Find out what a flight from Ontario to Chicago O'Hare might cost

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

Select your dates to check current offers.

Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Flying from or to Ontario and Chicago? Here are your airport options

Knowing your full list of nearby airports can make flight planning easier, especially when routes vary.

• Airports in Ontario: Only Ontario is available for departures.
• Airports in Chicago: Arrivals into Chicago are possible from 3 airports - Midway, O'Hare, Rockford.

For families or those traveling with assistance, smaller airports can be easier to navigate. Cities served by multiple airports often allow for more flexible travel planning.

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.