Originally Posted by
ftweb
Ideally I would book something like SFO-FRA-BCN-FRA-SFO, with the SFO-FRA and FRA-SFO parts on UA metal, and the FRA-BCN-FRA on LH or JK or something. I can buy such a ticket from united.com. Unfortunately I'm subject to the fly america act for this ticket, and none of the *A flights into BCN appear to be available as UA code shares.
I may be mistaken, but it's my understanding that the Fly America Act merely requires that you enter and depart the U.S. on a U.S.-flagged carrier. So, if you're on UA for the SFO-FRA-SFO legs, does it really matter if your on LH to/from BCN on that same PNR?