Southwest Airlines, known for its low fares and friendly service, has recently expanded beyond US borders. The airline's strategy to venture into international markets has diversified its offerings and attracted a broad spectrum of travelers seeking affordable and reliable air travel. As the aviation industry continues to recover from the impacts of the COVID-19 pandemic, Southwest's international routes have gained significant traction.

This article examines Southwest Airlines' top international routes by seat availability, shedding light on why these destinations are trendy and what they offer travelers. Southwest Airlines has traditionally been a domestic carrier, focusing on providing affordable flights across the United States, However, recognizing the growing demand for international travel, the airline strategically expanded into global markets. This move aimed to cater to the increasing number of Americans seeking international destinations for leisure and business purposes.

Southwest has launched and maintained numerous international routes by leveraging its solid domestic network and customer base. The no-frills low-cost carrier has a curious IATA designation. Southwest Airlines' venture into international markets began in earnest in 2014.

Before this expansion, the airline had built a robust reputation for its domestic service, characterized by low fares, no hidden fees, and a no-frills, customer-friendly approach. This strategy has won Southwest a loyal customer b.