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

Home Premium Fare Deals About

United Airlines

UAUnited Airlines

One Way•Economy

Ontario International Airport

Ontario, United States

O'Hare International Airport

Chicago, United States

$153 USD

-53%$72 USD

Verified about 8 hours ago

December 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$309 1$140 2$105 3$105 4$105 5$105 6$172 7$105 8$105 9$105 10$161 11$105 12$105 13$139 14$105 15$140 16$105 17$205 18$262 19$213 20$172 21$145 22$263 23$245 24$95 25$105 26$172 27$259 28$139 29$194 30$105 31$105 1$105 2$378 3$336

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Thursday, December 3rd, 2026

Outbound Flights

·

→

·

→

·

→