I asked a question a few weeks ago about DL on an upcoming trip to Spain. I am traveling SNA-ATL-BCN on DL and then on to VLC on SpanAir (Air Europa codeshare).
I used miles to get to BCN and then bought my BCN-VLC ticket on orbitz - so they are 2 separate records.
When I check in at SNA, will I be able to check my bags all the way through? I know that SpanAir and DL interline, but will the agent at the desk be able to take care of everything for me?