Join Date: Dec 2011
Location: BOS, BWI, DCA, IAD
Programs: American, Delta, JetBlue, United
Posts: 2,396
I have found the following possibility, which may be of interest. The lowest fare is $666.90 RT. Nov 8-10.
Lv ORD 12:10 PM DL 2455; arr MSP 1:40 PM.
Lv MSP 3:25 PM DL 258; arr AMS 6:35 AM Nov 9.
Lv AMS 11:35 AM DL 9622 [operated by KLM]; arr IST 3:50 PM.
That would give you about 5 hours in Amsterdam.
Return Nov 10 via AMS or CGD; prices vary somewhat depending on the return flight.