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    Book with confidence - We have plenty of flexible travel options to choose from in case you need to change your plans.

    Low-cost flights to Chicago Rockford with Frontier Airlines

    COVID-19 updates. - For information on refunds and cancellations. To change your booking on My bravofly.com. Read up on the latest travel restrictions.

    Best Frontier Airlines flights to Chicago Rockford

    Denver - Chicago O'Hare

    Mon 3/22/21 Tue 3/23/21 Wed 3/24/21 Thu 3/25/21 Fri 3/26/21 Sat 3/27/21 Sun 3/28/21
    Mon 3/22/21
    from 47 €
    6d ago
    		Tue 3/23/21
    from 47 €
    14d ago
    		Wed 3/24/21
    from 49 €
    14d ago
    		Thu 3/25/21
    from 49 €
    5d ago
    		Fri 3/26/21
    from 39 €
    9d ago
    		Sat 3/27/21
    from 47 €
    7d ago
    		Sun 3/28/21
    from 122 €
    10d ago

    Atlanta - Chicago O'Hare

    Mon 3/22/21 Tue 3/23/21 Wed 3/24/21 Thu 3/25/21 Fri 3/26/21 Sat 3/27/21 Sun 3/28/21
    Mon 3/22/21
    from 273 €
    13d ago
    		Tue 3/23/21
    from 159 €
    13d ago
    		Wed 3/24/21
    from 186 €
    7d ago
    		Thu 3/25/21
    from 209 €
    13d ago
    		Fri 3/26/21
    from 245 €
    11d ago
    		Sat 3/27/21
    from 270 €
    10d ago
    		Sun 3/28/21
    -

    Orlando - Chicago O'Hare

    Mon 3/22/21 Tue 3/23/21 Wed 3/24/21 Thu 3/25/21 Fri 3/26/21 Sat 3/27/21 Sun 3/28/21
    Mon 3/22/21
    from 114 €
    4d ago
    		Tue 3/23/21
    from 104 €
    6d ago
    		Wed 3/24/21
    from 92 €
    6d ago
    		Thu 3/25/21
    from 118 €
    6d ago
    		Fri 3/26/21
    from 188 €
    6d ago
    		Sat 3/27/21
    from 221 €
    8d ago
    		Sun 3/28/21
    from 223 €
    11d ago

    Dulles - Chicago O'Hare

    Mon 3/22/21 Tue 3/23/21 Wed 3/24/21 Thu 3/25/21 Fri 3/26/21 Sat 3/27/21 Sun 3/28/21
    Mon 3/22/21
    -
    		 Tue 3/23/21
    -
    		 Wed 3/24/21
    -
    		 Thu 3/25/21
    -
    		 Fri 3/26/21
    -
    		 Sat 3/27/21
    -
    		 Sun 3/28/21
    -

    Las Vegas - Chicago O'Hare

    Mon 3/22/21 Tue 3/23/21 Wed 3/24/21 Thu 3/25/21 Fri 3/26/21 Sat 3/27/21 Sun 3/28/21
    Mon 3/22/21
    from 101 €
    6d ago
    		Tue 3/23/21
    from 98 €
    9d ago
    		Wed 3/24/21
    from 76 €
    3d ago
    		Thu 3/25/21
    from 102 €
    2d ago
    		Fri 3/26/21
    from 98 €
    3d ago
    		Sat 3/27/21
    from 80 €
    12d ago
    		Sun 3/28/21
    from 184 €
    10d ago

    Miami - Chicago O'Hare

    Mon 3/22/21 Tue 3/23/21 Wed 3/24/21 Thu 3/25/21 Fri 3/26/21 Sat 3/27/21 Sun 3/28/21
    Mon 3/22/21
    from 178 €
    2d ago
    		Tue 3/23/21
    from 101 €
    7d ago
    		Wed 3/24/21
    from 102 €
    2d ago
    		Thu 3/25/21
    from 103 €
    2d ago
    		Fri 3/26/21
    from 171 €
    3d ago
    		Sat 3/27/21
    from 178 €
    2d ago
    		Sun 3/28/21
    from 273 €
    2d ago

    Prices refer to lowest available return flight, and are per person for the dates shown. The flights are subject to seat availability as well as variations in the price and tariffs.