Austin (AUS) to Portland (PDX) flight deal in economy from $317

Friday, December 18th, 2026

5 round-trip options

Returning
Wed, Dec 23, 20265 Day Trip
$470 USD
Returning
Thu, Dec 24, 20266 Day Trip
$462 USD
Returning
Fri, Dec 25, 20267 Day Trip
$462 USD
Returning
Tue, Dec 29, 202611 Day Trip
$472 USD
Returning
Wed, Dec 30, 202612 Day Trip
$472 USD