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Cheap flights from Rome Fiumicino Airport to Washington, D.C. from $440

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Rome Fiumicino Airport to Washington, D.C. departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Rome Fiumicino Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
6:00 am - 3:15 pm
FCO
-
IAD
15h 15m1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 3:50 pm
IAD
-
FCO
16h 20m1 stop
$440TAP AIR PORTUGAL
Thu, Jan 22 - Thu, Jan 29
TAP AIR PORTUGAL Logo
4:40 pm - 3:15 pm
FCO
-
IAD
28h 35m1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 6:45 pm
IAD
-
FCO
14h 15m1 stop
$448TAP AIR PORTUGAL
Sun, Jan 25 - Sun, Feb 1
TAP AIR PORTUGAL Logo
4:40 pm - 9:00 pm
FCO
-
IAD
34h 20m1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 12:05 am
IAD
-
FCO
19h 35m1 stop
$462TAP AIR PORTUGAL
Sat, Jan 17 - Fri, Jan 30
TAP AIR PORTUGAL Logo
11:10 am - 8:35 pm
FCO
-
IAD
15h 25m1 stop
TAP AIR PORTUGAL Logo
10:35 pm - 12:15 am
IAD
-
FCO
19h 40m1 stop
$495TAP AIR PORTUGAL
Mon, Apr 20 - Sat, Apr 25
Icelandair Logo
11:25 am - 6:30 pm
FCO
-
IAD
13h 05m1 stop
Icelandair Logo
7:40 pm - 2:00 pm
IAD
-
FCO
12h 20m1 stop
$533Icelandair
Sat, Jan 24 - Sat, Jan 31
TAP AIR PORTUGAL Logo
6:00 am - 3:15 pm
FCO
-
IAD
15h 15m1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 12:05 am
IAD
-
FCO
24h 35m1 stop
$535TAP AIR PORTUGAL
Sat, Jan 24 - Sat, Jan 31
TAP AIR PORTUGAL Logo
7:35 pm - 2:35 pm
FCO
-
IAD
25h 00m1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 6:45 pm
IAD
-
FCO
19h 15m1 stop
$548TAP AIR PORTUGAL
Mon, Jan 12 - Mon, Jan 26
TAP AIR PORTUGAL Logo
6:00 am - 2:35 pm
FCO
-
IAD
14h 35m1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 12:05 am
IAD
-
FCO
19h 35m1 stop
$553TAP AIR PORTUGAL
Tue, Jan 20 - Fri, Jan 30
Multiple Airlines Logo
7:25 am - 9:00 pm
FCO
-
IAD
19h 35m2 stops
Multiple Airlines Logo
5:30 pm - 11:30 pm
IAD
-
FCO
24h 00m2 stops
$554Multiple Airlines
Fri, Jan 16 - Tue, Jan 20
TAP AIR PORTUGAL Logo
7:35 pm - 2:35 pm
FCO
-
IAD
25h 00m1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 11:25 am
IAD
-
FCO
30h 55m1 stop
$557TAP AIR PORTUGAL
Mon, Jan 19 - Sun, Feb 1

TAP AIR PORTUGAL flights from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport

Our best TAP AIR PORTUGAL deals on Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport flight tickets
TAP AIR PORTUGAL
Jan 22
FCO6:00 amRome Fiumicino
15h 15m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
Jan 29
IAD5:30 pmWashington, D.C. Dulles Intl
16h 20m
1 stop
FCO3:50 pmRome Fiumicino
$440
Find similar
TAP AIR PORTUGAL
Jan 25
FCO4:40 pmRome Fiumicino
28h 35m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
Feb 1
IAD10:30 pmWashington, D.C. Dulles Intl
14h 15m
1 stop
FCO6:45 pmRome Fiumicino
$448
Find similar
TAP AIR PORTUGAL
Jan 17
FCO4:40 pmRome Fiumicino
34h 20m
1 stop
IAD9:00 pmWashington, D.C. Dulles Intl
Jan 30
IAD10:30 pmWashington, D.C. Dulles Intl
19h 35m
1 stop
FCO12:05 amRome Fiumicino
$462
Find similar

Delta flights from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jan 19
FCO6:10 amRome Fiumicino
15h 55m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
Feb 1
IAD7:49 pmWashington, D.C. Dulles Intl
15h 36m
2 stops
FCO5:25 pmRome Fiumicino
$622
Find similar
Delta
Jan 25
FCO6:10 amRome Fiumicino
18h 59m
2 stops
IAD7:09 pmWashington, D.C. Dulles Intl
Feb 1
IAD12:23 pmWashington, D.C. Dulles Intl
14h 32m
2 stops
FCO8:55 amRome Fiumicino
$628
Find similar
Delta
Feb 11
FCO9:55 amRome Fiumicino
12h 40m
1 stop
IAD4:35 pmWashington, D.C. Dulles Intl
Mar 12
IAD7:50 pmWashington, D.C. Dulles Intl
14h 25m
1 stop
FCO3:15 pmRome Fiumicino
$629
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Thu 1/22

6:00 am-3:15 pm

1 stop15h 15m

Washington, D.C. Dulles Intl

Thu 1/29

5:30 pm-3:50 pm

1 stop16h 20m

$440

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Sun 1/25

4:40 pm-3:15 pm

1 stop28h 35m

Washington, D.C. Dulles Intl

Sun 2/1

10:30 pm-6:45 pm

1 stop14h 15m

$448

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Sat 1/17

4:40 pm-9:00 pm

1 stop34h 20m

Washington, D.C. Dulles Intl

Fri 1/30

10:30 pm-12:05 am

1 stop19h 35m

$462

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Mon 4/20

11:10 am-8:35 pm

1 stop15h 25m

Washington, D.C. Dulles Intl

Sat 4/25

10:35 pm-12:15 am

1 stop19h 40m

$495

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Sat 1/24

11:25 am-6:30 pm

1 stop13h 05m

Washington, D.C. Dulles Intl

Sat 1/31

7:40 pm-2:00 pm

1 stop12h 20m

$533

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Sat 1/24

6:00 am-3:15 pm

1 stop15h 15m

Washington, D.C. Dulles Intl

Sat 1/31

5:30 pm-12:05 am

1 stop24h 35m

$535

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Mon 1/12

7:35 pm-2:35 pm

1 stop25h 00m

Washington, D.C. Dulles Intl

Mon 1/26

5:30 pm-6:45 pm

1 stop19h 15m

$548

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Tue 1/20

6:00 am-2:35 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

Fri 1/30

10:30 pm-12:05 am

1 stop19h 35m

$553

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Fri 1/16

7:25 am-9:00 pm

2 stops19h 35m

Washington, D.C. Dulles Intl

Tue 1/20

5:30 pm-11:30 pm

2 stops24h 00m

$554

RomeWashington, D.C.

FCO - IAD

FCOIAD

Rome Fiumicino

Mon 1/19

7:35 pm-2:35 pm

1 stop25h 00m

Washington, D.C. Dulles Intl

Sun 2/1

10:30 pm-11:25 am

1 stop30h 55m

$557

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Rome Fiumicino Airport and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, February is the cheapest month to fly from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $558. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $622.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Saturday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $723. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport for around $954.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Rome Fiumicino Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $704 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $775 on average. Flights to Washington, D.C. Dulles Intl Airport from Rome Fiumicino Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Rome Fiumicino to Washington, D.C. Dulles Intl flight route?

Fly from Rome Fiumicino to Washington, D.C. Dulles Intl for the best Rome Fiumicino - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Rome Fiumicino Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $817 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Rome Fiumicino Airport for as low as $589 on momondo.

What cabin class options are available on Rome Fiumicino to Washington, D.C. Dulles Intl flights?

There are 3 cabin classes available to choose from on Rome Fiumicino to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of December 2025, prices for Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport flights are approximately 43% more expensive when compared to flights at the same time last year.

When to book flights from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport (FCO to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport

Best Price Found

$679

Fastest flight time

9h 45m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Rome Fiumicino Airport in the past 72 hours is $679. The best round-trip flight deal from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $724.
The fastest flight from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport takes 9h 45m
Direct flights go from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Rome Fiumicino to Washington, D.C. Dulles Intl by plane?

    The distance between Rome Fiumicino and Washington, D.C. Dulles Intl is about 4490.8 mi. A reasonable flight in good conditions will take 9h 45m.

  • When did momondo last update prices for flights from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $672Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

  • United Airlines Flights From Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport

    United Airlines is one of the most popular airlines flying from Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport, operating 10 flights/week on average for this route. A good United Airlines flight deal for Rome Fiumicino Airport to Washington, D.C. Dulles Intl Airport starts from $672 round-trip, up to an average price of $852. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Washington, D.C.?

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Why use momondo?

Why should I use momondo to find a flight deal from Rome to Washington, D.C.?

Finding the right flight to Washington, D.C. from Rome is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Rome to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Rome on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Rome to Washington, D.C.?

Once all potential Rome to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Rome to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Rome to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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