Flights from Philadelphia to DeKalb

Cheapest flights from Philadelphia

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.

Sun, Jun 29 - Thu, Jul 10

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$136 Roundtrip, found 4 days ago

$136

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Jun 29 from Philadelphia Intl. to O'Hare Intl., returning Thu, Jul 10, priced at $136 found 4 days ago

Thu, Jul 3 - Thu, Jul 10

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$172 Roundtrip, found 4 days ago

$172

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Jul 3 from Philadelphia Intl. to O'Hare Intl., returning Thu, Jul 10, priced at $172 found 4 days ago

Sat, Jul 5 - Sat, Jul 12

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$185 Roundtrip, found 4 days ago

$185

Roundtrip

found 4 days ago

Select American Airlines flight, departing Sat, Jul 5 from Philadelphia Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $185 found 4 days ago

Tue, Jul 8 - Thu, Jul 10

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$193 Roundtrip, found 4 days ago

$193

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Jul 8 from Philadelphia Intl. to O'Hare Intl., returning Thu, Jul 10, priced at $193 found 4 days ago

Wed, Jul 2 - Thu, Jul 10

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$195 Roundtrip, found 4 days ago

$195

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Jul 2 from Philadelphia Intl. to O'Hare Intl., returning Thu, Jul 10, priced at $195 found 4 days ago

Sat, Jul 5 - Sat, Jul 12

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$197 Roundtrip, found 4 days ago

$197

Roundtrip

found 4 days ago

Select Delta flight, departing Sat, Jul 5 from Philadelphia Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $197 found 4 days ago

Tue, Jun 10 - Tue, Jun 17

TTN

Mercer

ORD

O'Hare Intl.

$204 Roundtrip, found 5 days ago

$204

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jun 10 from Mercer to O'Hare Intl., returning Tue, Jun 17, priced at $204 found 5 days ago

Wed, Jul 2 - Sat, Jul 12

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$205 Roundtrip, found 4 days ago

$205

Roundtrip

found 4 days ago

Select American Airlines flight, departing Wed, Jul 2 from Philadelphia Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $205 found 4 days ago

Wed, Jul 2 - Sat, Jul 12

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$207 Roundtrip, found 4 days ago

$207

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Wed, Jul 2 from Philadelphia Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $207 found 4 days ago

Thu, Jun 26 - Fri, Jun 27

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$208 Roundtrip, found 17 hours ago

$208

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Philadelphia Intl. to O'Hare Intl., returning Fri, Jun 27, priced at $208 found 17 hours ago

Wed, Jul 2 - Sat, Jul 12

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$211 Roundtrip, found 4 days ago

$211

Roundtrip

found 4 days ago

Select United flight, departing Wed, Jul 2 from Philadelphia Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $211 found 4 days ago

Sun, Jun 29 - Mon, Jun 30

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$213 Roundtrip, found 17 hours ago

$213

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Sun, Jun 29 from Philadelphia Intl. to O'Hare Intl., returning Mon, Jun 30, priced at $213 found 17 hours ago

Wed, Jul 2 - Sat, Jul 12

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$215 Roundtrip, found 4 days ago

$215

Roundtrip

found 4 days ago

Select American Airlines flight, departing Wed, Jul 2 from Philadelphia Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $215 found 4 days ago

Thu, Jun 26 - Sun, Jun 29

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$217 Roundtrip, found 16 hours ago

$217

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Philadelphia Intl. to O'Hare Intl., returning Sun, Jun 29, priced at $217 found 16 hours ago

Tue, Jun 10 - Sat, Jun 21

TTN

Mercer

ORD

O'Hare Intl.

$217 Roundtrip, found 5 days ago

$217

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jun 10 from Mercer to O'Hare Intl., returning Sat, Jun 21, priced at $217 found 5 days ago

Sat, Jul 5 - Sat, Jul 12

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$220 Roundtrip, found 4 days ago

$220

Roundtrip

found 4 days ago

Select American Airlines flight, departing Sat, Jul 5 from Philadelphia Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $220 found 4 days ago

Fri, Jan 16 - Tue, Jan 20

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$226 Roundtrip, found 2 days ago

$226

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Fri, Jan 16 from Philadelphia Intl. to O'Hare Intl., returning Tue, Jan 20, priced at $226 found 2 days ago

Tue, Jun 10 - Thu, Jun 19

TTN

Mercer

ORD

O'Hare Intl.

$227 Roundtrip, found 5 days ago

$227

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jun 10 from Mercer to O'Hare Intl., returning Thu, Jun 19, priced at $227 found 5 days ago

Wed, Jul 2 - Wed, Jul 9

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$229 Roundtrip, found 4 days ago

$229

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Wed, Jul 2 from Philadelphia Intl. to O'Hare Intl., returning Wed, Jul 9, priced at $229 found 4 days ago

Sat, Jul 5 - Tue, Jul 8

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$233 Roundtrip, found 2 days ago

$233

Roundtrip

found 2 days ago

Select Delta flight, departing Sat, Jul 5 from Philadelphia Intl. to O'Hare Intl., returning Tue, Jul 8, priced at $233 found 2 days ago