Flights from Philadelphia to Historic Route 66

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.

STL

Lambert-St. Louis Intl.

$177 Roundtrip, found 4 days ago

$177

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Sun, Jun 29 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Thu, Jul 10, priced at $177 found 4 days ago

Fri, Jul 4 - Thu, Jul 10

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$187 Roundtrip, found 4 days ago

$187

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Fri, Jul 4 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Thu, Jul 10, priced at $187 found 4 days ago

Mon, Aug 11 - Mon, Aug 18

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$197 Roundtrip, found 3 days ago

$197

Roundtrip

found 3 days ago

Select American Airlines flight, departing Mon, Aug 11 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Aug 18, priced at $197 found 3 days ago

Mon, Aug 11 - Mon, Aug 18

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$197 Roundtrip, found 3 days ago

$197

Roundtrip

found 3 days ago

Select American Airlines flight, departing Mon, Aug 11 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Aug 18, priced at $197 found 3 days ago

Sun, Jun 29 - Wed, Jul 9

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$203 Roundtrip, found 4 days ago

$203

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Sun, Jun 29 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Wed, Jul 9, priced at $203 found 4 days ago

Thu, Jun 26 - Fri, Jun 27

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$208 Roundtrip, found 22 hours ago

$208

Roundtrip

found 22 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 22 hours ago

Fri, Jul 4 - Wed, Jul 9

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$213 Roundtrip, found 4 days ago

$213

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Fri, Jul 4 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Wed, Jul 9, priced at $213 found 4 days ago

Tue, Aug 12 - Tue, Aug 19

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$217 Roundtrip, found 2 days ago

$217

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Aug 12 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Tue, Aug 19, priced at $217 found 2 days ago

Mon, Aug 11 - Mon, Aug 18

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$220 Roundtrip, found 3 days ago

$220

Roundtrip

found 3 days ago

Select American Airlines flight, departing Mon, Aug 11 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Aug 18, priced at $220 found 3 days ago

Mon, Aug 11 - Mon, Aug 18

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$222 Roundtrip, found 3 days ago

$222

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Mon, Aug 11 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Aug 18, priced at $222 found 3 days ago

Fri, Jan 16 - Tue, Jan 20

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$226 Roundtrip, found 5 days ago

$226

Roundtrip

found 5 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 5 days ago

Mon, Jun 23 - Thu, Jun 26

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$228 Roundtrip, found 22 hours ago

$228

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Mon, Jun 23 from Philadelphia Intl. to O'Hare Intl., returning Thu, Jun 26, priced at $228 found 22 hours ago

Sat, Aug 16 - Tue, Aug 19

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$231 Roundtrip, found 2 days ago

$231

Roundtrip

found 2 days ago

Select Delta flight, departing Sat, Aug 16 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Tue, Aug 19, priced at $231 found 2 days ago

Sat, Jun 28 - Mon, Jun 30

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$231 Roundtrip, found 6 days ago

$231

Roundtrip

found 6 days ago

Select United flight, departing Sat, Jun 28 from Philadelphia Intl. to O'Hare Intl., returning Mon, Jun 30, priced at $231 found 6 days ago

Mon, Aug 11 - Thu, Aug 14

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$232 Roundtrip, found 3 days ago

$232

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Mon, Aug 11 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Thu, Aug 14, priced at $232 found 3 days ago

Sat, Jun 28 - Mon, Jun 30

PHL

Philadelphia Intl.

ORD

O'Hare Intl.

$237 Roundtrip, found 6 days ago

$237

Roundtrip

found 6 days ago

Select United flight, departing Sat, Jun 28 from Philadelphia Intl. to O'Hare Intl., returning Mon, Jun 30, priced at $237 found 6 days ago

Sat, Jun 28 - Mon, Jun 30

TTN

Mercer

ORD

O'Hare Intl.

$240 Roundtrip, found 6 days ago

$240

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Jun 28 from Mercer to O'Hare Intl., returning Mon, Jun 30, priced at $240 found 6 days ago

Wed, Jun 25 - Wed, Jul 2

PHL

Philadelphia Intl.

ABQ

Albuquerque Intl. Sunport

$352 Roundtrip, found 4 days ago

$352

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Wed, Jun 25 from Philadelphia Intl. to Albuquerque Intl. Sunport, returning Wed, Jul 2, priced at $352 found 4 days ago

Fri, Jan 16 - Tue, Jan 20

PHL

Philadelphia Intl.

MDW

Midway Intl.

$395 Roundtrip, found 5 days ago

$395

Roundtrip

found 5 days ago

Select Delta flight, departing Fri, Jan 16 from Philadelphia Intl. to Midway Intl., returning Tue, Jan 20, priced at $395 found 5 days ago

Sat, Sep 13 - Sat, Sep 20

PHL

Philadelphia Intl.

FLG

Flagstaff Pulliam Field

$486 Roundtrip, found 1 day ago

$486

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Sep 13 from Philadelphia Intl. to Flagstaff Pulliam Field, returning Sat, Sep 20, priced at $486 found 1 day ago