Direct flights from Ontario to Chicago ONT → ORD

United Airlines flies nonstop from Ontario (ONT) to Chicago (ORD). The flight takes about 4h and covers 1,696 miles (2,730 km). Arrivals run on time 78.9% at ONT and 70.7% at ORD — BTS data for the last three months, counting arrivals within 15 minutes of schedule.

🔔 Watch ONT → ORD

We'll run this search daily and email you the cheapest direct fares we find.

Free · checked daily · one-click unsubscribe

United Airlines UA

More nonstops from Ontario

ONT → OAK Oakland ONT → SJC San Jose ONT → SMF Sacramento ONT → BNA Nashville ONT → BWI Baltimore ONT → DAL Dallas

Frequently asked questions

Is there a direct flight from Ontario to Chicago?

Yes, United Airlines operates nonstop flights from Ontario (ONT) to Chicago (ORD).

Which airlines fly direct from Ontario to Chicago?

United Airlines operates nonstop flights from Ontario to Chicago.

How long is the flight from Ontario to Chicago?

The nonstop flight from Ontario to Chicago takes ~4h (approximately 2730 km).

What is the on-time performance for flights from Ontario to Chicago?

Arrivals run on time 78.9% at ONT and 70.7% at ORD — BTS data for the last three months, counting arrivals within 15 minutes of schedule.

Explore More

ONT All direct flights from Ontario ORD All direct flights from Chicago ORD → ONT Return: Chicago to Ontario

Scout — our search agent — hunts nonstop fares from Ontario every night and pings you when one's worth booking.

Watch it work →