Cheap flights from Austin to Isla Caja de Muertos from CA $363

View CA $363 flight on Sun, Nov. 23, 2025Opens in a new window

Popular airlines from Austin to Isla Caja de Muertos

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  • American Airlines

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  • United

    United

  • Delta

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  • Porter Airlines

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Cheap flights from Austin (AUS) to Isla Caja de Muertos (SJU)

Prices were available within the past 7 days and start at CA $363 for one-way flights and CA $759 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sun, Nov. 23 - Fri, Nov. 28
AUS
Austin
SJU
San Juan
CA $759 Roundtrip, found 5 days ago
CA $759
Roundtrip
found 5 days ago
Select Spirit Airlines flight, departing Sun, Nov. 23 from Austin to San Juan, returning Fri, Nov. 28, priced at CA $759 found 5 days ago
Spirit Airlines
Sun, Nov. 23 - Fri, Nov. 28
AUS
Austin
SJU
San Juan
CA $811 Roundtrip, found 5 days ago
CA $811
Roundtrip
found 5 days ago
Select Spirit Airlines flight, departing Sun, Nov. 23 from Austin to San Juan, returning Fri, Nov. 28, priced at CA $811 found 5 days ago
American Airlines
Sun, Nov. 23 - Fri, Nov. 28
AUS
Austin
SJU
San Juan
CA $839 Roundtrip, found 5 days ago
CA $839
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Nov. 23 from Austin to San Juan, returning Fri, Nov. 28, priced at CA $839 found 5 days ago

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

March is typically the cheapest month to fly

From CA $246 - CA $796 per traveller.

Graph displaying average flight prices per month

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