US airlines have the world's four largest fleets. Here's how the Boeing and Airbus planes operated by Delta, United, American ...

Southwest operates nearly 800 aircraft in an all-Boeing 737 fleet. Despite offering some longer routes and a few perks for business travelers, the airline ... In comparison to its industry peers ...

marking an initial step as the low-fare airline prepares for a slew of changes to its fleet and customer experience. Over the rest of the year, all aircraft in Southwest’s fleet will be ...

DALLAS—Southwest Airlines will begin retrofitting the interiors of its Boeing 737 fleet comprised of more than 800 aircraft on May 1. In January, Southwest confirmed plans to enhance its fleet ...

These platforms conveniently let customers compare flights, but they also pit airlines against one another. Since Southwest’s fare bundled everything and some fares don’t bundle anything ...

American Airlines and Delta were down several percentage points Tuesday morning. Southwest is the largest domestic carrier in the country, with a fleet of 803 planes, according to Southwest's website.