"Different than" and "different from" both appear to be accepted in American English, with "different from" having an edge for more formal writing. [1] [2] [1]

"Different than" and "different from" both appear to be accepted in American English, with "different from" having an edge for more formal writing. [1] [2] [1] http://www.dictionary.com/e/different-from-or-different-than/ http://www.dictionary.com/e/different-from-or-different-than... [2] https://en.oxforddictionaries.com/usage/different-from-than-or-to https://en.oxforddictionaries.com/usage/different-from-than-...