Join Date: Aug 2014
Location: London | Sydney
Programs: LH HON, QF CL, SQ TPPS, AF Plat, VS Gold, VA Plat, EK Gold, HH Diamond, WoH Globalist, Marriott Plat
Posts: 1,528
Immigration issues aside...
SWISS at LHR will definitely interlude your bags all the way through. They do it for me on separate tickets all the time, often to non-*A carriers who they have interline agreements with.