Cheap flights from Seattle to Northwest San Antonio

View AU$148 flight on Fri, 22 Aug. 2025Opens in a new window

Popular airlines from Seattle to Northwest San Antonio

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Seattle (SEA) to Northwest San Antonio (SAT)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 11 Dec. - Sat, 13 Dec.
SEA
Seattle
SAT
San Antonio
AU$299 Return, found 6 days ago
AU$299
Return
found 6 days ago
Select American Airlines flight, departing Thu, 11 Dec. from Seattle to San Antonio, returning Sat, 13 Dec., priced at AU$299 found 6 days ago
Delta
Thu, 4 Sep. - Wed, 10 Sep.
SEA
Seattle
SAT
San Antonio
AU$302 Return, found 6 days ago
AU$302
Return
found 6 days ago
Select Delta flight, departing Thu, 4 Sep. from Seattle to San Antonio, returning Wed, 10 Sep., priced at AU$302 found 6 days ago
Delta
Thu, 11 Dec. - Sat, 13 Dec.
SEA
Seattle
SAT
San Antonio
AU$331 Return, found 6 days ago
AU$331
Return
found 6 days ago
Select Delta flight, departing Thu, 11 Dec. from Seattle to San Antonio, returning Sat, 13 Dec., priced at AU$331 found 6 days ago
Alaska Airlines
Thu, 11 Dec. - Sat, 13 Dec.
SEA
Seattle
SAT
San Antonio
AU$333 Return, found 6 days ago
AU$333
Return
found 6 days ago
Select Alaska Airlines flight, departing Thu, 11 Dec. from Seattle to San Antonio, returning Sat, 13 Dec., priced at AU$333 found 6 days ago
American Airlines
Thu, 11 Dec. - Sat, 13 Dec.
SEA
Seattle
SAT
San Antonio
AU$344 Return, found 6 days ago
AU$344
Return
found 6 days ago
Select American Airlines flight, departing Thu, 11 Dec. from Seattle to San Antonio, returning Sat, 13 Dec., priced at AU$344 found 6 days ago
United
Thu, 4 Sep. - Wed, 10 Sep.
SEA
Seattle
SAT
San Antonio
AU$404 Return, found 6 days ago
AU$404
Return
found 6 days ago
Select United flight, departing Thu, 4 Sep. from Seattle to San Antonio, returning Wed, 10 Sep., priced at AU$404 found 6 days ago

Find the cheapest month to fly from Seattle (SEA) to San Antonio (SAT)

September is typically the cheapest month to fly

From AU$145 - AU$274 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.