San Diego (SAN) to Philadelphia (PHL) flight deal from $273 USD in economy class

UAUnited Airlines

Round Trip•Economy

SAN

San Diego International Airport

San Diego, United States

PHL

Philadelphia International Airport

Philadelphia, United States

$417 USD

-35%$273 USD

Verified Nov 5, 2025 at 12:05 AM

December 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1$338 2$285 3$285 4$304 5$294 6$285 7$314 8$295 9$285 10$285 11$304 12$324 13$327 14$346 15$325 16$344 17$344 18$391 19$421 20$358 21$405 22$374 23$313 24$273 25$273 26$359 27$389 28$361 29$360 30$313 31$274 1 2 3 4

Limited Availability

11% of dates checked are available within 10% of the lowest price

Saturday, December 13th, 2025

10 round-trip options

Returning

Thu, Dec 18, 2025•5 Day Trip

$381 USD

Google Flights

Returning

Fri, Dec 19, 2025•6 Day Trip

$422 USD

Google Flights

Returning

Sat, Dec 20, 2025•7 Day Trip

$327 USD

Google Flights

Returning

Sun, Dec 21, 2025•8 Day Trip

$381 USD

Google Flights

Returning

Mon, Dec 22, 2025•9 Day Trip

$401 USD

Google Flights

Returning

Tue, Dec 23, 2025•10 Day Trip

$369 USD

Google Flights

Returning

Wed, Dec 24, 2025•11 Day Trip

$384 USD

Google Flights

Returning

Thu, Dec 25, 2025•12 Day Trip

$361 USD

Google Flights

Returning

Fri, Dec 26, 2025•13 Day Trip

$673 USD

Google Flights

Returning

Sat, Dec 27, 2025•14 Day Trip

$530 USD

Google Flights