Delta, ITA, British Airways, and Air France have round-trip flights from Los Angeles (LAX) to Milan, Rome, Venice, or Lisbon (MXP, FCO, VCE, LIS) for $421-$545.
Some small OTAs on Skyscanner have this for cheaper than the airline. If you plan on booking there, beware of any site that charges a fee to cancel a ticket within the 24-hour “free” period. Use unknown booking sites at your own risk.
Availability varies depending on destination with most flights in March, April, May, June, October, November, December, and January. See example date list for exact dates
Carrier will depend on the dates and destination selected.
Norse Atlantic is a budget carrier with additional bag/seat fees.
Nonstop flights to Rome are on ITA or Norse Atlantic.
Click for more details and booking links Cheap Flights: Los Angeles to Milan, Rome, Venice, or Lisbon $421-$545 r/t [Mar-Jun, Oct-Jan varies] (No Christmas / Thanksgiving) – Delta / Air France / ITA / Norse Atlantic / BA