Stockholm - Chicago for only 324 € / 3163 SEK with SAS or 316 € / 3083 SEK with Icelandair

Cheap direct return flights offered by SAS between Stockholm and Chicago for only 324 €, you can fly at this price between October and March with the exception for christmas time. 
Icelandair also offers cheap flights with a quick stopover in Reykjavik from just 316 € ( this fare includes 23 kg baggage allowance)
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Dino's recommended flight:

Stockholm - Chicago - Stockholm 08/11 - 15/11 (7 nights)

momondo.co.uk