Chicago, United States to Ontario, United States for only $181 USD roundtrip
Cheap flights from Chicago, United States to Ontario, United States for only $181 USD roundtrip with United Airlines.
June 05, 2025
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⚠️ Heads up: Deals typically expire within 2 to 3 days after they are sent. Prices may also increase slightly after 30 minutes, so act quickly!
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Travel Dates
| From Date | To Date |
|---|---|
| August 01, 2025 | August 06, 2025 |
| December 01, 2025 | December 06, 2025 |
| November 01, 2025 | November 06, 2025 |
| October 01, 2025 | October 06, 2025 |
| September 01, 2025 | September 06, 2025 |
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