Nonstop Flights: Austin to/from Seattle $157 r/t [June-March] â Delta Delta has round-trip flights from Austin (AUS) to Seattle (SEA) for $157, NONSTOP. Flights June to March. Weekends available. Origin/Destination reversible. Click for more details and booking links Nonstop Flights: Austin to/from Seattle $157 r/t [June-March] â Delta . |