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$292+ Cheap flights from Illinois to Rome (ROM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ROM
dez 21 — dez 281
dom 12/21
dom 12/28
1 adult, Economy
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Find flight deals from Illinois to Rome

Cheapest flights from Illinois to Rome
Explore the most affordable flight options available from Illinois to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on novembro 21, 2025.

This oojo deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/288:15 pmORD - FCO
1 stop20h 50mTAP AIR PORTUGAL
sex 12/56:00 amFCO - ORD
1 stop16h 25mTAP AIR PORTUGAL
Deal found 11/20$410
This Booking.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/37:10 pmORD - FCO
1 stop16h 35mTAP AIR PORTUGAL
qua 12/106:00 amFCO - ORD
1 stop16h 00mTAP AIR PORTUGAL
Deal found 11/20$413
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/107:10 pmORD - FCO
1 stop33h 15mTAP AIR PORTUGAL
ter 12/234:40 pmFCO - ORD
1 stop29h 20mTAP AIR PORTUGAL
Deal found 11/19$414
This KAYAK deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/107:10 pmORD - FCO
1 stop21h 55mTAP AIR PORTUGAL
ter 12/167:35 pmFCO - ORD
1 stop26h 25mTAP AIR PORTUGAL
Deal found 11/19$418
This Kiwi.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 12/78:25 pmORD - FCO
1 stop32h 00mTAP AIR PORTUGAL
qua 12/176:00 amFCO - ORD
1 stop16h 00mTAP AIR PORTUGAL
Deal found 11/19$421
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/107:10 pmORD - FCO
1 stop21h 55mTAP AIR PORTUGAL
sex 1/96:00 amFCO - ORD
1 stop16h 25mTAP AIR PORTUGAL
Deal found 11/19$424
This KAYAK deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 12/66:30 pmORD - FCO
1 stop12h 30mIcelandair
qui 12/1111:25 amFCO - ORD
1 stop12h 55mIcelandair
Deal found 11/19$425
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/26:30 pmORD - FCO
1 stop12h 30mIcelandair
qua 12/1011:25 amFCO - ORD
1 stop12h 55mIcelandair
Deal found 11/19$429
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 12/58:15 pmORD - FCO
1 stop15h 30mTAP AIR PORTUGAL
dom 12/75:45 amFCO - ORD
1 stop16h 00mTAP AIR PORTUGAL
Deal found 11/19$430
This FlightHub deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/317:10 pmORD - FCO
1 stop21h 55mTAP AIR PORTUGAL
qui 1/87:35 pmFCO - ORD
1 stop26h 50mTAP AIR PORTUGAL
Deal found 11/19$437
This oojo deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/26:30 pmORD - FCO
1 stop12h 30mIcelandair
qui 12/1111:25 amFCO - ORD
1 stop12h 55mIcelandair
Deal found 11/18$444
This Gurufare deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/317:10 pmORD - FCO
1 stop21h 55mTAP AIR PORTUGAL
sex 1/96:00 amFCO - ORD
1 stop16h 25mTAP AIR PORTUGAL
Deal found 11/19$447

Cheap flight deals from Illinois to Rome

Keep the following information in mind while searching for Illinois to Rome flight deals. Data was last updated novembro 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$408
(CrystalTravel)

One-way from

$292
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$578

Good round-trip deal

$761 or less

Good one-way deal

$481 or less
Provider with most accurate pricing for Chicago (CHI)-Rome (ROM) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Rome (ROM) flights.
Search Deals
From Illinois to Rome (ROM)
Search Deals
One-way flight from Illinois to Rome (ROM)
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($234 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Rome (ROM).
Search Deals
Price to beat on a one-way flight from Illinois to Rome (ROM).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Rome that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated novembro 21, 2025.
Use the filters below to find and compare flights from Illinois to Rome that are best for you.

Fly from

Illinois

Fly to

Rome

Route

Depart

Return

Price

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

qua 1/14

9:57 am-1:25 pm

2 stops20h 28m

Rome Fiumicino

qua 1/21

11:15 am-7:27 pm

2 stops39h 12m

$491

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

ter 1/20

11:22 am-7:55 am

1 stop13h 33m

Rome Fiumicino

qua 1/28

7:05 am-1:55 pm

1 stop13h 50m

$493

PeoriaRome

PIA - FCO

PIAFCO

Greater Peoria

qua 2/4

10:45 am-7:55 am

2 stops14h 10m

Rome Fiumicino

dom 2/8

12:45 pm-9:39 pm

2 stops39h 54m

$494

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

qua 1/21

9:57 am-7:55 am

2 stops14h 58m

Rome Fiumicino

qua 1/28

7:05 am-1:55 pm

1 stop13h 50m

$498

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

ter 2/3

11:22 am-7:55 am

1 stop13h 33m

Rome Fiumicino

sex 2/13

9:45 am-9:00 pm

2 stops18h 15m

$503

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

ter 1/20

12:44 pm-8:30 am

1 stop12h 46m

Rome Fiumicino

ter 1/27

7:05 am-4:03 pm

2 stops15h 58m

$503

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

qua 1/21

11:22 am-7:55 am

1 stop13h 33m

Rome Fiumicino

ter 1/27

7:05 am-7:27 pm

2 stops19h 22m

$503

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

qua 1/28

11:22 am-7:55 am

1 stop13h 33m

Rome Fiumicino

dom 2/1

12:45 pm-3:29 pm

1 stop33h 44m

$503

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

qua 1/28

1:00 pm-10:30 am

1 stop14h 30m

Rome Fiumicino

dom 2/1

12:40 pm-11:04 am

1 stop29h 24m

$506

ChicagoRome

ORD - FCO

ORDFCO

Chicago O'Hare Intl

seg 1/26

12:30 pm-11:45 am

2 stops16h 15m

Rome Fiumicino

qui 2/19

12:45 pm-2:20 pm

1 stop32h 35m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Rome

Have a flexible travel schedule? Discover the best time to fly to Rome from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Rome

What is the cheapest month to book a flight from Illinois to Rome?

Currently, December is the cheapest month in which you can book a flight from Illinois to Rome (average of $359). Flying from Illinois to Rome in June is currently the most expensive (average of $718). 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.

What is the cheapest time of day to fly from IL to ROM?

Find hourly flight availability from Illinois to Rome. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated novembro 21, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from Illinois to Rome by exploring options for tickets in the evening.

What is the cheapest day to fly from Illinois to Rome?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Rome. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Rome flight should consider departing on Friday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Illinois to Rome

Explore weekly flight availability from Illinois to Rome. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated novembro 21, 2025.

The most flights from USIL to ROM are scheduled on a Monday (6 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost to fly round-trip from Illinois to Rome?

Related info for your journey

Find useful and relevant information for your journey from Illinois to Rome. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Rome?

    There are many flights that can get you from Illinois to Rome in 13h 33m. Fly via United Airlines, Lufthansa, or Delta to get the fastest option. The distance from Illinois to Rome is about 5050 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Illinois to Rome one-way?

    The cheapest airline one-way is SWISS, with whom users have recently found tickets for as low as $350. However, be on the lookout for offers from Delta and KLM, as they are both options that can get you from Illinois to Rome for a low price.

  • What are the most popular routes from Illinois to Rome?

    When deciding which route to take from Illinois to Rome consider Chicago O'Hare Intl - Rome Fiumicino, Chicago Midway - Rome Fiumicino or Chicago O'Hare Intl - Rome Ciampino as they are the most popular.

  • What are the most reliable airlines from Illinois to Rome?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Rome on time: SAUDIA (70%), Etihad Airways (70%), ITA Airways (70%).

  • What are the cheapest flights from Illinois to Rome?

    The cheapest flight price from Illinois to Rome is $398. On average you can expect to pay $1,674. The most popular route, (Chicago O'Hare Intl - Rome Fiumicino), can usually be booked for $333.

  • Can I find deals for flights from Illinois to Rome that include hotel bookings?

    Yes. In addition to deals on Illinois to Rome flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Rome?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Rome.

  • Can I find deals for business class flights from Illinois to Rome?

    Yes. Cheapflights offers flight deals from Illinois to Rome by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Rome?

    Currently, December is the cheapest month in which you can book a flight from Illinois to Rome (average of $359). Flying from Illinois to Rome in June is currently the most expensive (average of $718). 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.

See more FAQs

Traveling to a place near Rome?

Book flights to Rome if you plan to visit one of these locations
Fiumicino
Montepulciano
Santa Marinella

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Alternative routes for Illinois to Rome

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Rome

Discover the top 10 airlines that operate flights from Illinois to Rome. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated novembro 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$338Average$489FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$390Average$748FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$392Average$561FlexibilityNo cancel feeOn-time76%
IberiaCheapest$415Average$900FlexibilityNo cancel feeOn-time77%
SWISSCheapest$416Average$714FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$428Average$501FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$458Average$791FlexibilityNo cancel feeOn-time77%
DeltaCheapest$481Average$774FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$506Average$892FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$512Average$740FlexibilityNo cancel feeOn-time75%

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