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

More From Newsweek Vault: Compare ... seats across the fleet to offer extended legroom, in line with that offered by industry peers on narrowbody aircraft," the airline said. Southwest also ...

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 ...

Also, the airline next month will add itself to Skyscanner, another tool for travelers to compare prices and book flights. Southwest joined ... is also modernizing its fleet of Boeing 737 jets ...

United and Southwest ... compare. United Airlines United Airlines is the only carrier with over 1,000 planes.Gary Hershorn/Getty Images With 1,023 planes, United Airlines has the largest fleet ...

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 ...

United and Southwest prefer Boeing planes ... to show how the Big Four airlines' fleets compare. With 1,023 planes, United Airlines has the largest fleet in the world, according to data from ...