Join Date: Apr 2009
Location: Bye Delta
Programs: AA EXP, UA Silver, HH Diamond, IHG Plat, Hyatt Plat, Marriott Titanium, Nat'l EE, Avis PC, Hertz PC
Posts: 16,632
Likely a glitch, which DL seems to be famous for. If you search for a one-way vs. multi-city and end up with the exact same flights, they should also price identically.