Select journey type

Enter to select travel class and passengers

Ultra Low Fare Flights from Boston (BOS) to Chicago (ORD) with Spirit

Fly Boston to Chicago and Save Big

*Fares presented below are available at the beginning of each day, but may sell out. Additional baggage fees and fees for other services may apply. Other terms and conditions may apply.

  1. BOS-ORD

    Boston to Chicago

    Departing 09/24/2019

    Fares From
    $49*

    One Way

  2. BOS-ORD

    Boston to Chicago

    Departing 09/25/2019

    Fares From
    $49*

    One Way

  3. BOS-ORD

    Boston to Chicago

    Departing 09/28/2019

    Fares From
    $49*

    One Way

  4. BOS-ORD

    Boston to Chicago

    Departing 10/08/2019

    Fares From
    $49*

    One Way

  5. BOS-ORD

    Boston to Chicago

    Departing 10/09/2019

    Fares From
    $49*

    One Way

  6. BOS-ORD

    Boston to Chicago

    Departing 10/01/2019

    Fares From
    $49*

    One Way

Ultra Low Fare Flights from Boston (BOS) to Chicago (ORD) with Spirit

Weather in Chicago

Wednesday ,broken clouds
68°F 08/21/2019
Thursday ,sky is clear
76°F 08/22/2019
Friday ,scattered clouds
73°F 08/23/2019
Saturday ,sky is clear
75°F 08/24/2019
Sunday ,broken clouds
77°F 08/25/2019
Monday ,very heavy rain
84°F 08/26/2019
Tuesday ,overcast clouds
72°F 08/27/2019
Powered by: OpenWeatherMap.org