United: San Francisco / Seattle / Los Angeles – San Juan, Puerto Rico. $335 – $340. Roundtrip, including all Taxes

United has put San Juan on sale for the Fall. If you can plan this far ahead for Fall travel, this is a very good deal — almost mileage run worthy at 4.2 cents per mile (with some creative routing, it can be a lot better. A minimum 2-night stay is required).

San Juan, Puerto Rico Photo: apium, used under Creative Commons License (By 2.0)

Sample Date:

  • September 7th – 13th. Valid for travel from September 6th – November 15th. . Use ITA Software Matrix Airfare Search and flexible month search to see availability.  Must purchase 21 days in advance of departure and by April 23rd (That’s TODAY!).


  • Sample from San Francisco
  • SFO – EWR (Newark) – SJU (San Juan) – IAD (Washington DC) – SFO


  • 7,815 miles or 4.2 cents per mile



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