Cheap flights from Austin to San Juan

View AU$242 flight on Tue, 12 Aug. 2025Opens in a new window

Popular airlines from Austin to San Juan

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Cheap Flights from Austin (AUS) to San Juan (SJU)

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.

United
Tue, 12 Aug. - Sat, 16 Aug.
AUS
Austin
SJU
San Juan
AU$483 Return, found 4 days ago
AU$483
Return
found 4 days ago
Select United flight, departing Tue, 12 Aug. from Austin to San Juan, returning Sat, 16 Aug., priced at AU$483 found 4 days ago
United
Tue, 12 Aug. - Sat, 16 Aug.
AUS
Austin
SJU
San Juan
AU$620 Return, found 4 days ago
AU$620
Return
found 4 days ago
Select United flight, departing Tue, 12 Aug. from Austin to San Juan, returning Sat, 16 Aug., priced at AU$620 found 4 days ago
United
Tue, 12 Aug. - Sat, 16 Aug.
AUS
Austin
SJU
San Juan
AU$621 Return, found 4 days ago
AU$621
Return
found 4 days ago
Select United flight, departing Tue, 12 Aug. from Austin to San Juan, returning Sat, 16 Aug., priced at AU$621 found 4 days ago
American Airlines
Tue, 12 Aug. - Sat, 16 Aug.
AUS
Austin
SJU
San Juan
AU$634 Return, found 4 days ago
AU$634
Return
found 4 days ago
Select American Airlines flight, departing Tue, 12 Aug. from Austin to San Juan, returning Sat, 16 Aug., priced at AU$634 found 4 days ago
American Airlines
Tue, 12 Aug. - Sat, 16 Aug.
AUS
Austin
SJU
San Juan
AU$692 Return, found 4 days ago
AU$692
Return
found 4 days ago
Select American Airlines flight, departing Tue, 12 Aug. from Austin to San Juan, returning Sat, 16 Aug., priced at AU$692 found 4 days ago
Delta
Tue, 12 Aug. - Sat, 16 Aug.
AUS
Austin
SJU
San Juan
AU$790 Return, found 4 days ago
AU$790
Return
found 4 days ago
Select Delta flight, departing Tue, 12 Aug. from Austin to San Juan, returning Sat, 16 Aug., priced at AU$790 found 4 days ago

Find the cheapest month to fly from Austin (AUS) to San Juan (SJU)

March is typically the cheapest month to fly

From AU$275 - AU$890 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.