Cheap flights from Rome Fiumicino Airport to Chicago from $501

The month of November is, on average, the cheapest month to fly to Chicago from Rome Fiumicino Airport, with most prices found around $637. If you’re not able to fly to Chicago in November, then September is your next best option. Flight prices from Rome Fiumicino Airport to Chicago during September average around $691.

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $749. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Rome Fiumicino Airport to Chicago for around $1,070.

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

You are more likely to see cheaper flights to Chicago from Rome Fiumicino Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $786 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Rome Fiumicino Airport for as low as $596 on momondo.

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

As of September 2026, prices for Rome Fiumicino Airport to Chicago flights are approximately 82% more expensive when compared to flights at the same time last year.

TAP AIR PORTUGAL and Delta are the most popular carriers operating from Rome Fiumicino to Chicago

United Airlines, American Airlines and ITA Airways are the top three most popular airlines that fly to Chicago 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 Chicago. Keep in mind that there are 3 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between Rome and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 175 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

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

According to our data, Ethiopian Air have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

10 flights are operational daily from Rome Fiumicino Airport to Chicago as of September 2026. The most popular departure time for this route is 9:00AM, with 92% of flights per day taking off at noon.

The number of flights available between Rome Fiumicino Airport and Chicago is 70 per week as of September 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.