ORD to ONT from $72 in economy – flightdeals.net

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United Airlines

UAUnited Airlines

One Way•Economy

O'Hare International Airport

Chicago, United States

Ontario International Airport

Ontario, United States

$149 USD

-52%$72 USD

Verified about 3 hours ago

September 2026

Mon

Tue

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Sun

31$95 1$95 2$95 3$105 4$105 5$72 6$130 7$329 8$166 9$95 10$72 11$95 12$72 13$139 14$207 15$95 16$105 17$105 18$105 19$95 20$139 21$140 22$105 23$105 24$105 25$105 26$105 27$139 28$95 29$105 30$105 1$105 2$95 3$95 4$139

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Monday, September 28th, 2026

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