The United℠ Explorer Card and the AAdvantage® Aviator® Red World Elite Mastercard® are both excellent choices for frequent flyers, offering valuable airline-specific perks. The United Explorer Card edges out as the better option due to its broader rewards on dining and hotel stays, alongside United purchases. It provides a generous sign-up bonus and valuable travel perks like United Club passes.
However, the AA Aviator Red World Elite is still worth considering for its easy-to-earn sign-up bonus and American Airlines benefits, especially if you frequently fly with them.
MoneyGeek's card comparison breaks down the card details, rewards and perks to help you decide which is right for you.