Cheap flights from Chicago O'Hare Intl Airport to Rome from $315

The cheapest month to fly to Rome Fiumicino Airport from Chicago O'Hare Intl Airport is in November. Flight prices, which tend to average around $565, are often lower during this time because this is during the off-season. If you aren’t able to travel to Rome Fiumicino Airport during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $589.

Our data shows that Monday is the least expensive day to fly to Rome Fiumicino Airport. Tickets to fly out on this day can be as low as $893. The most expensive day to fly to Rome Fiumicino Airport is Thursday, with ticket prices averaging around $1,003.

Fly from Chicago O'Hare Intl to Rome Fiumicino for the best Chicago O'Hare Intl - Rome Fiumicino flight prices

You are more likely to see cheaper flights to Rome Fiumicino Airport from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Rome Fiumicino Airport for around $778 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rome Fiumicino Airport from Chicago O'Hare Intl Airport for as low as $747 on momondo.

There are 3 cabin classes available to choose from on Chicago O'Hare Intl to Rome Fiumicino flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Rome Fiumicino Airport.

United Airlines and Air Canada are the most popular carriers operating from Chicago O'Hare Intl to Rome Fiumicino

United Airlines, ITA Airways and American Airlines are the top three most popular airlines that fly to Rome Fiumicino Airport from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Rome Fiumicino Airport. Keep in mind that there are 17 different airlines that fly to Rome Fiumicino Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 30% of flights between Chicago and Rome have experienced a delay on any given week. The average delay length over the past 12 months has been 162 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening 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. Sunday 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.

Reykjavik (KEF) was the most common stop: 41% of momondo users choosing 1-stop flights on this route connected there.

Flights via Lisbon (LIS) offer the lowest average round-trip price of $436.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 11h 20m.

Reykjavik (KEF) has the shortest average layover time for this route: 1h 16m.

As of March 2026, 5 flights take off from Chicago O'Hare Intl Airport and land in Rome Fiumicino Airport each day. The most common flight departure time for this route is 3:00PM, with 100% of daily flights taking off in the afternoon.

As of March 2026, there are 39 flights per week flying from Chicago O'Hare Intl Airport to Rome Fiumicino Airport. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.