM to LAS

Memphis to Las Vegas — airline reliability comparison

Southwest Airlines is the most reliable airline on the MEM to LAS route with a 83% on-time rate, compared to Frontier Airlines at 52%. Based on 584 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

Southwest Airlines83%
Spirit Airlines81%
Allegiant Air58%
Frontier Airlines52%

MEM to LAS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Southwest AirlinesWNBest83%0.4%57m584
Spirit AirlinesNK81%0.7%84m1,082
Allegiant AirG458%2.9%89m175
Frontier AirlinesF9Worst52%2.4%65m37

Route Overview

78%
Overall On-Time
74m
Avg Delay
0.8%
Cancel Rate
2,199
Total Flights
MEM to LAS Route DetailsReturn: LAS to MEM
MEM AirportLAS Airport

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