What is the most popular airline in the US?

The most popular airline in the United States is Southwest Airlines. It is followed closely by other major airlines such as American Airlines, Delta Air Lines, and United Airlines. Southwest Airlines has been the largest domestic carrier in the US since 2003, with over 700 aircraft and more than 4,000 flights per day during peak travel season.

The popularity of an airline can be determined by various factors such as passenger traffic, fleet size, and revenue. Southwest Airlines has a loyal customer base due to its low-cost fares, frequent flights, and generous baggage allowance. Additionally, Southwest Airlines has a reputation for excellent customer service and on-time performance.

Other popular airlines in the US include American Airlines, Delta Air Lines, and United Airlines. These airlines have a large fleet and offer flights to destinations around the world. American Airlines is the largest airline in the world in terms of revenue, fleet size, and passenger traffic, while Delta Air Lines is the second-largest airline in the US by passenger traffic and fleet size. United Airlines is the third-largest airline in the US and operates a vast network of domestic and international flights.