The focus was once on complete commonality across fleets. Now, more airlines seem willing to add cost and complexity to squeeze in more business class seats. Business class remains where most full ...

DALLAS — Armed with dollops of caviar and handfuls of Bang & Olufsen headphones, U.S. airlines are duking it out for international business-class dominance.

Business class flights are a good investment if you're willing to splurge. Here's how 3 airlines compared.