Cheap flights from Washington, D.C. Dulles Intl Airport to Rome from $548

The cheapest month to fly to Rome from Washington, D.C. Dulles Intl Airport is in January. Flight prices, which tend to average around $137, are often lower during this time because this is during the off-season. If you aren’t able to travel to Rome during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $176.

The cheapest day to depart on your flight to Rome is on a Tuesday when prices can be found for as low as $809. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Rome on Wednesday is $1,008.

In the afternoon is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Rome when you can find flight prices for as low as $883. Flying to Rome in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Rome are more costly in the evening, with an average ticket price of $947. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Rome from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Rome for around $862 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rome from Washington, D.C. Dulles Intl Airport for as low as $719 on momondo.

United Airlines is the most popular carrier operating from Washington, D.C. Dulles Intl to Rome

ITA Airways, United Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to Rome from Washington, D.C. Dulles Intl Airport according to our data. ITA Airways is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Rome. Keep in mind that there are 14 different airlines that fly to Rome on a routine basis, so you have a few additional options to choose from.

Historically, on average around 31% of flights between Washington, D.C. and Rome have experienced a delay on any given week. The average delay length over the past 12 months has been 180 minutes.

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

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday 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 30% of their flights experiencing any sort of delay.

As of May 2026, 6 flights take off from Washington, D.C. Dulles Intl Airport and land in Rome each day. The most common flight departure time for this route is 5:00PM, with 100% of daily flights taking off in the afternoon.

As of May 2026, there are 45 flights per week flying from Washington, D.C. Dulles Intl Airport to Rome. The most common day of the week flights depart is Tue, with 16% of flights taking off on this day.