COS to PHL from $333 in economy

UAUnited Airlines

Round Trip•Economy

COS

Colorado Springs Airport

Colorado Springs, United States

PHL

Philadelphia International Airport

Philadelphia, United States

$484 USD

-31%$333 USD

Verified 26 days ago

July 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29$440 30$366 1$366 2$709 3$473 4$366 5$684 6$487 7$497 8$424 9$473 10$484 11$445 12$716 13$489 14$478 15$412 16$489 17$489 18$391 19$684 20$484 21$391 22$403 23$499 24$422 25$391 26$610 27$403 28$333 29$432 30$408 31$382 1$406 2$577

Limited Availability

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

Tuesday, July 28th, 2026

10 round-trip options

Returning

Sun, Aug 2, 2026•5 Day Trip

$394 USD

Google Flights

Returning

Mon, Aug 3, 2026•6 Day Trip

$382 USD

Google Flights

Returning

Tue, Aug 4, 2026•7 Day Trip

$359 USD

Google Flights

Returning

Wed, Aug 5, 2026•8 Day Trip

$366 USD

Google Flights

Returning

Thu, Aug 6, 2026•9 Day Trip

$448 USD

Google Flights

Returning

Fri, Aug 7, 2026•10 Day Trip

$377 USD

Google Flights

Returning

Sat, Aug 8, 2026•11 Day Trip

$498 USD

Google Flights

Returning

Sun, Aug 9, 2026•12 Day Trip

$514 USD

Google Flights

Returning

Mon, Aug 10, 2026•13 Day Trip

$373 USD

Google Flights

Returning

Tue, Aug 11, 2026•14 Day Trip

$333 USD

Google Flights

Colorado Springs (COS) to Philadelphia (PHL) flight deal in economy from $333

Colorado Springs Airport

Philadelphia International Airport

July 2026

Tuesday, July 28th, 2026