Chicago is a hotbed of low fares this week. American Airlines and Oneworld partners have low fares in the upper $400s from Chicago to 6 cities in France: Paris, Nantes, Bordeaux, Toulouse, Marseilles and Lyon. Nice is the one major international airport not in this sale.
Departure dates are January 11 to March 31 with a few dates in mid-December. Paris is on sale with all 3 alliances. SkyTeam and Star Alliance are not matching low Oneworld alliance fares to the other five cities at the time of this post.
Links below are for Google Flights searches filtered for Oneworld Alliance. Check other alliances to see if they have matched. These fares were found 9:30am Pacific time zone, Sun Sep 11.
Paris $472 – $487 Dec 10-20; Jan 11-March 31 (all 3 alliances have Paris on sale).
Bordeaux $476-$499 Dec 14, 15, 18; Jan 11 – March 31
Lyon $482-$507 Dec 14, 16, 18-20; Jan 11 – March 31
Marseilles $478-$505 Dec 13-15, 18-20; Jan 11-March 31
Nantes $475-$495 Jan 14 – March 31
Toulouse $477-$503 Dec 14-19; Jan 11-March 31
American Airlines ticket for Iberia Airlines flights
Chicago ORD- Madrid MAD – Bordeaux BOD – Madrid MAD – Chicago ORD
$486.76 round trip Sat March 18 – Sun March 26
