Choosing between Canada's "Big Two" in 2026 depends on your destination and desired level of service. Air Canada, as the flag carrier and a Star Alliance member, is generally "better" for international reach and premium service. They offer a true three-cabin experience on long-haul flights, including the "Signature Class" lie-flat pods. WestJet, while traditionally a low-cost carrier, has moved upmarket but remains centered on its Western Canadian hubs (Calgary and Vancouver). WestJet is often praised for a friendlier "guest-focused" culture and recently integrated Starlink Wi-Fi on many 737 MAX aircraft, which is a significant win for connectivity. However, Air Canada’s loyalty program (Aeroplan) is more versatile for global redemptions. If you are flying a domestic "hop," WestJet's "UltraBasic" fares might be cheaper, but Air Canada offers better flight frequency and connectivity for business travelers. In 2026, both airlines have faced scrutiny over reliability, making the "best" choice often the one that offers the only direct flight for your specific route.