Join Date: May 2007
Location: YYZ, but my heart is in Asia
Programs: AC-SE, CX-DM, DL-G, Hyatt-DM, Hilton-DM, Fairmont-Plt, Marriott-S, Accor-Plt, SPG-G, IHG-Plt
Posts: 4,396
You cannot book codeshare flights with AP. But you can book any *A flight. To answer your question, yes, you can book any UA flights, not necessarily those that OZ codeshares.