Re: Research & book AA "Non-refundable "/"Instant Upgrade"/"YUPP" fare to maximis...
Yes, but... DL has its hubs in different locations to AA, ATL being significantly further east than DFW, MSP further west than ORD, however DL does have SLC way out west (but not quite on the coast)...although PHX is about to come online with oneworld:idea:(Interestingly enough the 750 mile zone is something I have overcome before having navigated a couple of non-refundable first fares on DL for VA status.)