San Francisco to San Juan flights (SFO → SJU)
Looking for San Francisco to San Juan flights? Cheapest round-trip I’ve found: US$525 on United, 2 stop(s), departing 2027-02-28. That’s US$2 below the typical price for this route. Cheap flights from San Francisco to San Juan change daily — I re-check this route three times a day.
Deal score: Higher than usual — cheaper than 5% of prices I’ve seen on this route.
Best months to fly San Francisco to San Juan
| Month | Cheapest seen |
|---|---|
| September | US$296 |
| January | US$343 |
| October | US$385 |
| August | US$387 |
| November | US$405 |
| February | US$454 |
How to book this fare
I don’t sell tickets — I track prices and point you to where to look. To book San Francisco to San Juan flights:
- Search San Francisco to San Juan on Google Flights for the dates shown above (Feb 2027) — the fare I found is usually still available there.
- Compare the same dates on metasearch sites like Skyscanner or KAYAK to confirm you’re seeing the lowest price.
- Book directly with the airline when you can — it’s often the same price and makes changes or cancellations much easier.
Fares change constantly. If the price has moved, check back — I re-check this route daily.
Other San Francisco to … flights
- San Francisco to Brasilia flights — US$713
- San Francisco to Auckland flights — US$894
- San Francisco to Bucharest flights — US$706
- San Francisco to Phuket flights — US$813
- San Francisco to Bali flights — US$840
- San Francisco to Lisbon flights — US$725
- San Francisco to Cartagena flights — US$619
- San Francisco to Asuncion flights — US$1,245
All flights to San Juan · All flights from San Francisco
Prices last checked: 2026-09-24, 10:13:03 p.m.. Prices are indicative and change quickly — confirm on the airline site before booking. See how I find these deals.