A vibrant, colorful street with decorated buildings and hanging ornaments
37% below the usual fare
Exit Row · Boarding passSeat 14C

Cheap flights San FranciscoSan Juan

From
SFOSan Francisco
To
SJUSan Juan
Travel
December 2026
Flight
2 stops, return

Fare from San Francisco

US$439

Usually about US$695

-37%vs the usual price

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Price seen 29 Oct 2026 · fares change fast and can sell out

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An aerial view of an island in the middle of the ocean
Nils Huenerfuerst / Unsplash
City near body of water during daytime
Wei Zeng / Unsplash

Why go

San Juan.

Spanish forts, the El Yunque rainforest and a bay that glows at night.

Best timeDecember to April, the drier months.

  • Beach
  • Big city

Three things to do

  1. Old San Juan's forts
  2. El Yunque rainforest
  3. The bioluminescent bay
Distance
5,829 km
Flight
2 stops
Trip
Return

Make it a trip.

Also boarding from San Francisco.

Every deal from San Francisco

Prices are the cheapest fare we found from San Francisco, in USD, for one adult, and can change when you click. Some links are affiliate links: they never change which deals we send or what you pay. How we make money.