A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 102,617
There are international DL codeshares, but OP is an experienced traveler and presumably would be aware of this and aware also that the bag would be checked with the operating carrier for the first segment.