For the moment, WestJet is the more profitable carrier. But in recent years, Air Canada has closed the gap and, in the first quarter of 2018, we see signs that Air Canada—after years of giving chase—might overtake its long-dominant rival. Emirates appears to be emerging from its malaise, but can it return to its former glory? AirFrance/KLM continues to struggle with its unions.

Lufthansa had its best first quarter in a decade. And IAG, the airline group that includes British Airways, Iberia, Vueling, Aer Lingus and Level, continues to dazzle. However, IAG’s brilliance hasn’t proven alluring enough to capture more than 5% of Norwegian.