Cheap flights from San Francisco to Puerto Rico Island

View AU$282 flight on Mon, 26 Jan. 2026Opens in a new window

Popular airlines from San Francisco to Puerto Rico Island

  • 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 San Francisco (SJC) to Puerto Rico Island (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.

Delta
Wed, 15 Oct. - Fri, 24 Oct.
SFO
San Francisco
SJU
San Juan
AU$562 Return, found 7 hours ago
AU$562
Return
found 7 hours ago
Select Delta flight, departing Wed, 15 Oct. from San Francisco to San Juan, returning Fri, 24 Oct., priced at AU$562 found 7 hours ago
United
Fri, 17 Oct. - Tue, 21 Oct.
SFO
San Francisco
SJU
San Juan
AU$631 Return, found 7 hours ago
AU$631
Return
found 7 hours ago
Select United flight, departing Fri, 17 Oct. from San Francisco to San Juan, returning Tue, 21 Oct., priced at AU$631 found 7 hours ago
American Airlines
Fri, 17 Oct. - Tue, 21 Oct.
SFO
San Francisco
SJU
San Juan
AU$668 Return, found 7 hours ago
AU$668
Return
found 7 hours ago
Select American Airlines flight, departing Fri, 17 Oct. from San Francisco to San Juan, returning Tue, 21 Oct., priced at AU$668 found 7 hours ago
JetBlue Airways
Mon, 20 Oct. - Tue, 21 Oct.
SFO
San Francisco
SJU
San Juan
AU$675 Return, found 7 hours ago
AU$675
Return
found 7 hours ago
Select JetBlue Airways flight, departing Mon, 20 Oct. from San Francisco to San Juan, returning Tue, 21 Oct., priced at AU$675 found 7 hours ago
JetBlue Airways
Sat, 18 Oct. - Wed, 22 Oct.
SFO
San Francisco
SJU
San Juan
AU$684 Return, found 7 hours ago
AU$684
Return
found 7 hours ago
Select JetBlue Airways flight, departing Sat, 18 Oct. from San Francisco to San Juan, returning Wed, 22 Oct., priced at AU$684 found 7 hours ago
Alaska Airlines
Fri, 17 Oct. - Tue, 21 Oct.
SFO
San Francisco
SJU
San Juan
AU$788 Return, found 7 hours ago
AU$788
Return
found 7 hours ago
Select Alaska Airlines flight, departing Fri, 17 Oct. from San Francisco to San Juan, returning Tue, 21 Oct., priced at AU$788 found 7 hours ago

Find the cheapest month to fly from San Francisco (SFO) to San Juan (SJU)

April is typically the cheapest month to fly

From AU$307 - AU$1,018 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.