Originally Posted by
PV_Premier
i'm not sure if it is possible to make changes to a companion ticket after departure, but if so, you could consider a speculative return or open jaw one way which could later be changed to maximize the value of the certificate.
ie, book XXX-YYY-ZZZ as the one way you need, then ZZZ-YYY-XXX far in the future. change that to something different or a different date later. this isn't bulletproof as whatever you change to needs to be a legal routing on the companion fare.
and again i have no idea if this would even work because i don't know if you are allowed to make changes like this on a companion fare after you've started the ticket.
I always try to maximize my companion certs so I get a one-way AND a round-trip out of each one....for example, I wanted to use a companion cert on a DFW-PDX one-way in June (2017), but since I didn't want to waste it on a one-way, I went ahead and booked a PDX-PVR round-trip for February (2018).