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Chicago ✈ Ontario

Cheapest airfares from Chicago to Ontario

Search for flight deals to Ontario

*All prices in AUD, prices may fluctuate slightly from the advertised price.
Fly on Wed, Oct 22nd 2025
From $166

Frontier Airlines
F9 1483 (1 Transfer)
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Fly on Thu, Sep 11th 2025
From $174

Frontier Airlines
F9 1887 (1 Transfer)
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