Direct (nonstop) flights from Rome to Seattle
2 airlines fly nonstop from Fiumicino (FCO) to Seattle Tacoma International (SEA). It's 5,689 miles (9,155 km), about 11h 20m in the air. Operated by Alaska Airlines, Delta Air Lines.
Alaska Airlines
Delta Air Lines
Route data last updated: May 30, 2026
Airlines with non-stop flights
AS
Alaska Airlines
DL
Delta Air Lines
Alternative Routes
Other ways to fly from Rome to Seattle with one stop · direct emits 870 kg CO₂ per passenger
Looking for the return flight?
SEA → FCO: Flights from Seattle to RomeOther direct flights from Rome
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from Rome to Seattle?
A nonstop flight from Rome (FCO) to Seattle (SEA) takes approximately 11 hours and 20 minutes. The distance is 5,689 miles (9,155 km).
Which airlines fly nonstop from Rome to Seattle?
2 airlines: Alaska Airlines, Delta Air Lines.
Is there a nonstop flight from Rome to Seattle?
Yes. 2 airlines: Alaska Airlines, Delta Air Lines.
How far is Rome from Seattle?
The flight distance from Rome to Seattle is 5,689 miles (9,155 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 Seattle?
Seattle is 9 hours behind Rome. (Europe/Rome vs America/Los_Angeles.)
Will I experience jet lag flying from Rome to Seattle?
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 Seattle?
At 11h 20m, 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 Seattle?
Roughly 870 kg CO2 per passenger one-way. That's about the same as driving 4,350 km.
Is the return flight from Seattle 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 Seattle?
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.