Flights from Chicago to Collegeville

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.

Thu, Jul 17 - Sun, Jul 20

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$150 Roundtrip, found 6 days ago

$150

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Jul 17 from O'Hare Intl. to Philadelphia Intl., returning Sun, Jul 20, priced at $150 found 6 days ago

Fri, Jun 13 - Mon, Jun 16

MDW

Midway Intl.

PHL

Philadelphia Intl.

$155 Roundtrip, found 4 days ago

$155

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Jun 13 from Midway Intl. to Philadelphia Intl., returning Mon, Jun 16, priced at $155 found 4 days ago

Thu, Jul 31 - Thu, Aug 7

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$168 Roundtrip, found 15 hours ago

$168

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Thu, Jul 31 from O'Hare Intl. to Philadelphia Intl., returning Thu, Aug 7, priced at $168 found 15 hours ago

Thu, Jul 17 - Sun, Jul 20

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$174 Roundtrip, found 6 days ago

$174

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Jul 17 from O'Hare Intl. to Philadelphia Intl., returning Sun, Jul 20, priced at $174 found 6 days ago

Thu, Jun 12 - Thu, Jun 12

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$175 Roundtrip, found 3 days ago

$175

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Jun 12 from O'Hare Intl. to Philadelphia Intl., returning Thu, Jun 12, priced at $175 found 3 days ago

Mon, Jun 9 - Fri, Jun 13

MDW

Midway Intl.

PHL

Philadelphia Intl.

$176 Roundtrip, found 4 days ago

$176

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Jun 9 from Midway Intl. to Philadelphia Intl., returning Fri, Jun 13, priced at $176 found 4 days ago

Thu, Jul 17 - Thu, Jul 17

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$178 Roundtrip, found 6 days ago

$178

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Jul 17 from O'Hare Intl. to Philadelphia Intl., returning Thu, Jul 17, priced at $178 found 6 days ago

Fri, Jun 13 - Mon, Jun 16

MDW

Midway Intl.

PHL

Philadelphia Intl.

$179 Roundtrip, found 3 days ago

$179

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jun 13 from Midway Intl. to Philadelphia Intl., returning Mon, Jun 16, priced at $179 found 3 days ago

Thu, Jul 17 - Sat, Jul 19

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$187 Roundtrip, found 6 days ago

$187

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Jul 17 from O'Hare Intl. to Philadelphia Intl., returning Sat, Jul 19, priced at $187 found 6 days ago

Thu, Jul 31 - Sat, Aug 9

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$189 Roundtrip, found 15 hours ago

$189

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Thu, Jul 31 from O'Hare Intl. to Philadelphia Intl., returning Sat, Aug 9, priced at $189 found 15 hours ago

Thu, Jul 17 - Sun, Jul 20

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$192 Roundtrip, found 6 days ago

$192

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Jul 17 from O'Hare Intl. to Philadelphia Intl., returning Sun, Jul 20, priced at $192 found 6 days ago

Fri, Aug 1 - Sat, Aug 9

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$193 Roundtrip, found 15 hours ago

$193

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Fri, Aug 1 from O'Hare Intl. to Philadelphia Intl., returning Sat, Aug 9, priced at $193 found 15 hours ago

Fri, Aug 1 - Sat, Aug 9

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$193 Roundtrip, found 15 hours ago

$193

Roundtrip

found 15 hours ago

Select United flight, departing Fri, Aug 1 from O'Hare Intl. to Philadelphia Intl., returning Sat, Aug 9, priced at $193 found 15 hours ago

Fri, Aug 1 - Sat, Aug 9

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$193 Roundtrip, found 15 hours ago

$193

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Fri, Aug 1 from O'Hare Intl. to Philadelphia Intl., returning Sat, Aug 9, priced at $193 found 15 hours ago

Fri, Jun 13 - Fri, Jun 13

MDW

Midway Intl.

PHL

Philadelphia Intl.

$194 Roundtrip, found 3 days ago

$194

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jun 13 from Midway Intl. to Philadelphia Intl., returning Fri, Jun 13, priced at $194 found 3 days ago

Thu, Jul 17 - Sun, Jul 20

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$197 Roundtrip, found 6 days ago

$197

Roundtrip

found 6 days ago

Select United flight, departing Thu, Jul 17 from O'Hare Intl. to Philadelphia Intl., returning Sun, Jul 20, priced at $197 found 6 days ago

Thu, Jul 31 - Fri, Aug 8

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$199 Roundtrip, found 15 hours ago

$199

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Thu, Jul 31 from O'Hare Intl. to Philadelphia Intl., returning Fri, Aug 8, priced at $199 found 15 hours ago

Sat, Jul 19 - Sat, Jul 19

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$203 Roundtrip, found 6 days ago

$203

Roundtrip

found 6 days ago

Select Delta flight, departing Sat, Jul 19 from O'Hare Intl. to Philadelphia Intl., returning Sat, Jul 19, priced at $203 found 6 days ago

Mon, Jun 9 - Wed, Jun 11

ORD

O'Hare Intl.

PHL

Philadelphia Intl.

$209 Roundtrip, found 3 days ago

$209

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Mon, Jun 9 from O'Hare Intl. to Philadelphia Intl., returning Wed, Jun 11, priced at $209 found 3 days ago

Tue, Jul 29 - Fri, Aug 8

ORD

O'Hare Intl.

TTN

Mercer

$220 Roundtrip, found 15 hours ago

$220

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Tue, Jul 29 from O'Hare Intl. to Mercer, returning Fri, Aug 8, priced at $220 found 15 hours ago