Originally Posted by
number_6
EI is awfully tight on award inventory and rarely converts unsold seats into awards closer to flight time. You'd have a much better chance on AA metal (out of BOS or DUB on AA for example). Probably best to ticket those tickets on hold if you want a convenient routing.
I don't necessarily agree that EI is tight with award inventory (if you use EF you'll see many T/A flights U=3) but aside from that the advice is spot on for you. IME EI (unlike say BA and AA) doesn't open up additional unsold seats as the travel date approaches