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

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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

Sunday, December 28th, 2025

10 round-trip options

Returning

Fri, Jan 2, 2026•5 Day Trip

$497 USD

Google Flights

Returning

Sat, Jan 3, 2026•6 Day Trip

$547 USD

Google Flights

Returning

Sun, Jan 4, 2026•7 Day Trip

$481 USD

Google Flights

Returning

Mon, Jan 5, 2026•8 Day Trip

$437 USD

Google Flights

Returning

Tue, Jan 6, 2026•9 Day Trip

$361 USD

Google Flights

Returning

Wed, Jan 7, 2026•10 Day Trip

$372 USD

Google Flights

Returning

Thu, Jan 8, 2026•11 Day Trip

$391 USD

Google Flights

Returning

Fri, Jan 9, 2026•12 Day Trip

$371 USD

Google Flights

Returning

Sat, Jan 10, 2026•13 Day Trip

$382 USD

Google Flights

Returning

Sun, Jan 11, 2026•14 Day Trip

$391 USD

Google Flights