Originally Posted by paperwastage

if you go via google.com/flights, pick a specific origin+destination

change airline filter to DL

then change destination back to "Europe"

same map comes up (and specific to DL, not just Skyteam). unfortunately, it considers codeshares/sold-by-DL as DL (not just operated by DL metal)
should still be ok for OP right? (as long as link goes to DL.com to book)