Philadelphia (PHL) to Austin (AUS) flight deal from $139 USD in economy class – flightdeals.net

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American Airlines

AAAmerican Airlines

One Way•Economy

Philadelphia International Airport

Philadelphia, United States

Austin-Bergstrom International Ai

Austin, United States

$337 USD

-59%$139 USD

Verified Nov 29, 2025 at 6:54 PM

January 2026

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29 30 31 1$139 2$330 3$310 4$319 5$285 6$204 7$204 8$226 9$260 10$204 11$260 12$226 13$204 14$204 15$226 16$260 17$139 18$139 19$226 20$139 21$204 22$226 23$260 24$204 25$260 26$226 27$204 28$204 29$226 30$260 31$204 1$260

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Saturday, January 17th, 2026

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