San Francisco, CA SFO to Toronto, ON YTO flight with American Airlines

Alaska Airlines, headquartered in SeaTac, Washington, is a major U.S. airline and the fifth-largest in North America by scheduled passengers carried as of 2024. Along with its regional partners, Horizon Air and SkyWest Airlines, Alaska Airlines operates a route network primarily connecting cities along the West Coast of the United States, including Alaska and Hawaii, to over 100 destinations in the contiguous U.S., the Bahamas, Belize, Canada, Costa Rica, Guatemala, and Mexico. The airline is a member of the Oneworld alliance, offering passengers access to a broad global network. Alaska Airlines is known for its customer service and loyalty program, Mileage Plan, and offers First Class, Premium Class, and Main Cabin seating options. The airline's primary hub is Seattle-Tacoma International Airport. In 2024, its parent company, Alaska Air Group, acquired Hawaiian Airlines.

Porter Airlines is a Canadian airline headquartered at Billy Bishop Toronto City Airport, known for its focus on convenience and customer service. Established in 2006, it has grown to be the third-largest airline in Canada. Porter operates scheduled flights across North America, utilizing a fleet of De Havilland Canada DHC-8-400 turboprops and Embraer 195-E2 jet aircraft. A key feature of Porter Airlines is its "Flying Refined" brand, emphasizing a premium travel experience with amenities like complimentary beer, wine, and snacks, as well as free Wi-Fi on its E195-E2 jets. They also offer a unique two-by-two seating configuration, ensuring no middle seats on their flights. Porter's main hubs include Toronto–Billy Bishop, Toronto–Pearson, and Ottawa Macdonald-Cartier airports.