Flight Check

Best Airline: FSD to LAS

Sioux Falls to Las Vegas — airline reliability comparison

Allegiant Air is the most reliable airline on the FSD to LAS route with a 77% on-time rate. Based on 592 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

Allegiant Air77%

FSD to LAS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Allegiant AirG4Best77%0.3%75m592

Route Overview

76%
Overall On-Time
77m
Avg Delay
0.3%
Cancel Rate
592
Total Flights
FSD to LAS Route DetailsReturn: LAS to FSD
FSD AirportLAS Airport

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