Summer 3013 will be DL and AF business for 4, MSP-IST and back
Summer 2012 was LH F to Berlin
Summer 2011 was LH F to Norway

All of these were at the lowest price level.

Plus a bunch of domestic, some at saver, some at medium.


The biggest hurdle is crossing the pond, second hurdle domestic saver, intra-Europe is (almost always a short putt).

If you're a risk-taker, you could consider breaking into two groups, flying 'same way, same day', where you might be together on some flights and not on others to begin, then change flights as allowed to align (some programs are lenient- United- and some will get lenient after a major schedule change).