Cheap flights from Rome Fiumicino Airport to Washington, D.C. from $360

The month of May is, on average, the cheapest month to fly to Washington, D.C. from Rome Fiumicino Airport, with most prices found around $640. If you’re not able to fly to Washington, D.C. in May, then November is your next best option. Flight prices from Rome Fiumicino Airport to Washington, D.C. during November average around $675.

On average, the least expensive day to fly to Washington, D.C. from Rome Fiumicino Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $737. However, this price may fluctuate depending on the airline, the season, and holidays. 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. for around $993.

In the morning is the cheapest time of day to fly from Rome Fiumicino Airport to Washington, D.C. when you can find flight prices for as low as $856. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $1,002. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

You could potentially save up to 3% on your flight if you consider stops on a Rome Fiumicino Airport to Washington, D.C. flight.

KLM, Delta, and British Airways are the most popular carriers operating from Rome Fiumicino to Washington, D.C.

United Airlines, Icelandair and ITA Airways are the top three most popular airlines that fly to Washington, D.C. from Rome Fiumicino Airport according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 3 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Rome and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 161 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

As of September 2026, 10 flights take off from Rome Fiumicino Airport and land in Washington, D.C. each day. The most common flight departure time for this route is 10:00AM, with 60% of daily flights taking off at noon.

As of September 2026, 75 flights take off from Rome Fiumicino Airport and land in Washington, D.C. each week. The most common flight departure day for this route is Thu, with 17% of weekly flights taking off on this day.