Phoenix (PHX) to Austin (AUS) flight deal from $139 USD in economy class

AAAmerican Airlines

Round Trip•Economy

PHX

Phoenix Sky Harbor International Airport

Phoenix, United States

AUS

Austin-Bergstrom International Ai

Austin, United States

$406 USD

-66%$139 USD

Verified Nov 3, 2025 at 5:03 AM

December 2025

Today

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1$274 2$139 3$139 4$174 5$174 6$139 7$203 8$174 9$139 10$139 11$174 12$174 13$201 14$265 15$236 16$201 17$139 18$249 19$269 20$259 21$278 22$249 23$249 24$201 25$139 26$269 27$262 28$288 29$269 30$259 31$211 1 2 3 4

Extremely Rare Availability

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

Tuesday, December 23rd, 2025

10 round-trip options

Returning

Sun, Dec 28, 2025•5 Day Trip

$388 USD

Google Flights

Returning

Mon, Dec 29, 2025•6 Day Trip

$369 USD

Google Flights

Returning

Tue, Dec 30, 2025•7 Day Trip

$359 USD

Google Flights

Returning

Wed, Dec 31, 2025•8 Day Trip

$249 USD

Google Flights

Returning

Thu, Jan 1, 2026•9 Day Trip

$249 USD

Google Flights

Returning

Fri, Jan 2, 2026•10 Day Trip

$379 USD

Google Flights

Returning

Sat, Jan 3, 2026•11 Day Trip

$369 USD

Google Flights

Returning

Sun, Jan 4, 2026•12 Day Trip

$388 USD

Google Flights

Returning

Mon, Jan 5, 2026•13 Day Trip

$359 USD

Google Flights

Returning

Tue, Jan 6, 2026•14 Day Trip

$259 USD

Google Flights