For a quick departure from ORD, consider taking the 'L' train to avoid traffic delays common with taxis or rideshares.

Most accurate provider | eDreams 3 stars  | 
|---|---|
Most trusted provider | eDreams 3 stars  | 
Round-trip from | $408 (oojo)  | 
One-way from | $188 (Trip.com)  | 
Popular in | June | 
Cheapest in | February | 
Average price | $591 | 
Good round-trip deal | $761 or less | 
Good one-way deal | $481 or less | 
Fly from
Fly to
Route
Depart
Return
Price
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Thu 2/12
6:30 pm-2:00 pm
1 stop12h 30m
Rome Fiumicino
Sun 2/15
11:25 am-5:20 pm
1 stop12h 55m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Tue 3/17
2:36 pm-9:00 am
1 stop12h 24m
Rome Fiumicino
Fri 3/27
1:10 pm-10:48 pm
1 stop15h 38m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Wed 2/18
5:10 pm-2:55 pm
1 stop14h 45m
Rome Fiumicino
Tue 2/24
8:25 pm-1:50 pm
1 stop24h 25m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Mon 2/9
9:45 pm-4:55 pm
1 stop12h 10m
Rome Fiumicino
Mon 2/16
12:20 pm-1:50 pm
1 stop32h 30m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Sun 3/1
3:45 pm-7:45 am
Nonstop9h 00m
Rome Fiumicino
Wed 3/11
9:45 am-4:20 pm
1 stop12h 35m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Wed 12/3
3:45 pm-7:45 am
Nonstop9h 00m
Rome Fiumicino
Tue 12/9
7:05 am-3:20 pm
1 stop15h 15m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Wed 12/3
3:45 pm-7:45 am
Nonstop9h 00m
Rome Fiumicino
Wed 12/17
9:45 am-1:10 pm
Nonstop10h 25m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Sun 11/23
8:15 pm-11:05 am
1 stop31h 50m
Rome Fiumicino
Fri 12/5
9:45 am-1:10 pm
Nonstop10h 25m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Wed 3/4
9:50 pm-6:15 pm
1 stop13h 25m
Rome Fiumicino
Wed 3/11
9:45 am-2:10 pm
Nonstop10h 25m
ChicagoRome
ORD - FCO
ORDFCO
Chicago O'Hare Intl
Wed 3/11
7:00 pm-1:25 pm
1 stop12h 25m
Rome Fiumicino
Tue 3/17
9:45 am-2:10 pm
Nonstop10h 25m
| Provider | Price Accuracy | Trust Score* | 
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | 
The best time to book flights from Chicago to Rome Fiumicino Airport is 33 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, December is the cheapest month in which you can book a flight from Chicago to Rome Fiumicino Airport (average of $371). Flying from Chicago to Rome Fiumicino Airport in June is currently the most expensive (average of $722). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from Chicago to Rome Fiumicino Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 38% on airfare.
Travelers seeking maximum savings on their Chicago to Rome Fiumicino Airport flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from CHI to FCO are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).
Lisbon (LIS) – chosen by Cheapflights users on 31% of 1-stop itineraries from Chicago to Rome Fiumicino Airport on Cheapflights.
Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $431.
Flights via Dublin (DUB) have the shortest average one-way travel time for 1-stop routes: 11h 40m.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 05m.
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$338 | Average$489 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$390 | Average$748 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$392 | Average$561 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$415 | Average$900 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$416 | Average$714 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$428 | Average$501 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$458 | Average$791 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$481 | Average$774 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$506 | Average$892 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$740 | FlexibilityNo cancel fee | On-time75% |