What is the best way to get a flight from Fortaleza to Brazilia? I'm a US citizen.

Directly in fortaleza airport. There are many flights a day from fortaleza to brasilia.

Thanks, but I meant about how to get the ticket? Just go to the airport? Do they take US credit cards?

Yes, sure. All International Credit Cards are accepted.

THERE ARE MANY DIRECT FLIGHTS. TRY TO FIND OU IN DECOLAR.COM