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Flights From Major Airports
From Chicago
Current:
Chicago to Ontario
Chicago ✈ Ontario
Cheapest airfares from Chicago to Ontario
Search for flight deals to Ontario
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All prices in AUD, prices may fluctuate slightly from the advertised price.
Fly on Mon, Oct 20th 2025
From
$194
Frontier Airlines
F9 3281 (1 Transfer)
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Fly on Tue, Nov 4th 2025
From
$218
United Airlines
UA 2165 (Direct)
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Fly on Thu, May 28th 2026
From
$497
United Airlines
UA 481 (Direct)
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Fly on Thu, Jun 11th 2026
From
$501
United Airlines
UA 481 (1 Transfer)
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Fly on Thu, Dec 25th 2025
From
$556
United Airlines
UA 516 (Direct)
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