Has anyone recently purchased a ticket using the OW online tool from ARN using AY as the ticketing carrier. If I use BA as the first segment from ARN-LHR it gives me BA as the ticketing carrier and that I must call them . If I use AY on the first segment it still shows the same www.wftc2---- site but looks like it will allow me to purchase it online. I presume that AY is the ticketing carrier.

I purchased 2 tickets back in April on the OW site with AA as I use the codeshare and then connected to AA at LHR . This time I want a two month stopover in LHR and may change my complete itenerary later . Just want to get one at the sale price before it expires . I presume that if I fly the first international segment ( ARN-LHR ) I can do this for the $125 change fee and not subject to any increase in base price ?

Any feedback would be appreciated

anc305