Direct (nonstop) flights from Rome to San Francisco
2 airlines fly nonstop from Fiumicino (FCO) to San Francisco International (SFO). It's 6,265 miles (10,083 km), about 12h 55m in the air. Operated by ITA Airways, United Airlines.
ITA Airways
United Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Rome to San Francisco with one stop · direct emits 958 kg CO₂ per passenger
Looking for the return flight?
SFO → FCO: Flights from San Francisco to RomeOther direct flights from Rome
Direct flights from San Francisco (SFO)
Frequently Asked Questions
How long is the direct flight from Rome to San Francisco?
A nonstop flight from Rome (FCO) to San Francisco (SFO) takes approximately 12 hours and 55 minutes. The distance is 6,265 miles (10,083 km).
Which airlines fly nonstop from Rome to San Francisco?
2 airlines: ITA Airways, United Airlines.
Is there a nonstop flight from Rome to San Francisco?
Yes. 2 airlines: ITA Airways, United Airlines.
How far is Rome from San Francisco?
The flight distance from Rome to San Francisco is 6,265 miles (10,083 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Tokyo.
What is the time difference between Rome and San Francisco?
San Francisco is 9 hours behind Rome. (Europe/Rome vs America/Los_Angeles.)
Will I experience jet lag flying from Rome to San Francisco?
Probably — 9-hour time difference means significant jet lag. Expect about 1 day of adjustment per hour of shift. Flying westward is generally easier to adjust to.
What type of aircraft flies from Rome to San Francisco?
At 12h 55m, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
Do I need a visa to travel from Italy to USA?
Depends on your passport. Check with the USA embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Rome to San Francisco?
Roughly 958 kg CO2 per passenger one-way. That's about the same as driving 4,790 km.
Is the return flight from San Francisco to Rome also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Rome to San Francisco?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Fiumicino for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.