Flights from Philadelphia to Riverside

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.

Sat, Aug 16 - Mon, Aug 18

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$288 Roundtrip, found 1 day ago

$288

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 16 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Aug 18, priced at $288 found 1 day ago

Thu, Aug 28 - Thu, Aug 28

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$308 Roundtrip, found 10 hours ago

$308

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Thu, Aug 28 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Thu, Aug 28, priced at $308 found 10 hours ago

Fri, Aug 8 - Sat, Aug 9

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$328 Roundtrip, found 3 days ago

$328

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Sat, Aug 9, priced at $328 found 3 days ago

Sat, Aug 2 - Sun, Aug 24

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$348 Roundtrip, found 1 day ago

$348

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 2 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Sun, Aug 24, priced at $348 found 1 day ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$377 Roundtrip, found 6 days ago

$377

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $377 found 6 days ago

Thu, Aug 7 - Sat, Aug 9

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$388 Roundtrip, found 3 days ago

$388

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Aug 7 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Sat, Aug 9, priced at $388 found 3 days ago

Thu, Aug 7 - Mon, Aug 11

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$408 Roundtrip, found 3 days ago

$408

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Aug 7 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Aug 11, priced at $408 found 3 days ago

Thu, Aug 7 - Mon, Aug 11

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$409 Roundtrip, found 3 days ago

$409

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Aug 7 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Aug 11, priced at $409 found 3 days ago

Thu, Aug 7 - Mon, Aug 11

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$418 Roundtrip, found 3 days ago

$418

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Aug 7 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Aug 11, priced at $418 found 3 days ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$425 Roundtrip, found 6 days ago

$425

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $425 found 6 days ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$430 Roundtrip, found 6 days ago

$430

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $430 found 6 days ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$443 Roundtrip, found 6 days ago

$443

Roundtrip

found 6 days ago

Select Delta flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $443 found 6 days ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$449 Roundtrip, found 6 days ago

$449

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $449 found 6 days ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$465 Roundtrip, found 6 days ago

$465

Roundtrip

found 6 days ago

Select United flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $465 found 6 days ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$475 Roundtrip, found 6 days ago

$475

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $475 found 6 days ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$477 Roundtrip, found 6 days ago

$477

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $477 found 6 days ago

Thu, Oct 23 - Thu, Oct 30

PHL

Philadelphia Intl.

PSP

Palm Springs Intl.

$480 Roundtrip, found 6 days ago

$480

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Oct 23 from Philadelphia Intl. to Palm Springs Intl., returning Thu, Oct 30, priced at $480 found 6 days ago

Thu, Mar 26 - Mon, Mar 30

PHL

Philadelphia Intl.

SNA

John Wayne

$499 Roundtrip, found 20 hours ago

$499

Roundtrip

found 20 hours ago

Select United flight, departing Thu, Mar 26 from Philadelphia Intl. to John Wayne, returning Mon, Mar 30, priced at $499 found 20 hours ago

Thu, Mar 26 - Mon, Mar 30

PHL

Philadelphia Intl.

SNA

John Wayne

$676 Roundtrip, found 20 hours ago

$676

Roundtrip

found 20 hours ago

Select Alaska Airlines flight, departing Thu, Mar 26 from Philadelphia Intl. to John Wayne, returning Mon, Mar 30, priced at $676 found 20 hours ago

Thu, Aug 7 - Mon, Aug 11

PHL

Philadelphia Intl.

ONT

Los Angeles - Ontario Intl.

$945 Roundtrip, found 3 days ago

$945

Roundtrip

found 3 days ago

Select JetBlue Airways flight, departing Thu, Aug 7 from Philadelphia Intl. to Los Angeles - Ontario Intl., returning Mon, Aug 11, priced at $945 found 3 days ago