I am trying to fly from Chicago to Berlin on 9/7 and return from Brussels on 9/19 or 20. I am open to using miles or upgrading with miles but have tried to read the seat counter chart for AA, UA or BA and not having much luck understanding. I think that I can see that tickets are not available on AA but I am not sure. If anyone has the time to check for me it would be appreciated. I really am willing to fly thru any european city on my way to Berlin. I do need 2 tickets. Thanks