A local day hike and a remote, multi-day route call for different things from a hiking app. Your choice depends on the route, map needs, and whether you want discovery, navigation, or activity tracking. A
Delta, JetBlue, Alaska, Southwest, United, American, Frontier, Allegiant, Spirit, and Breeze make a useful starting shortlist for U.S. flyers, but the right choice depends on the trip. You may care most about comfort, price, safety,