The American Airlines AAdvantage® MileUp® Card and the JetBlue Card are both no-annual-fee options for travelers who are indifferent between American Airlines and JetBlue. The JetBlue Card is the better choice for those who value dining rewards and international travel, with its higher dining rewards rate and no foreign transaction fees. It offers 3X points on JetBlue purchases and 2X on dining and groceries.
However, the AA MileUp Card should be considered for its strong grocery rewards and lower spending requirement for the sign-up bonus. These features make it appealing to those who prioritize grocery spending and are loyal to American Airlines.