Cheap flights from Philadelphia to San Diego

View AU$247 flight on Sat, 30 Aug. 2025Opens in a new window

Popular airlines from Philadelphia to San Diego

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Cheap Flights from Philadelphia (ILG) to San Diego (SAN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 30 Aug. - Sat, 6 Sep.
PHL
Philadelphia
SAN
San Diego
AU$490 Return, found 4 days ago
AU$490
Return
found 4 days ago
Select American Airlines flight, departing Sat, 30 Aug. from Philadelphia to San Diego, returning Sat, 6 Sep., priced at AU$490 found 4 days ago
American Airlines
Sat, 30 Aug. - Sat, 6 Sep.
PHL
Philadelphia
CLD
Carlsbad
AU$493 Return, found 4 days ago
AU$493
Return
found 4 days ago
Select American Airlines flight, departing Sat, 30 Aug. from Philadelphia to Carlsbad, returning Sat, 6 Sep., priced at AU$493 found 4 days ago
Delta
Sat, 30 Aug. - Sat, 6 Sep.
PHL
Philadelphia
SAN
San Diego
AU$520 Return, found 4 days ago
AU$520
Return
found 4 days ago
Select Delta flight, departing Sat, 30 Aug. from Philadelphia to San Diego, returning Sat, 6 Sep., priced at AU$520 found 4 days ago
American Airlines
Sat, 30 Aug. - Sat, 6 Sep.
PHL
Philadelphia
CLD
Carlsbad
AU$570 Return, found 4 days ago
AU$570
Return
found 4 days ago
Select American Airlines flight, departing Sat, 30 Aug. from Philadelphia to Carlsbad, returning Sat, 6 Sep., priced at AU$570 found 4 days ago
United
Sat, 30 Aug. - Sat, 6 Sep.
PHL
Philadelphia
SAN
San Diego
AU$671 Return, found 4 days ago
AU$671
Return
found 4 days ago
Select United flight, departing Sat, 30 Aug. from Philadelphia to San Diego, returning Sat, 6 Sep., priced at AU$671 found 4 days ago
Alaska Airlines
Sat, 30 Aug. - Sat, 6 Sep.
PHL
Philadelphia
SAN
San Diego
AU$775 Return, found 4 days ago
AU$775
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 30 Aug. from Philadelphia to San Diego, returning Sat, 6 Sep., priced at AU$775 found 4 days ago

Find the cheapest month to fly from Philadelphia (PHL) to San Diego (SAN)

September is typically the cheapest month to fly

From AU$167 - AU$356 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.