Find United Airlines(UA) flights from San Francisco to Calgary

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

It takes about 2 hours 40 minutes to fly from San Francisco to Calgary.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Francisco to Calgary 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.

Based on Trip.com data in the past 4 weeks, there is 45 flight per week flying from San Francisco to Calgary. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL6939 (06:08)

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

After crunching the numbers on our September flight calendar, it's currently cheapest to fly from San Francisco to Calgary on September 26, 2026 with WestJet, with prices starting at US$65.

You can land at any one of the following hubs in Calgary: Calgary International Airport (YYC). Flying from San Francisco International Airport to Calgary International Airport (SFO-YYC) is by far the most common option on this route.

The time difference between Calgary and San Francisco is 2h.

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.