How much is a flight from Ontario to Chicago O'Hare?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Ontario and Chicago.

Pick a travel date to see today’s available fares.

Fares change often — checking several times throughout the week can make a big difference. Booking in advance often means access to lower prices for the Ontario - Chicago O'Hare route.

Which airports near Ontario or Chicago offer flights?

In many cases, using a nearby airport can improve your chances of finding direct flights or better rates.

• Airports in Ontario: Only Ontario is currently operating.
• Airports in Chicago: 3 options available in Chicago - Midway, O'Hare, Rockford.

Secondary airports can offer faster travel thanks to shorter lines and quicker boarding times than major ones.

Customize your flight from Ontario to Chicago O'Hare

Jetcost allows you to filter by travel dates, duration, layovers, carriers, and booking providers. You’ll find direct and connecting flights, one-way or round-trip, from the best airlines and travel agencies.

Other popular destinations

Thinking about United States? You might also consider: Las Vegas, Los Angeles, Miami, New York City, Orlando.

You can sort results by price, duration, or departure time to find the best option for you. When available, results always include both low-cost and traditional airlines.