Cheapest one-way SFO–SJU flights, December

AirHint found the following cheapest one-way flights from San Francisco (SFO) to San Juan (SJU) in December 2026 (see full year).

One-Way flights

20 Dec United
19 Dec Flair Airlines
18 Dec Southwest Airlines

Also check the deals for return flights from San Francisco to San Juan in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

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