$459 Cheap Flights from Rome (FCO) to Seattle (SEA)

Rome (FCO) to Seattle (SEA) at a glance

Embark on an exciting journey from Rome (FCO) to Seattle (SEA) with a variety of airlines catering to this long-haul international route. Explore options from both full-service and low-cost carriers to pinpoint the travel itinerary that aligns perfectly with your budget, schedule, and plans as you prepare to discover Seattle's iconic attractions and neighborhoods. Get all the essential details for flights departing from Fiumicino - Leonardo da Vinci International Airport (FCO) to Seattle - Tacoma International Airport (SEA).

• Fastest flight duration: around 12h 45m in-flight, plus roughly 2h 45m layover with one stop
• Route distance: roughly 5,700 miles (9,170 km)
• Flights per week: around 10 departures on average
• Typical fares (one-way): economy tickets often range from $480–$1465, depending on seasonality and how far ahead you book

Flights from Fiumicino - Leonardo da Vinci International Airport (FCO) to Seattle - Tacoma International Airport (SEA)

According to recent traveler bookings, here are the top airlines favored for flights from Rome to Seattle, especially for one-stop and multi-stop options. Popular layover choices include Keflavik International Airport (KEF) with approximately a 1 hour and 15 minute layover, Istanbul Airport (IST) at around 4 hours, and Calgary International Airport (YYC) with about a 2 hour and 45 minute layover. This variety allows you to mix and match price, total travel time, and cabin class to discover the best itinerary.

• Icelandair: This full-service airline provides one-stop service, with one-way ticket prices generally falling between $530 and $1805. It represents about 22% of the departures on this route, featuring an in-flight duration of 12 hours and 45 minutes, with the total travel time around 15 hours, including layover.
• Turkish Airlines: Another full-service option, Turkish Airlines offers one-stop flights with one-way fares that typically range from $570 to $2010. This carrier accounts for approximately 19% of departures on this route, with an in-flight time of 12 hours and 45 minutes, leading to a total journey time of roughly 15 hours, including layovers.
• WestJet: Operating as a low-cost carrier, WestJet provides one-stop service with one-way fares usually between $490 and $1100. It captures around 13% of the departures for this route, with an in-flight duration of 12 hours and 45 minutes and a total journey time close to 15 hours, factoring in layovers.
• Condor: This low-cost airline offers both one-stop and multi-stop services, with one-way fares ranging from $480 to $775. Condor makes up approximately 12% of departures on this route, featuring a standard in-flight time of 12 hours and 45 minutes, resulting in a total travel duration of about 15 hours.
• Aer Lingus: As a full-service carrier, Aer Lingus provides one-stop service, with one-way fares typically between $630 and $1515. This airline accounts for roughly 9% of departures on this route, with an in-flight time of 12 hours and 45 minutes and a total journey time near 15 hours, including layovers.

Travelers flying from Rome to Seattle can opt to enhance their experience with an upgrade to business class, available through Icelandair and Turkish Airlines.

Best time to fly from Rome (FCO) to Seattle (SEA)

The most popular months for travelers flying from Rome to Seattle are May, June, and July, when peak temperatures in Seattle reach up to 67.1°F in July. If you prefer quieter travel, consider February, the least busy time to visit with temperatures around 40.5°F and typically the lowest average one-way fare (around $625). Flight availability peaks in June, with approximately 14 flights per week, making it easier to find convenient departure times.

• Cheapest time to fly: February usually offers good deals with average one-way fare around $625, roughly 30% cheaper than the yearly average.
• Most flight options: June has the highest number of flights from Rome to Seattle, with approximately 14 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Rome (FCO) to Seattle (SEA)

• Rome to Seattle (CIA-SEA): Ciampino Airport (CIA) is approximately 18 miles from Fiumicino - Leonardo da Vinci International Airport (FCO).
• Rome to Seattle (CIA-BFI): Ciampino Airport (CIA) is about 18 miles from Fiumicino - Leonardo da Vinci International Airport (FCO), while Boeing Field Airport (BFI) lies roughly 6 miles from Seattle - Tacoma International Airport (SEA).
• Perugia San Francesco d'Assisi – Umbria Intl. Airport to Seattle (PEG-SEA): Perugia San Francesco d'Assisi – Umbria International Airport (PEG) is located around 91 miles from Fiumicino - Leonardo da Vinci International Airport (FCO).

How to find the best prices for flights from Rome (FCO) to Seattle (SEA)

Getting some of the best deals on flights from Rome to Seattle is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually found when booking within two weeks, although most travelers tend to book at least two months in advance. Morning departures between 5 a.m. and 12 p.m. often offer lower prices and are the most popular flight times. Additionally, flying on Thursday generally provides cheaper options, while Saturday remains the most popular travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from Fiumicino - Leonardo da Vinci International Airport

Seattle welcomes travelers from Rome with a range of transport options based on price, convenience, and proximity. For departures, Fiumicino - Leonardo da Vinci International Airport is roughly a 25-minute drive (covering about 19 miles) from central Rome. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
• Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles away on foot, while Tukwila Station, a train station, is situated approximately 4.3 miles away by car, providing convenient access to public transportation options for travelers.

Rome to Seattle Flights

The cheapest times to fly from Rome to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Rome to Seattle are during the month of May. You can find some of the cheapest flights from Rome to Seattle with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Rome to Seattle

Sunday is one of the best days to book for cheap flights from Rome to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Rome to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Rome to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $459 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Rome to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Rome to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.