| Nonstop Flights: Austin to/from Portland $177 r/t â Alaska Airlines Alaska Airlines has round-trip flights from Austin (AUS) to Portland (PDX) for $177, NONSTOP. Flights March to May. Departures on Tuesday, Wednesday, and Saturday. Origin/Destination reversible. You can also save an additional 16% off your Hotel or up to $150 for Flight+Hotel packages on CheapTickets by using the âWANDERLUSTâ or âADVENTURE150â coupon codes at checkout (before finalizing your booking). Note: Carry-on bag is allowed for free on Alaska Airlines. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate. Want a notification sent straight to your phone when any new deals are found? Join our Telegram channel and never miss another deal. We donât charge a subscription fee. All of our deal notifications are available for FREE via Instagram, Facebook, Twitter, Telegram, our Webpage, and our E-mail list. If you are paying someone a subscription fee for our content, you are being ripped off. Read More Nonstop Flights: Austin to/from Portland $177 r/t â Alaska Airlines . | 