Cheap flights from Calgary to San Francisco Bay Area from C$ 159

In general, October is the cheapest month to fly from Calgary to San Francisco Bay Area. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 272. If you aren’t able to travel during the month of October, then book flights to San Francisco Bay Area from Calgary during September instead. Flights to San Francisco Bay Area in September, while not as cheap as those in October, still average around C$ 276.

The cheapest day to depart on your flight to San Francisco Bay Area is on a Friday when prices can be found for as low as C$ 468. This is often the case because there is less demand to fly during this day of the week. Flights from Calgary to San Francisco Bay Area on a Sunday will generally be more expensive and average around C$ 1,079. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to San Francisco Bay Area is in the morning. Flights from Calgary to San Francisco Bay Area during this time can be as low as C$ 523. In the evening is when there is more demand to fly to San Francisco Bay Area, so prices are often more expensive at around C$ 1,075 per ticket.

Fly from Calgary to San Francisco for the best Calgary - San Francisco Bay Area flight prices

You are more likely to see cheaper flights to San Francisco Bay Area from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco Bay Area for around C$ 324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco Bay Area from Calgary for as low as C$ 238 on momondo.

There are 4 cabin classes available to choose from on Calgary to San Francisco Bay Area flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

WestJet, Air Canada, and APG Airlines are the most popular carriers operating from Calgary to San Francisco Bay Area

WestJet, Air Canada and United Airlines are the top three most popular airlines that fly to San Francisco Bay Area from Calgary according to our data. WestJet is the first choice among our users, with 69% of people opting to fly with this airline when travelling to San Francisco Bay Area. Keep in mind that there are 5 different airlines that fly to San Francisco Bay Area on a routine basis, so you have a few additional options to choose from.

As of February 2026, 4 flights take off from Calgary and land in San Francisco Bay Area each day. The most common flight departure time for this route is 3:00p.m., with 72% of daily flights taking off in the afternoon.

The number of flights available between Calgary and San Francisco Bay Area is 28 per week as of February 2026. The most frequent departure day is Thu, with 36% of weekly flights leaving on this day.