Ontario International Airport (ONT) officials said they are pleased to learn United Airlines will begin daily nonstop service between the Inland Empire and Chicago O’Hare International Airport (ORD) in May 2025.
Alan D. Wapner, president of the Ontario International Airport Authority (OIAA) Board of Airport Commissioners said: “We are thrilled that United has chosen to add service from Ontario to its home base in Chicago, which will become our airport’s 27th nonstop destination.
“United’s O’Hare service will enable Ontario passengers to travel nearly anywhere across the globe via one of the world’s busiest airports. Providing more options to reach more destinations is what we’re all about.”
The service between Ontario and Chicago O’Hare will begin May 22 in the westbound direction, and May 23 in the eastbound direction, with a daily departure from ONT at 7 a.m. Pacific Time and a return flight departing ORD at 7:55 p.m. Central Time.
Atif Elkadi, OIAA chief executive officer said: “This welcome news reflects the confidence of our airline partners in our facilities, services and amenities, and the strong demand for air travel through our Southern California gateway.
“We look forward to extending the world class service air travellers have come to expect at Ontario to more airline passengers in 2025.”
The United Airlines announcement comes as ONT welcomed more than 7 million travellers in 2024, 27% more than pre-pandemic 2019 and a 67% increase since 2016 when ONT was transferred to local control from the City of Los Angeles.

