Cheap flights from Calgary to San Francisco International

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Compare Calgary to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

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Flight deals from Calgary to San Francisco International

Looking for a cheap last-minute deal or the best round-trip flight from Calgary Airport to San Francisco International Airport? If you want to travel next month, round-trip fares start from $185. Find the lowest prices on one-way and round-trip tickets right here.

San Francisco.$185 per passenger.Departing Wed, Oct 21, returning Thu, Oct 22.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Wed, Oct 21, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Thu, Oct 22, arriving in Calgary.Price includes taxes and charges.From $185, select.

San Francisco.$185 per passenger.Departing Sun, Nov 22, returning Fri, Nov 27.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Sun, Nov 22, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Fri, Nov 27, arriving in Calgary.Price includes taxes and charges.From $185, select.

San Francisco.$188 per passenger.Departing Wed, Sep 30, returning Sat, Oct 3.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Wed, Sep 30, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Sat, Oct 3, arriving in Calgary.Price includes taxes and charges.From $188, select.

San Francisco.$189 per passenger.Departing Fri, Dec 11, returning Sun, Dec 13.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Fri, Dec 11, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Sun, Dec 13, arriving in Calgary.Price includes taxes and charges.From $189, select.

San Francisco.$190 per passenger.Departing Sun, Oct 25, returning Thu, Dec 3.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Sun, Oct 25, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Thu, Dec 3, arriving in Calgary.Price includes taxes and charges.From $190, select.

San Francisco.$190 per passenger.Departing Thu, Oct 29, returning Sun, Nov 1.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Thu, Oct 29, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Sun, Nov 1, arriving in Calgary.Price includes taxes and charges.From $190, select.

San Francisco.$191 per passenger.Departing Mon, Nov 30, returning Thu, Dec 3.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Mon, Nov 30, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Thu, Dec 3, arriving in Calgary.Price includes taxes and charges.From $191, select.

San Francisco.$222 per passenger.Departing Mon, Nov 23, returning Mon, Feb 22.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Mon, Nov 23, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Mon, Feb 22, arriving in Calgary.Price includes taxes and charges.From $222, select.

San Francisco.$238 per passenger.Departing Mon, Dec 21, returning Mon, Jan 4.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Mon, Dec 21, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Mon, Jan 4, arriving in Calgary.Price includes taxes and charges.From $238, select.

San Francisco.$239 per passenger.Departing Tue, Jun 29, returning Sat, Jul 10.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Tue, Jun 29, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Sat, Jul 10, arriving in Calgary.Price includes taxes and charges.From $239, select.

San Francisco.$253 per passenger.Departing Wed, Sep 23, returning Sun, Sep 27.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Wed, Sep 23, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Sun, Sep 27, arriving in Calgary.Price includes taxes and charges.From $253, select.

San Francisco.$253 per passenger.Departing Mon, Jan 25, returning Mon, Feb 8.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Mon, Jan 25, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Mon, Feb 8, arriving in Calgary.Price includes taxes and charges.From $253, select.

San Francisco.$253 per passenger.Departing Fri, Jan 8, returning Fri, Jan 22.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Fri, Jan 8, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Fri, Jan 22, arriving in Calgary.Price includes taxes and charges.From $253, select.

San Francisco.$253 per passenger.Departing Fri, Feb 19, returning Fri, Feb 26.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Fri, Feb 19, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Fri, Feb 26, arriving in Calgary.Price includes taxes and charges.From $253, select.

San Francisco.$254 per passenger.Departing Fri, May 14, returning Tue, May 25.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Fri, May 14, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Tue, May 25, arriving in Calgary.Price includes taxes and charges.From $254, select.

San Francisco.$255 per passenger.Departing Fri, May 28, returning Wed, Jun 2.Round-trip flight with WestJet.Outbound direct flight with WestJet departing from Calgary on Fri, May 28, arriving in San Francisco International.Inbound direct flight with WestJet departing from San Francisco International on Wed, Jun 2, arriving in Calgary.Price includes taxes and charges.From $255, select.

Find the cheapest month to fly from Calgary to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Calgary to San Francisco International flights are currently cheapest in October.

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Direct flights from Calgary to San Francisco International

Calgary to San Francisco International: Alternative routes

Compare routes from Calgary to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Calgary to San Francisco: Flight information

The things to know before you go.

Cheapest flight found	$185
Cheapest month to fly	October
Average flight time	3 hrs, 1 min
Most popular airline	Qantas
Average flights per week	152

Finding cheap flights from Calgary to San Francisco International: Frequently asked questions

How much are round-trip flights from Calgary to San Francisco International?

The best price we found for a round-trip flight from Calgary to San Francisco International is $185. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Calgary to San Francisco International?

3 hours and 1 minute is the average flight time from Calgary to San Francisco International.

Which airlines fly direct from Calgary to San Francisco International?

Qantas, Aeromexico and WestJet fly direct from Calgary to San Francisco International.

How many flights are there a week from Calgary to San Francisco International?

There are 152 flights per week flying from Calgary to San Francisco International, as of September 2026.

When is the cheapest time to fly from Calgary to San Francisco International?

The cheapest month to fly from Calgary to San Francisco International is usually October.

Which upcoming date is cheapest to fly from Calgary Airport to San Francisco International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Calgary Airport to San Francisco International Airport on Wednesday, October 21, 2026.

Can I get a direct flight from Calgary Airport to San Francisco International Airport?

Yes – the average flight time is 3 hours and 1 minute.

How can I find the best flight deal to San Francisco International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to San Francisco?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Calgary Airport to San Francisco International?

Currently, WestJet offers the cheapest flight tickets to San Francisco International.

Flying from Calgary Airport (YYC) to San Francisco International Airport (SFO): what you need to know

Around 3 hours is how long you can expect to be in the air on a direct flight from Calgary Airport to San Francisco International Airport.
San Francisco is one hour behind Calgary and is in the UTC-8 timezone.
You can choose from 18 weekly Calgary Airport to San Francisco International Airport flights. The 07:30 departure with United Airlines is the earliest you can take. WestJet operates the last service of the day at 19:25.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport with enough time to catch your YYC to SFO flight.
Traveling during a peak month like July? School holidays and other popular seasons can mean longer queues at security. Play things extra safe and arrive up to four hours before international flights and two hours before a domestic departure.
WestJet is your ticket to exploring San Francisco (and perhaps some other exciting corners of the United States!). Check out the direct flights from Calgary Airport to San Francisco International Airport offered by this airline.
The airline with the highest passenger demand on this route is WestJet.
With 78.33% of its services arriving as scheduled, United is the most punctual carrier operating YYC to SFO flights.

How to find the cheapest flights from Calgary Airport (YYC) to San Francisco International Airport (SFO)

At the moment, $117 is the cheapest price we've found for a one-way Calgary Airport to San Francisco International Airport flight. The best price for a return ticket is $185. Bear in mind that fares can change due to availability at the time of booking.
Get cheap tickets from YYC to SFO by booking three months ahead. Based on our research, that's the sweet spot for finding the biggest deals.
The cheapest month for flights from Calgary Airport to San Francisco International Airport is August. Use the 'Whole month' tool to see the lowest airfares if you have flexible travel dates.
Stay on top of deals for cheap flights from YYC to SFO by creating a Price Alert. You'll receive an email or push notification on the app when a lower fare becomes available.
Lock in the ideal flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Calgary Airport to San Francisco International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Calgary Airport (YYC)

YYC is located at 2000 Airport Road Northeast.
76% of flights leaving from Calgary Airport touch down at their destination on time.
Calgary Airport is around 19 kilometers from central Calgary. If you're catching a cab, ride-sharing or driving from the center, it'll take 25 minutes or so to arrive, depending on the traffic.
Expect a trip time of roughly 45 minutes when using public transport.
Get your journey off to a hassle-free start by staying near YYC. Whether you're boarding an early flight from Calgary Airport to San Francisco International Airport or want to avoid feeling rushed, these stays are the answer:

Arriving at San Francisco International Airport (SFO)

If you're coming in on a late Calgary Airport to San Francisco International Airport flight, nothing beats the convenience of being close to the terminal. Collect your bags from the carousel and then be showered and resting shortly after at one of these options near SFO:
Grab a San Francisco International Airport rental car and discover San Francisco and beyond with your own wheels. Dollar, Thrifty and Hertz are leading providers you can book with here.
Lock in the lowest price by booking your vehicle from San Francisco International Airport about one week ahead of your trip.

Getting from San Francisco International Airport (SFO) to central San Francisco

San Francisco International Airport is roughly 21 kilometers from the center of San Francisco. The drive time takes around 25 minutes.
It typically takes 35 minutes if you're traveling on public transport.

When to fly to San Francisco International Airport (SFO)

It's time to pick your dates for your flight from Calgary Airport to San Francisco International Airport. July is the most popular month to visit San Francisco. If you'd like a quieter vibe, go in March.
Lock in your flight from Calgary Airport to San Francisco International Airport for September if you want to visit San Francisco during its warmest month. You can expect temperatures of between 12ºC (54ºF) and 24ºC (75ºF).
If you like traveling in cooler conditions, search for a cheap ticket from YYC to SFO in January. Temperatures average between 5ºC (41ºF) and 16ºC (61ºF) then.

Explore more of the United States

You've seen San Francisco, now it's time to explore other corners of the United States. Travel around 64 kilometers south-east to San Jose to tick off its leading sights. From Winchester Mystery House to The Tech Interactive and Santa Clara Valley, you'll have a full itinerary ahead.
If you're looking to explore another well-known destination in the United States, head for Fresno, about 257 kilometers south-east of San Francisco. Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo are among the biggest draws.