Are there nonstop flights from Rome (FCO) to Los Angeles (LAX)?

Yes. ITA Airways fly this route. Flight time is about 12h 30m.

What is the fastest connection from Rome (FCO) to Los Angeles (LAX)?

via London ≈ 13h, via Dublin ≈ 13h, via Paris ≈ 13h (estimated flying time, excluding layovers).

from 27,500 ANA miles, from 40,000 JAL miles (economy, one way, based on the published award charts).

Rome–Fiumicino Leonardo da Vinci International Airport (FCO) to Los Angeles International Airport (LAX)・10,203 km

Nonstop flights available (1 airline). Flight time about 12h 30m. Nonstop return flights also operate.

With milesANA 27,500 miles+ (via ZRH)JAL 40,000 miles+ (via LHR)Economy, one way, estimate. Tap a connection for miles by cabin.

51 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.