San Francisco – Costa Rica $338 rt on Delta Airlines (travel Jan-Feb)

Delta Airlines has roundtrip airfares from San Francisco (SFO) to San Jose Costa Rica (SJO) for $338 including taxes and fees. This makes 1 stop.
Travel Availability:
Departs SFO: Jan 25, 26, 27, 30 31; Feb 19, 20; Mar 1-30; April 1-15
Return dates of a trip 7-10 days from departure
book it on Expedia
My sample travel dates: March 1-8, 2017. Thank you, the Flight Deal.