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.

About Ric Garrido

Ric Garrido of Monterey, California started Loyalty Traveler in 2006 for traveler education on hotel and air travel, primarily using frequent flyer and frequent guest loyalty programs for bargain travel. Loyalty Traveler joined in 2008.

More articles by Ric Garrido »