Some great options from Austria to Los Angeles are available based on various airlines and including travel dates over Christmas holidays and NYE. The cheapest option is currently with Air Berlin with short layover in Dusseldorf when departing from Vienna. Another suggestions are based on Star Alliance airlines Austrian Airlines / Lufthansa / Swiss / United. Consider to depart from other main airports in Austria such as Salzburg, Innsbruck or Graz. Return flights from Austria to Los Angeles €334! 
Flights based on this Air Berlin or Austrian Airlines / Lufthansa promotion are available in winter season 2016/2017. Star Alliance are offering also some great option to visit sunny California over Christmas and / or New Year. Please refer to below booking samples if interested in one of the solutions..
Booking samples
Vienna - Los Angeles for €366 (Christmas / NYE travel date)
Want to book an accommodation in Los Angeles in advance you may use Booking.com or consider following promo codes.: Hotels.com, Amoma, Hotelopia or Venere. To check your connection possibilities we recommend to use service of Skyscanner.
Booking sample of cheap return flights from Austria to Los Angeles €334 here. (+ Christmas holidays) below. In this case you would depart from Vienna to California on 12th of November. You would then return form America back to Europe on 26th of November 2016.
