Flight Check

Best Airline: RSW to ORD

Fort Myers to Chicago — airline reliability comparison

United Airlines is the most reliable airline on the RSW to ORD route with a 84% on-time rate, compared to Frontier Airlines at 75%. Based on 5,297 flights tracked.

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

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

United Airlines84%
American Airlines76%
Southwest Airlines75%
Spirit Airlines75%
Frontier Airlines75%

RSW to ORD Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest84%1.2%74m5,297
American AirlinesAA76%1.4%93m3,182
Southwest AirlinesWN75%1.5%62m318
Spirit AirlinesNK75%2.9%108m1,399
Frontier AirlinesF9Worst75%1.3%88m72

Route Overview

80%
Overall On-Time
82m
Avg Delay
1.5%
Cancel Rate
10,348
Total Flights
RSW to ORD Route DetailsReturn: ORD to RSW
RSW AirportORD Airport

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