Cheap flights from Austin to Isla Caja de Muertos from CA $215

View CA $215 flight on Sun, Aug. 3, 2025Opens in a new window

Popular airlines from Austin to Isla Caja de Muertos

  • Air Canada

    Air Canada

  • WestJet

    WestJet

  • Flair Airlines

    Flair Airlines

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Porter Airlines

    Porter Airlines

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at CA $215 for one-way flights and CA $428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sun, Aug. 3 - Thu, Aug. 7
AUS
Austin
SJU
San Juan
CA $428 Roundtrip, found 6 days ago
CA $428
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Sun, Aug. 3 from Austin to San Juan, returning Thu, Aug. 7, priced at CA $428 found 6 days ago
American Airlines
Sun, Aug. 3 - Thu, Aug. 7
AUS
Austin
SJU
San Juan
CA $454 Roundtrip, found 6 days ago
CA $454
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Aug. 3 from Austin to San Juan, returning Thu, Aug. 7, priced at CA $454 found 6 days ago
American Airlines
Sun, Aug. 3 - Thu, Aug. 7
AUS
Austin
SJU
San Juan
CA $506 Roundtrip, found 6 days ago
CA $506
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Aug. 3 from Austin to San Juan, returning Thu, Aug. 7, priced at CA $506 found 6 days ago
American Airlines
Sun, Aug. 3 - Thu, Aug. 7
AUS
Austin
SJU
San Juan
CA $566 Roundtrip, found 6 days ago
CA $566
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Aug. 3 from Austin to San Juan, returning Thu, Aug. 7, priced at CA $566 found 6 days ago
Delta
Sun, Aug. 3 - Thu, Aug. 7
AUS
Austin
SJU
San Juan
CA $687 Roundtrip, found 6 days ago
CA $687
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Aug. 3 from Austin to San Juan, returning Thu, Aug. 7, priced at CA $687 found 6 days ago
JetBlue Airways
Sun, Aug. 3 - Thu, Aug. 7
AUS
Austin
SJU
San Juan
CA $1,199 Roundtrip, found 6 days ago
CA $1,199
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Sun, Aug. 3 from Austin to San Juan, returning Thu, Aug. 7, priced at CA $1,199 found 6 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

*Available to Expedia members.