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I am 20, and just opened an airlines credit card in order to save a lot of money on plane tickets. My credit score is currently 728, but I know that does not mean much because of the relatively short credit history I have. For the past year I have been using a single credit card to make purchases and I always pay off the entire balance before the due date. Recently, I saw a great offer to save money on plane tickets by opening an airlines credit card. The annual fee is $99, but the savings is far greater than the annual fee. I'd like to pay off the price of the tickets, and the annual fee as soon as I get my first statement, and then cancel the credit card. I know I am not going to use it again, because I rarely fly so I can't justify spending $99 a year. How will this affect my credit score?
From research I've done online, it sounds like there is minimal impact of closing a card if I do not owe anything on any cards. Is this true? I will definitely have a $0 balance on my other card when I close the new airlines card.
FURTHER EXPLANATION: My question does not match the "duplicate" question, because I am not looking for how my credit may be impacted by keeping the card open, nor am I talking about closing a card that has been open for a long period of time. The card will be a month old, or slightly older, when I close it.