$69 Cheap Porter Airlines flights Chicago (MDW) to Montreal (YUL)

Scoring cheap one-way Porter Airlines flights from MDW to YUL from $69 on Expedia is easy — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $191 for your next exciting adventure.**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.

Look for Porter Airlines flights from MDW to YUL about one month before you want to leave. The cheapest time to reserve an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of itinerary or ticket type, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Travelers who book on a Sunday can save 17% on average 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.

Sort your results by "Morning" and "Early Morning" to see the earliest flights from MDW to YUL. Taking off 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.

An excellent in-flight experience and the chance to rack up points through VIPorter are the start of the reasons to depart from MDW to YUL with Porter Airlines. Plus, when you sign up to our One Key™ program, you can receive OneKeyCash™* on top of Porter Airlines's loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.