Flight Check

Best Airline: MIA to LAS

Miami to Las Vegas — airline reliability comparison

Spirit Airlines is the most reliable airline on the MIA to LAS route with a 74% on-time rate, compared to Frontier Airlines at 64%. Based on 1,086 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 Airlines74%
American Airlines70%
Frontier Airlines64%

MIA to LAS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Spirit AirlinesNKBest74%1.6%67m1,086
American AirlinesAA70%0.7%71m4,210
Frontier AirlinesF9Worst64%0.9%69m360

Route Overview

70%
Overall On-Time
72m
Avg Delay
0.9%
Cancel Rate
5,682
Total Flights
MIA to LAS Route DetailsReturn: LAS to MIA
MIA AirportLAS Airport

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