Hi everyone - not sure if this is the best place, so feel free to move (mods). I'm looking at going somewhere in Europe (probably BRU) for a few days in late March/early April with my wife. Want to use UA miles, and ideally would fly LH C DEN-FRA (and then connect). I'm based in DEN. Here's my question; using the UA search tool it almost never comes up with the LH DEN-FRA flight in C. Is this just something wonky about the UA engine, or is a 747 from Denver really that booked up (I doubt it given the time of year). What's the best way to really check LH C availability (using UA miles)? Thanks for the (noob) help!