Expedia.com and Orbitz.com have Oneworld American Airlines/British Airways San Francisco to Amsterdam ticket prices at $599 round trip for December holiday season flights.
I don’t find these ticket prices through Google Flights.
Departure on Dec 24 and Dec 25 with return afrom January 4 pulls up low fares.
Orbitz ticket AA/BA San Francisco SFO – Amsterdam
This is quite a deal when most ticket prices are currently over $1,000 to travel from California to Europe during the December holidays.