Airfare Deals American Airlines American Airlines AAdvantage Delta Airlines Delta SkyMiles San Francisco SFO San Juan SJU Puerto Rico United Airlines United Mileage Plus

AA, DL, UA $317 San Francisco to Puerto Rico SJU April-May 2016

All three U.S. legacy airlines have San Francisco SFO to San Juan SJU Puerto Rico on sale for $317 (AA) to $319 (DL/UA) round trip for travel in April and May 2016. This fare has wide open availability, seven days per week from April 4 to May 19 with only three Sunday departure dates pricing higher ($375-$395).

American Airlines San Francisco SFO – San Juan SJU Puerto Rico

$316.80  Saturday April 16 – Saturday April 23

SFO-SJU $317 AA Apr16-23

SFO-CLT-SJU-CLT-SFO = 7,541 flight miles.

This AA itinerary requires an overnight in Charlotte on the return. You can avoid an overnight return by flying back to SFO on a weekday via Philadelphia for $319 round trip on American.

United Airlines San Francisco SFO – San Juan SJU Puerto Rico

$318.30  Friday April 15 – Wednesday April 20

SFO-SJU UA $319 Apr 15-20

United Airlines $258 base fare for Mileage Plus frequent flyer miles.

Loyalty Traveler curated Airfare Deals and Google Flights and Kayak Explore tutorials.

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