A flight attendant for 37 years, she had been through several uniform changes by the time American Airlines introduced new workwear for all its employees in September of that year.

Tattoos take center stage. As of this month, for example, Scandinavian Airlines (SAS) allows flight attendants and other guest-facing staff members to have visible tattoos while in uniform.

Some airlines around the world are making flight attendant uniforms more gender-neutral. Flight attendant uniform trends are often representative of the time when they are worn. United, JetBlue ...

Airlines—long bastions of traditional gender roles and rigidly defined uniforms—are opening up their dress codes as conversations about identity evolve. “Finally I was able to wear the ...