Originally Posted by SouthPoleFlyer

Noticed 2 saver F's this morning on .bomb. Called to see if I could bump up that first leg. Agent said not with it being mixed with LH's, that if the LH FRA-ORD was on UA she could but not otherwise. Timing wise I'd really rather stick with the LH flight back, it's earlier.

Typically its better to book such flights as two one-ways. Otherwise they have to cancel everything and you start over and hope the seats you gave up return to inventory.