Cheap Air Canada flights San Francisco (SFO) to Montreal (YUL)

Finding cheap one-way Air Canada flights from SFO to YUL on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from $391 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.

To get cheap flights from SFO to YUL with Air Canada, start your search about one month before your planned departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**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.

Leaving SFO at 8:30AM UTC-8, the earliest Air Canada flight to YUL arrives at 4:58PM UTC-5. Traveling early means you're less likely to experience cancellations.* Prefer to travel later? The last Air Canada flight from SFO to YUL departs at 8:30AM UTC-8 and touches down at 4:58PM UTC-5.*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.

Jetting off from SFO to YUL with Air Canada comes with a host of benefits, including top-tier customer service and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to use on select future travel purchases. That's on top of the Air Canada Aeroplan points you can earn with Air Canada.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.