Flights from Frederick to Chicago

Cheapest flights from Frederick

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 8 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$120 Roundtrip, found 6 days ago

$120

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $120 found 6 days ago

Sun, Sep 7 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$122 Roundtrip, found 6 days ago

$122

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Sun, Sep 7 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $122 found 6 days ago

Thu, Aug 21 - Mon, Aug 25

BWI

Baltimore Washington Intl. Thurgood Marshall

MDW

Midway Intl.

$127 Roundtrip, found 1 day ago

$127

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 21 from Baltimore Washington Intl. Thurgood Marshall to Midway Intl., returning Mon, Aug 25, priced at $127 found 1 day ago

Thu, Aug 21 - Fri, Aug 22

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$127 Roundtrip, found 1 day ago

$127

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 21 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Fri, Aug 22, priced at $127 found 1 day ago

Mon, Aug 4 - Mon, Aug 11

BWI

Baltimore Washington Intl. Thurgood Marshall

MDW

Midway Intl.

$137 Roundtrip, found 1 day ago

$137

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Baltimore Washington Intl. Thurgood Marshall to Midway Intl., returning Mon, Aug 11, priced at $137 found 1 day ago

Mon, Aug 4 - Wed, Aug 6

BWI

Baltimore Washington Intl. Thurgood Marshall

MDW

Midway Intl.

$143 Roundtrip, found 1 day ago

$143

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Baltimore Washington Intl. Thurgood Marshall to Midway Intl., returning Wed, Aug 6, priced at $143 found 1 day ago

Mon, Sep 8 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$145 Roundtrip, found 6 days ago

$145

Roundtrip

found 6 days ago

Select American Airlines flight, departing Mon, Sep 8 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $145 found 6 days ago

Mon, Sep 8 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$150 Roundtrip, found 6 days ago

$150

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Mon, Sep 8 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $150 found 6 days ago

Mon, Sep 8 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$156 Roundtrip, found 6 days ago

$156

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $156 found 6 days ago

Mon, Sep 8 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$157 Roundtrip, found 6 days ago

$157

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Mon, Sep 8 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $157 found 6 days ago

Sat, Aug 16 - Fri, Aug 22

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$159 Roundtrip, found 1 day ago

$159

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 16 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Fri, Aug 22, priced at $159 found 1 day ago

Tue, Aug 19 - Mon, Aug 25

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$162 Roundtrip, found 1 day ago

$162

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Aug 19 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Mon, Aug 25, priced at $162 found 1 day ago

Mon, Sep 8 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$162 Roundtrip, found 6 days ago

$162

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $162 found 6 days ago

Mon, Sep 8 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$164 Roundtrip, found 6 days ago

$164

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Mon, Sep 8 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $164 found 6 days ago

Sun, Sep 7 - Tue, Sep 9

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$165 Roundtrip, found 6 days ago

$165

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Sun, Sep 7 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Tue, Sep 9, priced at $165 found 6 days ago

Tue, Aug 19 - Mon, Aug 25

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$168 Roundtrip, found 1 day ago

$168

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 19 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Mon, Aug 25, priced at $168 found 1 day ago

Mon, Sep 8 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$177 Roundtrip, found 6 days ago

$177

Roundtrip

found 6 days ago

Select American Airlines flight, departing Mon, Sep 8 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Thu, Sep 11, priced at $177 found 6 days ago

Sat, Aug 23 - Sat, Aug 30

IAD

Washington Dulles Intl.

MDW

Midway Intl.

$190 Roundtrip, found 1 day ago

$190

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 23 from Washington Dulles Intl. to Midway Intl., returning Sat, Aug 30, priced at $190 found 1 day ago

Wed, Sep 10 - Wed, Sep 10

BWI

Baltimore Washington Intl. Thurgood Marshall

ORD

O'Hare Intl.

$191 Roundtrip, found 6 days ago

$191

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Sep 10 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Wed, Sep 10, priced at $191 found 6 days ago

Sat, Jun 14 - Tue, Jun 24

IAD

Washington Dulles Intl.

ORD

O'Hare Intl.

$210 Roundtrip, found 1 hour ago

$210

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Sat, Jun 14 from Washington Dulles Intl. to O'Hare Intl., returning Tue, Jun 24, priced at $210 found 1 hour ago