Flight Check

Best Airline: PHX to ORD

Phoenix to Chicago — airline reliability comparison

United Airlines is the most reliable airline on the PHX to ORD route with a 84% on-time rate, compared to Spirit Airlines at 68%. Based on 6,935 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 Airlines82%
Southwest Airlines74%
Frontier Airlines69%
Spirit Airlines68%

PHX to ORD Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest84%1.2%71m6,935
American AirlinesAA82%1.1%73m10,393
Southwest AirlinesWN74%0.7%56m2,435
Frontier AirlinesF969%3.0%94m692
Spirit AirlinesNKWorst68%0.4%60m213

Route Overview

81%
Overall On-Time
71m
Avg Delay
1.1%
Cancel Rate
20,716
Total Flights
PHX to ORD Route DetailsReturn: ORD to PHX
PHX AirportORD Airport

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