American Airlines has one of those crazy low fares again for Los Angeles LAX to Chicago ORD as low as $70.20 round trip. This is a low fare and allows Californians to take advantage of low fares to Europe from Chicago like ORD-Paris for $496 round trip. Delta and United are not on sale.
One way fare is $35.10 for Saturday departures LAX – ORD in October and November. There are also a couple of Tuesday dates.
One way fare ORD – LAX is $73.10 on Saturdays from Sep-Nov with Nov 12 the only remaining $35 date.
American Airlines Los Angeles LAX – ORD Chicago
$70.20 Tue Nov 1 – Sat Nov 12
Loyalty Traveler – AA New York to Paris still $491 and low AA/DL London/Paris Xmas fares (June 13) – This article shows low Chicago fares at $496 to Paris still available today.