Our opinions are our own. Do you fly Delta Air Lines with someone at least once a year? If so, then this card should pay for itself. If not, look for a cheaper alternative.

Delta Air Lines alone reported earning nearly $2 billion last year through its partnership with American Express. But strategic flyers can ... for real money to banks that have co-branded credit cards ...

Premium, loyalty, and co-branded credit card revenue have diversified Delta's income streams. Diversifying revenue streams ...

See how we rate credit cards to write unbiased product reviews ... EducationKatherine holds dual degrees in photojournalism and Asian American studies from the University of Texas at Austin ...