Similarly to Southwest, passengers on United have a pretty loose dress code. United Airlines' contract of carriage specifies that passengers must be "properly clothed." American Airlines' code of ...

The budget carrier is scrutinizing passengers with an even more critical eye. Here's what fashion choices no longer fly.

Spirit Airlines’ new passenger dress code asks fliers to cover up, wear shoes and conceal offensive attire or tattoos.

Some of the updates give examples for already-existing rules, but new restrictions on 'lewd' tattoos and body art are a new addition.

Spirit isn’t the only airline with a dress code. Fort Worth-based American Airlines states in its Conditions of Carriage that passengers have the responsibility to "dress appropriately ...

American Airlines' code of carriage does not specify what is not allowed, but it does say that passengers have to "dress appropriately; bare feet or offensive clothing aren’t allowed." ...