September: Dallas - Chicago (with return) from $77 with Spirit Airlines

August: Los Angeles - Chicago (with return) from $201 with Spirit Airlines

August: Los Angeles - Chicago (with return) from $193 with Spirit Airlines

August: Dallas - Chicago (with return) from $77 with Spirit Airlines

July: Atlanta - Chicago (with return) from $107 with Spirit Airlines

June: Dallas - Chicago (with return) from $160 with Spirit Airlines

June: Las Vegas - Chicago (with return) from $239 with Spirit Airlines

June: Las Vegas - Chicago (with return) from $279 with Spirit Airlines

June: Las Vegas - Chicago (with return) from $169 with Spirit Airlines

May: San Diego - Chicago (with return) from $283 with Spirit Airlines