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$33+ Cheap flights from Illinois to Europe

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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CPH
Jul 11 — Jul 181
Sat 7/11
Sat 7/18
1 adult, Economy
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Cheap flight deals from Illinois to Europe

Cheapest flights from Illinois to Europe
Explore the most affordable flight options available from Illinois to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.

This KAYAK deal was found by Cheapflights users on 6/8. 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.
Tue 9/19:50 am
ORD
-
DUB
1 stop13h 20m
Aer Lingus
Tue 9/81:20 pm
DUB
-
ORD
1 stop25h 40m
Aer Lingus
Deal found 6/8$487
This KAYAK deal was found by Cheapflights users on 6/6. 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.
Thu 9/39:50 am
ORD
-
DUB
1 stop13h 20m
Aer Lingus
Sun 9/61:20 pm
DUB
-
ORD
1 stop30h 02m
Aer Lingus
Deal found 6/6$505
This KAYAK deal was found by Cheapflights users on 6/11. 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.
Tue 9/19:50 am
ORD
-
DUB
1 stop13h 20m
Aer Lingus
Wed 9/91:20 pm
DUB
-
ORD
1 stop12h 28m
Aer Lingus
Deal found 6/11$514
This KAYAK deal was found by Cheapflights users on 6/8. 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.
Tue 9/19:50 am
ORD
-
DUB
1 stop13h 20m
Aer Lingus
Sun 9/61:20 pm
DUB
-
ORD
1 stop12h 32m
Aer Lingus
Deal found 6/8$537
This KAYAK deal was found by Cheapflights users on 6/10. 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.
Thu 9/39:50 am
ORD
-
DUB
1 stop13h 20m
Aer Lingus
Sat 9/121:20 pm
DUB
-
ORD
1 stop25h 40m
Aer Lingus
Deal found 6/10$543
This KAYAK deal was found by Cheapflights users on 6/11. 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.
Tue 9/19:50 am
ORD
-
DUB
1 stop13h 20m
Aer Lingus
Mon 9/71:20 pm
DUB
-
ORD
1 stop25h 40m
Aer Lingus
Deal found 6/11$574
This KAYAK deal was found by Cheapflights users on 6/9. 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.
Wed 9/911:42 am
ORD
-
DUB
1 stop11h 28m
Aer Lingus
Wed 9/161:20 pm
DUB
-
ORD
1 stop12h 28m
Aer Lingus
Deal found 6/9$587
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Fri 9/1811:45 am
ORD
-
DUB
1 stop16h 15m
Multiple Airlines
Fri 9/2510:40 am
DUB
-
ORD
1 stop16h 55m
Multiple Airlines
Deal found 6/10$589
This Justfly.com deal was found by Cheapflights users on 6/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:15 pm
ORD
-
BCN
1 stop11h 25m
British Airways
Sat 8/2910:30 am
BCN
-
ORD
Nonstop9h 50m
British Airways
Deal found 6/10$786
This FlightHub deal was found by Cheapflights users on 6/9. 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.
Tue 9/297:00 pm
ORD
-
BCN
Nonstop8h 35m
British Airways
Sun 11/111:30 am
BCN
-
ORD
Nonstop9h 35m
British Airways
Deal found 6/9$787
This CheapOair deal was found by Cheapflights users on 6/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:25 pm
ORD
-
BCN
Nonstop8h 30m
British Airways
Wed 8/1910:30 am
BCN
-
ORD
Nonstop9h 50m
British Airways
Deal found 6/8$788
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:25 pm
ORD
-
BCN
Nonstop8h 30m
Multiple Airlines
Sun 8/2310:30 am
BCN
-
ORD
Nonstop9h 50m
Multiple Airlines
Deal found 6/10$789

Find flight deals from Illinois to Europe

Keep the following information in mind while searching for Illinois to Europe flight deals. Data was last updated June 11, 2026.

Round-trip from

$487
(KAYAK)

One-way from

$33
(Thrive Travel)

Popular in

June

Cheapest in

February

Average price

$1,451

Good round-trip deal

$706 or less

Good one-way deal

$375 or less
From Illinois to Europe
Search Deals
One-way flight from Illinois to Europe
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Europe.
Search Deals
Price to beat on a one-way flight from Illinois to Europe.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Europe 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 June 11, 2026.
Use the filters below to find and compare flights from Illinois to Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 9/6

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Tue 9/15

9:20 am-2:52 pm

1 stop11h 32m

$689

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 11/4

6:30 pm-8:10 am

Nonstop7h 40m

Dublin

Wed 11/11

9:00 am-2:56 pm

1 stop11h 56m

$689

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 9/8

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Tue 9/15

9:20 am-2:52 pm

1 stop11h 32m

$689

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 10/10

7:15 pm-6:25 pm

2 stops17h 10m

Dublin

Mon 10/19

7:50 pm-4:10 pm

2 stops26h 20m

$729

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 10/21

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Sun 11/8

5:10 am-8:05 pm

1 stop20h 55m

$739

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 7/27

1:30 pm-7:20 am

1 stop11h 50m

Dublin

Tue 8/4

9:50 am-8:05 pm

1 stop16h 15m

$749

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 8/3

3:40 pm-7:45 am

1 stop10h 05m

Dublin

Tue 8/11

9:50 am-10:16 am

1 stop30h 26m

$758

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 8/22

6:00 pm-7:55 am

1 stop31h 55m

Dublin

Sun 9/6

12:00 pm-5:41 pm

1 stop11h 41m

$767

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 8/3

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Mon 8/10

8:45 am-12:55 pm

1 stop34h 10m

$779

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Tue 9/22

8:10 pm-11:15 pm

1 stop20h 05m

Barcelona-El Prat

Sat 9/26

2:35 pm-9:40 am

1 stop26h 05m

$794

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Europe

Have a flexible travel schedule? Discover the best time to fly to Europe 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 Europe

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

Currently, February is the cheapest month in which you can book a flight from Illinois to Europe (average of $583). Flying from Illinois to Europe in June is currently the most expensive (average of $1,106). 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 EU?

Find hourly flight availability from Illinois to Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 11, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 58% on flights from Illinois to Europe by exploring options for tickets in the evening.

Weekly flight availability from Illinois to Europe

Explore weekly flight availability from Illinois to Europe. 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 June 11, 2026.

The most flights from USIL to EU0 are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How far ahead should I book a flight from Illinois to Europe?

The price you pay for your flight from Illinois to Europe may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Use this chart to determine the cheapest time to fly round-trip from Illinois to Europe. Price data was last updated on June 8, 2026.

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Europe. 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 Europe?

    Airlines like Aer Lingus, Turkish Airlines, and United Airlines fly from Illinois to Europe in about 13h 20m. The time it takes to get you to your destination can typically vary by up to 16h 20m. The distance from Illinois to Europe is about 3661 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Royal Jordanian. According to our data, you can fly for as low as $68. Users have also found prices from $126 and $135 on Ethiopian Air and JetBlue, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Europe 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 Europe?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Europe (average of $583). Flying from Illinois to Europe in June is currently the most expensive (average of $1,106). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Europe

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 Europe

Discover the top 10 airlines that operate flights from Illinois to Europe. 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 June 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$449FlexibilityNo cancel feeOn-time62%
FinnairCheapest$353Average$794FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$356Average$584FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$366Average$677FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$369Average$604FlexibilityNo cancel feeOn-time77%
DeltaCheapest$393Average$889FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$416Average$805FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$440Average$784FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$458Average$733FlexibilityNo cancel feeOn-time79%
LOTCheapest$462Average$1,064FlexibilityNo cancel feeOn-time81%

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