$428 Cheap Flights from Rome (FCO) to Philadelphia (PHL)

Popular airlines from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL)

Cheap Flights from Rome to Philadelphia (FCO-PHL)

Prices were available within the past 7 days and start at $428 for one-way flights and $574 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Aer Lingus
American Airlines
British Airways
Iberia
Air Canada
Lufthansa
United
Brussels Airlines
Austrian Airlines

Find the cheapest month to fly from Rome (FCO) to Philadelphia (PHL)

March is typically the cheapest month to fly

From $442 - $939 per traveler.

Graph displaying average flight prices per month

Flights from Rome (FCO) to Philadelphia (PHL)
Origin airport
Fiumicino - Leonardo da Vinci Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, United
Roundtrip price
$573
Distance
4359 mi
Average flight time
9 hours 50 mins

Rome to Philadelphia Flights

The cheapest times to fly from Rome to Philadelphia

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 Philadelphia are during the month of September. You can find some of the cheapest flights from Rome to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Rome to Philadelphia

Sunday is one of the best days to book for cheap flights from Rome to Philadelphia: 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 Philadelphia

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 Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $428 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 Philadelphia 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 Philadelphia 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.

 

Frequently asked questions

How much does a flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL) cost?
Cheap round-trip flights from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL) start from $686. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a British Airways flight leaving FCO on July 15 2025 and touching down at PHL. The price was last updated on July 8 2025 and has not changed since.
What is the cheapest month to fly from FCO to PHL?
The cheapest flights from FCO to PHL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from FCO to PHL?
With fares starting at $741 for a one-way flight from FCO to PHL, American Airlines is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from FCO on September 30 2025. Prices were last updated on July 8 2025 and have not changed since.
How many flights per day from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL)?
You'll have to take a flight with a layover when traveling from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from FCO to PHL?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from FCO to PHL?
British Airways has the strongest track record for on-time direct flights from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL), with an on-time rating of 87%. Use the Expedia App to check your flight schedule before you leave and get notified of any changes.
What is the best time to fly from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL)?
Opt for a flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your flight from FCO to PHL right before your getaway is usually more expensive. But if you're flexible with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a FCO to PHL flight and hotel package?
Compared with arranging flights and hotels separately, booking a FCO to PHL flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the stress out of travel planning. Simply secure your flights and select from our wide range of stays, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Philadelphia Intl. Airport (PHL)?
In most instances, you can cancel or reschedule your FCO to PHL flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, visit our Customer Service portal.

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*Available to One Key members.