Cheap flights from Ontario (ONT) to Illinois (IL)

Flight FAQs

From Ontario to Illinois

Are flight prices decreasing from Ontario to Illinois due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and Illinois for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Ontario to Illinois for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to Illinois for under $200. The cheapest flight booked recently is on Multiple Airlines for just $136, but on average you can expect to pay $159.

Are there nonstop flights from Ontario to Illinois for under $100 on Cheapflights?

There are no nonstop flights from Ontario to Illinois, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Ontario to Illinois for under $200?

There are currently 20+ open flights from Ontario to Illinois within the next 7 days for less than $200.

What days are nonstop flights available from Ontario to Illinois?

Nonstop flights can be found on the following days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

What are the most popular airlines that fly from Ontario to Illinois?

When booking a flight from Ontario to Illinois, you may want to consider flying on Major Airline, American Airlines or Alaska Airlines as they are the most popular for this route.

What are the most popular routes from Ontario to Illinois?

Most travelers choose Ontario - Chicago O'Hare Intl, Ontario - Chicago Midway or Ontario - Moline Quad-City when deciding on the best route from Ontario to Illinois.

What are the cheapest Flights from Ontario to Illinois?

Looking for the cheapest flight from Ontario to Illinois? While on average our users pay $237, our data indicates the cheapest price to be $129. The most popular route (Ontario - Chicago O'Hare Intl), is priced around $98.

How long does is the flight from Ontario to Illinois?

Airlines like Delta fly from Ontario to Illinois in about 7h 54m. The time it takes to get you to your destination can typically vary by up to .

What are the cheapest airlines to fly from Ontario to Illinois one-way?

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $123. British Airways flights start at $136 while deals on JetBlue start at $231 one-way.