SAN to PHL from $426 in economy

UAUnited Airlines

Round Trip•Economy

SAN

San Diego International Airport

San Diego, United States

PHL

Philadelphia International Airport

Philadelphia, United States

$511 USD

-17%$426 USD

Verified 16 days ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$478 1$426 2$426 3$473 4$478 5$426 6$483 7$478 8$426 9$431 10$557 11$535 12$483 13$560 14$525 15$483 16$513 17$535 18$583 19$520 20$535 21$530 22$426 23$426 24$468 25$478 26$426 27$478 28$478 29$426 30$426 31$468 1$478 2$586 3$478

Fair Availability

22% of dates checked are available within 10% of the lowest price

Thursday, December 10th, 2026

6 round-trip options

Returning

Thu, Dec 17, 2026•7 Day Trip

$558 USD

Google Flights

Returning

Fri, Dec 18, 2026•8 Day Trip

$643 USD

Google Flights

Returning

Sun, Dec 20, 2026•10 Day Trip

$560 USD

Google Flights

Returning

Mon, Dec 21, 2026•11 Day Trip

$565 USD

Google Flights

Returning

Wed, Dec 23, 2026•13 Day Trip

$638 USD

Google Flights

Returning

Thu, Dec 24, 2026•14 Day Trip

$557 USD

Google Flights

San Diego (SAN) to Philadelphia (PHL) flight deal in economy from $426

San Diego International Airport

Philadelphia International Airport

December 2026

Thursday, December 10th, 2026