Flight Check

Best Airline: PHL to MDW

Philadelphia to Chicago — airline reliability comparison

Southwest Airlines is the most reliable airline on the PHL to MDW route with a 78% on-time rate, compared to Frontier Airlines at 70%. Based on 5,106 flights tracked.

This route involves weather-prone airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Southwest Airlines78%
Frontier Airlines70%

PHL to MDW Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Southwest AirlinesWNBest78%1.3%66m5,106
Frontier AirlinesF9Worst70%2.9%85m751

Route Overview

77%
Overall On-Time
71m
Avg Delay
1.5%
Cancel Rate
5,891
Total Flights
PHL to MDW Route DetailsReturn: MDW to PHL
PHL AirportMDW Airport

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