$718 Cheap Aer Lingus flights Rome (FCO) to Washington (IAD)

View $718 flight on Tue, Nov 25, 2025Opens in a new window

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$718 Cheap Aer Lingus flights Rome (FCO) to Washington (IAD)

Prices were available within the past 7 days and start at $718 for one-way flights and $559 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Thu, Sep 25 - Tue, Sep 30
FCO
Rome
IAD
Washington
$559 Roundtrip, found 10 hours ago
$559
Roundtrip
found 10 hours ago
Select Aer Lingus flight, departing Thu, Sep 25 from Rome to Washington, returning Tue, Sep 30, priced at $559 found 10 hours ago
Flights from Rome (FCO) to Washington (IAD)
Origin airport
Fiumicino - Leonardo da Vinci Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, EGYPTAIR, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Popular airline
British Airways
Distance
4493 mi
Average flight time
3 hours 58 mins

Frequently asked questions

How much is an Aer Lingus flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Washington Dulles Intl. Airport (IAD)?
Finding cheap one-way Aer Lingus flights from FCO to IAD from $718 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $559 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from FCO to IAD with Aer Lingus?
Aer Lingus flights to Washington are often more affordable in the off-peak months of January and February. Whether you need a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Washington Dulles Intl. Airport (IAD) with Aer Lingus?
To grab cheap flights from FCO to IAD with Aer Lingus, start searching about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Aer Lingus fly nonstop from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Washington Dulles Intl. Airport (IAD)?
Use our "Nonstop" filter when searching for direct Aer Lingus flights from FCO to IAD. It's also a good way to compare other carriers offering the same direct trip.
What is the earliest Aer Lingus flight from FCO to IAD?
To find the earliest departure from FCO to IAD with Aer Lingus, sort your results by "Morning" and "Early Morning." Choosing an early flight generally means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Aer Lingus fly into in Washington?
Jump on an Aer Lingus flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Washington, and you're most likely to arrive at Washington Dulles Intl. Airport (IAD). This is the airline's main hub in this destination.
What kind of luggage can I take on an Aer Lingus flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Washington Dulles Intl. Airport (IAD)?
For checked luggage, passengers can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also bring 1 cabin bag on board when flying standard economy from FCO to IAD with Aer Lingus. This carry-on must weigh less than 22 lb and be no bigger than 21 inches x 15 inches x 9 inches. Going above these restrictions can mean extra charges, so check Aer Lingus's baggage allowance rules before you start packing.
Why fly with Aer Lingus from FCO to IAD?
Aer Lingus makes traveling from FCO to IAD more comfortable with a 4-star airline rating and a rewarding loyalty program. You even have the chance to collect points with Aer Lingus AerClub. Be sure to sign up to Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Aer Lingus flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Washington Dulles Intl. Airport (IAD)?
Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that time. For more details about modifying your flights, go to your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to change your itinerary without additional costs, tick the "Changes included" and "No cancel fee" filters when organizing your trip.

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