💡 Top Performing Card: The community-verified best credit card for Costco Travel purchases is the Citi Shop Your Way Mastercard. Transactions on this card consistently earn 1% cash back by coding in the "Online Shopping, Travel" category.
🔍 Merchant Category Coding (MCC): Costco Travel transactions most frequently code as "Online Shopping, Travel". Ensure your chosen card offers high multiplier rewards for this category to maximize your cash back or travel points.
💳 Maximize Online & App Bookings: For online or mobile app purchases at Costco Travel, checkout options like PayPal, Apple Pay, or purchasing digital gift cards can sometimes trigger alternative bonus categories (like 5% quarterly rotating categories) that outperform standard card multipliers.