ORD-ARN-NOV-DEC Written by Cheap-Airline-Flights on August 26, 2019 More in : Cheap Flights: Chicago to Miami – $53 RT on American March 2, 2020 CHICAGO to AUSTIN TX – Just $97 RT on UNITED February 27, 2020 Cheap Flights: Chicago to LAX – $133 RT February 27, 2020