Originally Posted by
Mwenenzi
If its the AA flight number (codeshare) you cannot as AA does not sell PE.
OWE may get you free seat selection, but not 100% sure.
Although that used to be the case, it is no longer so (though there may not be much availability). I flew MEL-SYD-DFW-TPA-DFW-SYD-MEL last month on a wholly AA-coded, AA-issued PE ticket.
As a OWE, the OP should have access to better/free seat selection.