Author: Sharad Ranabhat

With more than 200 aircraft in service and over 100 on order, Air Canada is reshaping its fleet for the next decade.

The busiest international route in Porter’s international portfolio is the high-frequency shuttle between New York LaGuardia (LGA) and  Toronto Pearson (YYZ).

WestJet (WS), Canada’s second-largest airline, maintains a strong international presence with a strong emphasis on transborder travel to the United States and key leisure destinations in Mexico and the Caribbean.

Aeromexico’s top 30 domestic routes in June 2025 are a good indicator of its existing network strategy.

Hawaiian Airlines (HA) busiest domestic routes are, without surprise, short-haul inter-island flights that connect Hawaii’s major population centers.

With Mexico City’s Benito Juárez Airport as its primary hub, Aeromexico serves multiple busiest routes across the Americas and Europe.

As Frontier grows and changes, this list will certainly be different. For the moment, though, these 30 routes speak volumes about where the airline is headed — and how it’s getting there.

Air Canada (AC) maintains an extensive international network, commanding significant market share in the Canadian and transatlantic travel.

Zurich Airport sets a standard for quality in 2025 among airports handling 20 to 30 million passengers, with others close behind.

These mid-to-large hubs have distinguished themselves in 2025 by investing in passenger experience, sustainability, and seamless connectivity.