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

Friday, December 18th, 2026

6 round-trip options

Returning

Fri, Dec 25, 2026•7 Day Trip

$583 USD

Google Flights

Returning

Sat, Dec 26, 2026•8 Day Trip

$1,020 USD

Google Flights

Returning

Mon, Dec 28, 2026•10 Day Trip

$691 USD

Google Flights

Returning

Tue, Dec 29, 2026•11 Day Trip

$677 USD

Google Flights

Returning

Thu, Dec 31, 2026•13 Day Trip

$583 USD

Google Flights

Returning

Fri, Jan 1, 2027•14 Day Trip

$583 USD

Google Flights

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

San Diego International Airport

Philadelphia International Airport

December 2026

Friday, December 18th, 2026