Our flight from (San Francisco International Airport) with Sun Country SFO Terminal was nice and straightforward. As soon as we arrived, the check-in process was swift and easy, and the helpful staff made sure everything went without a hitch. Because the security lines were well-managed, we had plenty of time to relax before our flight. The terminal at SFO was modern, clean, and spacious, with great dining options, duty-free shopping, and comfortable seating.