Flights for less than $600 Rt from west coast? Wow this is a sore temptation. I could be in Zurich in 13 hours???
https://thepointsguy.com/deals/zurich-switzerland-deal-alert/
We got the SAS flights to Zurich, a bit more than 13 hours, with flight from SFO to Copenhagen then on to Zurich, Swiss air is the Copenhagen to Zurich leg, but all one ticket. Biggest drawback is the 7 am return flight beginning from Zurich to Copenhagen. Just had to wait until mid August though. Flight even includes a free meal.