United

Looks like I can use my Chase points for about $400 off airfare. There seems to be quite a few airline options.

Looks like the farthest east United will get us is Stockholm. But obviously that's north. Munich is more central. Possibly Zurich plus a nice train ride through the Alps? Is that where the Alps are? I think so.

They also fly into most major western European cities - Berlin, Rome, Paris, Madrid, London, etc.

I found a Lufthansa flight for $920 with our Chicago to Prague, Budapest to Chicago itinerary. There were some long layovers, but I'm not sure we're going to avoid those.

Hmmm, Chicago to Zurich still wants us to connect in Copenhagen. And is $900. So much for that plan. Lame.

We can get to Madrid for $850, Copenhagen for $750, London for $900, Rome for $1,000, Munich for $900....not sure any of these are helping.

Looks like it's then $200 to fly to Prague and back from Budapest (to Copenhagen). So we're at $950, where we would be anyway.