Cheap Flights from Montreal to San Francisco from $167

Frequently Asked Questions

• What are the cheapest flights from Montreal to San Francisco (YMQ-SFO)?

  Based on Trip.com data, United Airlines offers one-way fares as low as $167 on Cheapest nonstop routes (e.g. YUL to SFO on Wed, Apr 1), while Porter Airlines offers Cheapest nonstop round-trips from $283 departing on Fri, Mar 27 and returning on Wed, Apr 1.

• Which airlines offer direct flights from Montreal to San Francisco?

  At the moment, you can catch a nonstop flight from Montreal to San Francisco with the following airlines, including: Air Canada Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from Montreal (YMQ) to San Francisco (SFO) and what is the distance?

  It takes around 6 hours 32 minutes to fly from Montreal (YMQ) to San Francisco (SFO).

• When is the best time to book flights from Montreal to San Francisco?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Montreal to San Francisco is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Montreal to San Francisco?

  Based on Trip.com data in the past 4 weeks, there is 6 flight per week flying from Montreal to San Francisco. You can check the weekly schedule for popular airlines on this route below: Air Canada: S/M/T/W/T/F/S -- AC761 (18:17)

• How can I find the best deals on flights from Montreal to San Francisco?

  To find best deals on flights from Montreal to San Francisco, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Apr 1, with one-way flights priced at just $167.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Canada.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for San Francisco travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Montreal (YMQ) to San Francisco (SFO) the cheapest?

  The cheapest months to fly from Montreal to San Francisco is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Montreal to San Francisco on?

  After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Montreal to San Francisco on March 26, 2026 with Air Canada, with prices starting at $262.

• Which airports can I fly to for San Francisco from Montreal?

  You can land at any one of the following hubs in San Francisco, with Montreal-Pierre Elliott Trudeau International Airport to San Francisco International Airport (YUL-SFO) is by far the most common option on this route: San Francisco International Airport (SFO).

• Is there any time difference between Montreal and San Francisco?

  The time difference between San Francisco and Montreal is 3h.

• How do I change or cancel my ticket from Montreal to San Francisco?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.