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San Francisco, United States to San Juan, Puerto Rico for only $318 USD roundtrip

Fly cheap from San Francisco, United States to San Juan, Puerto Rico for only $318 USD roundtrip.

January 21, 2026

BOOK ON GOOGLE FLIGHTS
⚠️ Heads up: Deals typically expire within 2 to 3 days after they are sent. Prices may also increase slightly after 30 minutes, so act quickly!

Alternative Checkout Options
Book on Kiwi
Book on CheapOair
Deal Details
From:
🇺🇸 San Francisco (SFO), United States
To:
🇵🇷 San Juan (SJU), Puerto Rico
Travel Between:
Class:
Price:
$318 Save $159
Normal Price:
$477
Airlines:
Expiration Details:
These fares will last no more than 1-2 days and typically go up within 30 minutes.
How To Book
Note: To find the cheapest available fares, click the 'Pick a date' button. You'll be redirected to Kiwi.com with the flight dates pre-filled and the cabin class set to Economy by default. You can change it to your preferred class at any time.
Travel Dates
From Date To Date
March 04, 2026 March 11, 2026
Options
Baggage allowance:
Intermediate stops:
Business Class:
No
Round-trip:
Yes
Non-stop:
No

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