The answers to the USA Today crossword puzzle can be found on their website, puzzles.usatoday.com. The site allows you to play the crossword puzzle contained in the print version online. The answers can be found by clicking "Solve" from the drop down menu and choosing "Solve Puzzle."
The USA today website also providers users both the crossword puzzles and answers featured in USA Today from the past month. For answers to crossword puzzles prior to one month ago, the website CrosswordGiant.com provides answers going as far as back as 2003. However, Crossword Giant does not feature the crossword puzzles, only the answers.