Austin (AUS) to Philadelphia (PHL) flight deal from $169 USD in economy class

AAAmerican Airlines

Round Trip•Economy

AUS

Austin-Bergstrom International Ai

Austin, United States

PHL

Philadelphia International Airport

Philadelphia, United States

$448 USD

-62%$169 USD

Verified Nov 4, 2025 at 7:12 PM

December 2025

Today

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1$300 2$174 3$174 4$169 5$169 6$169 7$169 8$169 9$169 10$169 11$169 12$169 13$281 14$394 15$281 16$279 17$282 18$343 19$353 20$488 21$353 22$335 23$274 24$316 25$248 26$353 27$334 28$354 29$354 30$331 31$252 1 2 3 4

Extremely Rare Availability

3% of dates checked are available within 10% of the lowest price

Monday, December 22nd, 2025

10 round-trip options

Returning

Sat, Dec 27, 2025•5 Day Trip

$616 USD

Google Flights

Returning

Sun, Dec 28, 2025•6 Day Trip

$516 USD

Google Flights

Returning

Mon, Dec 29, 2025•7 Day Trip

$443 USD

Google Flights

Returning

Tue, Dec 30, 2025•8 Day Trip

$363 USD

Google Flights

Returning

Wed, Dec 31, 2025•9 Day Trip

$335 USD

Google Flights

Returning

Thu, Jan 1, 2026•10 Day Trip

$435 USD

Google Flights

Returning

Fri, Jan 2, 2026•11 Day Trip

$437 USD

Google Flights

Returning

Sat, Jan 3, 2026•12 Day Trip

$427 USD

Google Flights

Returning

Sun, Jan 4, 2026•13 Day Trip

$437 USD

Google Flights

Returning

Mon, Jan 5, 2026•14 Day Trip

$433 USD

Google Flights