I signed us all up on A3. Flying from MIA it looks I'll earn about 20,000 miles each. But. I can't combine accounts until I hit silver which is 24,000 points but I can probably swing a few US domestic F trips on United (I really dislike them but that's a separate story) before the end of year to get me an addl 4K and then if I understand correctly, I can merge accounts. Thanks for the tips. Oh yah, and I'm excited to visit Denmark. Hopefully my wife's maiden name doesn't screw me on her points but even if so the kids will be nice.