hey st. louis, this one's for you...
WOW Air have a very few dates for round trip travel between St Louis (STL) and Paris France (CDG) for $309, making 1 stop in Iceland. WOW Air is a low-cost air carrier. They do charge extra for carry-on bags so be sure you check their website for baggage and optional service fees.
Departs STL: Sept 4, 29; Oct 22;
Returns: Sept 13, 24; Oct 8, 15, 31; Nov 7; Dec 4
Use dates and plug into Expedia [expedia.com]
or WOW Air [wowair.us]
to purchase. Bundling your hotel on Expedia will save money so consider it.