The Grand canyon airport is located in Tusayan just outside the south entrance to the park, and the 45/50min flight over the National park to the North rim and back is a truly magnificent experience. Taking a stroll along the South rim and taking in the views and having the opportunity to witness a sunset/rise is also very special. As you appear to have the time available, do not miss this chance to see this natural wonder of the world, which can only truly be found within the National park itself.