How often are MDW to PHX flights on time?

Flights from Chicago (MDW) to Phoenix (PHX) arrive on time 81% of the time across 17,921 flights of official data.

Which airline is most reliable on the MDW to PHX route?

Frontier Airlines has the best on-time record on this route at 84% across 1,198 flights.

Route reliability

Flights from Chicago to Phoenix arrive on time 81% of the time across 17,921 flights. Here’s how each airline really performs.

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On-time rate

17,921 flights

Airline	On-time	Flights
Frontier Airlines	84%	1,198
Southwest Airlines	81%	16,723

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg PHX → MDW.

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Score real MDW–PHX flights on reliability, weather, and connection safety — not just price.

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