No, the American Express Singapore Airlines KrisFlyer Credit Card is not currently available for US residents. Try to apply to any other travel card. General travel cards are better in terms of rates and fees. They can offer 0% APR along with no annual and foreign transaction fees.
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All rates and fees, and other terms and conditions of the products mentioned in this article/post are actual as of the last update date but are subject to change. See the current products' Terms & Conditions on the issuing banks' websites.