About the Calgary → San Francisco route
This route connects Calgary (YYC, Calgary Intl) to San Francisco (SFO). Our AI continuously compares fares from many airlines and agencies for this route, in Canadian dollars (taxes included), and surfaces the biggest price drops.
When to book?
For most international routes, the best prices are usually found 6 to 10 weeks before departure, avoiding peak periods (school breaks, year-end holidays). Fares move fast: a deal spotted today can vanish within hours. Set an alert above to be notified the moment a good price returns on Calgary → San Francisco.
Prices are estimates in Canadian dollars and are confirmed before payment on the booking site.