Flight Check

Best Airline: LAS to MDW

Las Vegas to Chicago — airline reliability comparison

Southwest Airlines is the most reliable airline on the LAS to MDW route with a 78% on-time rate, compared to Frontier Airlines at 73%. Based on 9,570 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 Airlines78%
Frontier Airlines73%

LAS to MDW Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Southwest AirlinesWNBest78%0.8%49m9,570
Frontier AirlinesF9Worst73%1.9%56m753

Route Overview

77%
Overall On-Time
51m
Avg Delay
0.9%
Cancel Rate
10,326
Total Flights
LAS to MDW Route DetailsReturn: MDW to LAS
LAS AirportMDW Airport

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