$79 Cheap American Airlines flights Chicago (ORD) to Montreal (YUL)

Landing cheap one-way American Airlines flights from ORD to YUL from $79 on Expedia is easy — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly round-trip fares from $164 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

American Airlines flights to Montreal are generally more affordable in the off-peak months of January and February. Whether you need a return or one-way ticket, you could score a better deal then.

Start your search for American Airlines flights from ORD to YUL about one month before you want to leave. The most affordable time to reserve an international flight is usually 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your ticket type or itinerary, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Travelers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct journey from ORD to YUL with American Airlines or any other carriers, check the “Nonstop” filter when browsing for tickets.

Sort your results by “Morning” and “Early Morning” to see the earliest departures from ORD to YUL. Leaving early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

American Airlines flights from O’Hare Intl. Airport (ORD) to Montreal come in to Pierre Elliott Trudeau Intl. Airport (YUL). This is the main entry point to this city.

Typically, you can cancel or modify your flight, although additional charges may apply if your booking was made more than 24 hours ago. Need to keep your options open? Make use of Expedia’s “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to adjust your plans. To update your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for further information.