Do you travel with flexibility? If so, you must be considering your flexible vacation itinerary. If so, don't fret and make a reservation with United Airlines. The airline fully appreciates the worries of its customers, which is why it provides a straightforward United Airlines cancellation policy that enables everyone to cancel their reservation with no additional work or expenses. The policy is fairly simple to grasp. The airline continues to have its corporate offices in Chicago, Illinois's Willis Tower. Being the main airline in the country, it has a vast local and international route network. United Airlines has an 843-strong fleet and serves 42 locations with its flights. The Star Alliance was established by United Airlines and has grown to become the world's largest airline alliance.