Swiss Style is a graphic design style that emerged from Russia, Germany, and the Netherlands in the 1920s. It was developed further by Swiss designers in the 1950s. It is also sometimes referred to as International Typographic Style.
Talking about the new American Airlines logo
Massimo Vignelli American Airlines logo
The only typeface you need according to Massimo Vignelli: Bodoni, Helvetica, Times, Century, Futura.
Typographic Poster Design by Anthony Neil Dart with quotes by Massimo Vignelli