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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 Sat, Jul 19th 2025
From
$274
Frontier Airlines
F9 2209 (1 Transfer)
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Fly on Tue, Aug 5th 2025
From
$322
Southwest Airlines
WN 2022 (1 Transfer)
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Fly on Sat, Dec 20th 2025
From
$439
United Airlines
UA 1801 (1 Transfer)
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