Flights from Philadelphia to Lake Forest

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.

Tue, Jul 8 - Fri, Jul 11

PHL

Philadelphia Intl.

SNA

John Wayne

$256 Roundtrip, found 1 hour ago

$256

Roundtrip

found 1 hour ago

Select Spirit Airlines flight, departing Tue, Jul 8 from Philadelphia Intl. to John Wayne, returning Fri, Jul 11, priced at $256 found 1 hour ago

Fri, Jul 11 - Mon, Jul 14

PHL

Philadelphia Intl.

SNA

John Wayne

$263 Roundtrip, found 1 hour ago

$263

Roundtrip

found 1 hour ago

Select Spirit Airlines flight, departing Fri, Jul 11 from Philadelphia Intl. to John Wayne, returning Mon, Jul 14, priced at $263 found 1 hour ago

Fri, Jul 11 - Sun, Jul 13

PHL

Philadelphia Intl.

SNA

John Wayne

$296 Roundtrip, found 1 hour ago

$296

Roundtrip

found 1 hour ago

Select Spirit Airlines flight, departing Fri, Jul 11 from Philadelphia Intl. to John Wayne, returning Sun, Jul 13, priced at $296 found 1 hour ago

Sun, Jul 6 - Fri, Jul 11

PHL

Philadelphia Intl.

SNA

John Wayne

$338 Roundtrip, found 1 hour ago

$338

Roundtrip

found 1 hour ago

Select Spirit Airlines flight, departing Sun, Jul 6 from Philadelphia Intl. to John Wayne, returning Fri, Jul 11, priced at $338 found 1 hour ago

Sun, Jul 6 - Mon, Jul 14

PHL

Philadelphia Intl.

SNA

John Wayne

$345 Roundtrip, found 1 hour ago

$345

Roundtrip

found 1 hour ago

Select Spirit Airlines flight, departing Sun, Jul 6 from Philadelphia Intl. to John Wayne, returning Mon, Jul 14, priced at $345 found 1 hour ago

Wed, Jul 2 - Fri, Jul 4

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$347 Roundtrip, found 22 hours ago

$347

Roundtrip

found 22 hours ago

Select Delta flight, departing Wed, Jul 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Fri, Jul 4, priced at $347 found 22 hours ago

Wed, Jul 2 - Tue, Jul 8

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$363 Roundtrip, found 22 hours ago

$363

Roundtrip

found 22 hours ago

Select Delta flight, departing Wed, Jul 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Tue, Jul 8, priced at $363 found 22 hours ago

Sun, Jul 6 - Sun, Jul 13

PHL

Philadelphia Intl.

SNA

John Wayne

$378 Roundtrip, found 1 hour ago

$378

Roundtrip

found 1 hour ago

Select Spirit Airlines flight, departing Sun, Jul 6 from Philadelphia Intl. to John Wayne, returning Sun, Jul 13, priced at $378 found 1 hour ago

Wed, Jul 2 - Thu, Jul 10

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$382 Roundtrip, found 22 hours ago

$382

Roundtrip

found 22 hours ago

Select Delta flight, departing Wed, Jul 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Thu, Jul 10, priced at $382 found 22 hours ago

Fri, Jul 11 - Tue, Jul 15

PHL

Philadelphia Intl.

SNA

John Wayne

$398 Roundtrip, found 1 hour ago

$398

Roundtrip

found 1 hour ago

Select Delta flight, departing Fri, Jul 11 from Philadelphia Intl. to John Wayne, returning Tue, Jul 15, priced at $398 found 1 hour ago

Wed, Jul 2 - Mon, Jul 7

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$412 Roundtrip, found 22 hours ago

$412

Roundtrip

found 22 hours ago

Select United flight, departing Wed, Jul 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Jul 7, priced at $412 found 22 hours ago

Wed, Jul 2 - Mon, Jul 7

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$412 Roundtrip, found 22 hours ago

$412

Roundtrip

found 22 hours ago

Select American Airlines flight, departing Wed, Jul 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Jul 7, priced at $412 found 22 hours ago

Fri, Jul 11 - Fri, Jul 11

PHL

Philadelphia Intl.

SNA

John Wayne

$417 Roundtrip, found 1 hour ago

$417

Roundtrip

found 1 hour ago

Select Delta flight, departing Fri, Jul 11 from Philadelphia Intl. to John Wayne, returning Fri, Jul 11, priced at $417 found 1 hour ago

Sat, Jul 12 - Sun, Jul 13

PHL

Philadelphia Intl.

SNA

John Wayne

$428 Roundtrip, found 1 hour ago

$428

Roundtrip

found 1 hour ago

Select Delta flight, departing Sat, Jul 12 from Philadelphia Intl. to John Wayne, returning Sun, Jul 13, priced at $428 found 1 hour ago

Thu, Jul 10 - Thu, Jul 10

PHL

Philadelphia Intl.

SNA

John Wayne

$447 Roundtrip, found 1 hour ago

$447

Roundtrip

found 1 hour ago

Select Delta flight, departing Thu, Jul 10 from Philadelphia Intl. to John Wayne, returning Thu, Jul 10, priced at $447 found 1 hour ago

Sun, Jun 29 - Fri, Jul 4

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$453 Roundtrip, found 22 hours ago

$453

Roundtrip

found 22 hours ago

Select Delta flight, departing Sun, Jun 29 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Fri, Jul 4, priced at $453 found 22 hours ago

Wed, Jul 2 - Mon, Jul 7

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$457 Roundtrip, found 22 hours ago

$457

Roundtrip

found 22 hours ago

Select United flight, departing Wed, Jul 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Jul 7, priced at $457 found 22 hours ago

Wed, Jul 2 - Mon, Jul 7

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$461 Roundtrip, found 22 hours ago

$461

Roundtrip

found 22 hours ago

Select United flight, departing Wed, Jul 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Jul 7, priced at $461 found 22 hours ago

Mon, Jul 7 - Sat, Jul 12

PHL

Philadelphia Intl.

SNA

John Wayne

$480 Roundtrip, found 1 hour ago

$480

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Mon, Jul 7 from Philadelphia Intl. to John Wayne, returning Sat, Jul 12, priced at $480 found 1 hour ago

Wed, Jul 2 - Mon, Jul 7

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$540 Roundtrip, found 22 hours ago

$540

Roundtrip

found 22 hours ago

Select JetBlue Airways flight, departing Wed, Jul 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Jul 7, priced at $540 found 22 hours ago