The airport closest to Sedona is the Sedona Airport, of course, but that is all private and charter. Most people fly into Phoenix Sky Harbor Airport (PHX). Here is info on alternative nearby airports to Sedona AZ like Flagstaff (FLG) or Las Vegas (LAS).
Falls Creek falls-This waterfall is found by backpackers traveling the South Coast Wilderness Trail of Olympic National Park. Views of the Pacific Ocean, cliffs, headlands, islands and seastacks add to this unique wilderness exploration.