By Jeffrey Quiggle Airline passengers working their way through the traveling process are often looking to make the sometimes difficult experience as enjoyable as possible. But United Airlines (UAL) – Get Free Report has one policy that is an inconvenience for many flyers — and there is a simple reason why. Related: Southwest passengers experienced a particularly terrifying situation mid-flight First, on a larger scale, it’s important to note that United is a founding member of Star Alliance, a global aviation partnership. The alliance allows passengers to fly on multiple airlines on partner f…