Flights from Chicago to Princeton

Cheapest flights from Chicago

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.

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$147 Roundtrip, found 3 days ago

$147

Roundtrip

found 3 days ago

Select United flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $147 found 3 days ago

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$147 Roundtrip, found 3 days ago

$147

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $147 found 3 days ago

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$150 Roundtrip, found 3 days ago

$150

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $150 found 3 days ago

Mon, Aug 11 - Thu, Aug 14

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$152 Roundtrip, found 1 day ago

$152

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Mon, Aug 11 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Thu, Aug 14, priced at $152 found 1 day ago

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$157 Roundtrip, found 3 days ago

$157

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $157 found 3 days ago

Mon, Aug 11 - Thu, Aug 14

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$160 Roundtrip, found 1 day ago

$160

Roundtrip

found 1 day ago

Select United flight, departing Mon, Aug 11 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Thu, Aug 14, priced at $160 found 1 day ago

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$165 Roundtrip, found 3 days ago

$165

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $165 found 3 days ago

Tue, Aug 12 - Wed, Aug 13

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$167 Roundtrip, found 1 day ago

$167

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, Aug 12 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Wed, Aug 13, priced at $167 found 1 day ago

Tue, Nov 4 - Wed, Nov 12

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$167 Roundtrip, found 1 day ago

$167

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Nov 4 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Wed, Nov 12, priced at $167 found 1 day ago

Fri, Aug 8 - Wed, Aug 13

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$167 Roundtrip, found 3 days ago

$167

Roundtrip

found 3 days ago

Select United flight, departing Fri, Aug 8 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Wed, Aug 13, priced at $167 found 3 days ago

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$171 Roundtrip, found 3 days ago

$171

Roundtrip

found 3 days ago

Select United flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $171 found 3 days ago

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$172 Roundtrip, found 3 days ago

$172

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $172 found 3 days ago

Mon, Sep 15 - Wed, Sep 17

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$176 Roundtrip, found 3 days ago

$176

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Mon, Sep 15 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Wed, Sep 17, priced at $176 found 3 days ago

Wed, Nov 5 - Sun, Nov 9

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$177 Roundtrip, found 1 day ago

$177

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Nov 5 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Sun, Nov 9, priced at $177 found 1 day ago

Mon, Aug 11 - Thu, Aug 14

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$179 Roundtrip, found 1 day ago

$179

Roundtrip

found 1 day ago

Select United flight, departing Mon, Aug 11 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Thu, Aug 14, priced at $179 found 1 day ago

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$182 Roundtrip, found 3 days ago

$182

Roundtrip

found 3 days ago

Select United flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $182 found 3 days ago

Fri, Aug 8 - Wed, Aug 13

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$183 Roundtrip, found 3 days ago

$183

Roundtrip

found 3 days ago

Select American Airlines flight, departing Fri, Aug 8 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Wed, Aug 13, priced at $183 found 3 days ago

Sat, Aug 9 - Wed, Aug 13

MDW

Midway Intl.

EWR

Newark Liberty Intl. Airport

$187 Roundtrip, found 1 day ago

$187

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Aug 9 from Midway Intl. to Newark Liberty Intl. Airport, returning Wed, Aug 13, priced at $187 found 1 day ago

Sat, Sep 13 - Tue, Sep 16

ORD

O'Hare Intl.

EWR

Newark Liberty Intl. Airport

$267 Roundtrip, found 3 days ago

$267

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Sep 13 from O'Hare Intl. to Newark Liberty Intl. Airport, returning Tue, Sep 16, priced at $267 found 3 days ago

Fri, Sep 12 - Mon, Sep 15

ORD

O'Hare Intl.

TTN

Mercer

$284 Roundtrip, found 3 days ago

$284

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Sep 12 from O'Hare Intl. to Mercer, returning Mon, Sep 15, priced at $284 found 3 days ago