Cheap Flights from Seattle to Northwest Austin

View €103 flight on Sat, 20 Sep 2025Opens in a new window

Popular airlines from Seattle to Northwest Austin

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Hawaiian Airlines

    Hawaiian Airlines

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Cheap flights from Seattle to Northwest Austin (SEA-AUS)

Prices were available within the past 7 days and start at €103 for one-way flights and €171 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 6 Sep - Sat, 13 Sep
SEA
Seattle
AUS
Austin
€171 Return, found 2 days ago
€171
Return
found 2 days ago
Select Delta flight, departing Sat, 6 Sep from Seattle to Austin, returning Sat, 13 Sep, priced at €171 found 2 days ago
American Airlines
Sat, 6 Sep - Sat, 13 Sep
SEA
Seattle
AUS
Austin
€232 Return, found 2 days ago
€232
Return
found 2 days ago
Select American Airlines flight, departing Sat, 6 Sep from Seattle to Austin, returning Sat, 13 Sep, priced at €232 found 2 days ago
American Airlines
Sat, 6 Sep - Sat, 13 Sep
SEA
Seattle
AUS
Austin
€249 Return, found 2 days ago
€249
Return
found 2 days ago
Select American Airlines flight, departing Sat, 6 Sep from Seattle to Austin, returning Sat, 13 Sep, priced at €249 found 2 days ago
United
Sat, 6 Sep - Sat, 13 Sep
SEA
Seattle
AUS
Austin
€266 Return, found 2 days ago
€266
Return
found 2 days ago
Select United flight, departing Sat, 6 Sep from Seattle to Austin, returning Sat, 13 Sep, priced at €266 found 2 days ago
American Airlines
Sat, 6 Sep - Sat, 13 Sep
SEA
Seattle
AUS
Austin
€275 Return, found 2 days ago
€275
Return
found 2 days ago
Select American Airlines flight, departing Sat, 6 Sep from Seattle to Austin, returning Sat, 13 Sep, priced at €275 found 2 days ago
Delta
Sat, 6 Sep - Sat, 13 Sep
SEA
Seattle
AUS
Austin
€275 Return, found 2 days ago
€275
Return
found 2 days ago
Select Delta flight, departing Sat, 6 Sep from Seattle to Austin, returning Sat, 13 Sep, priced at €275 found 2 days ago

Find the cheapest month to fly from Seattle (SEA) to Austin (AUS)

March is typically the cheapest month to fly

From €113 - €368 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.