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$318+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CPH
May 28 — Jun 41
Thu 5/28
Thu 6/4
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 April 28, 2026.

This oojo deal was found by Cheapflights users on 4/24. 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.
Wed 10/288:00 pm
ORD
-
MAD
1 stop15h 10m
TAP AIR PORTUGAL
Wed 11/47:40 am
MAD
-
ORD
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 4/24$570
This oojo deal was found by Cheapflights users on 4/23. 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.
Sun 10/259:10 pm
ORD
-
MAD
1 stop17h 10m
TAP AIR PORTUGAL
Tue 11/39:10 pm
MAD
-
ORD
1 stop25h 20m
TAP AIR PORTUGAL
Deal found 4/23$571
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:40 pm
ORD
-
MAD
Nonstop8h 10m
Iberia
Wed 12/212:00 pm
MAD
-
ORD
Nonstop9h 55m
Iberia
Deal found 4/25$577
This Booking.com deal was found by Cheapflights users on 4/25. 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.
Wed 10/288:00 pm
ORD
-
MAD
1 stop33h 20m
TAP AIR PORTUGAL
Wed 11/187:40 am
MAD
-
ORD
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 4/25$579
This Super.com deal was found by Cheapflights users on 4/23. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 pm
ORD
-
MAD
1 stop11h 40m
TAP AIR PORTUGAL
Sun 11/17:40 am
MAD
-
ORD
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 4/23$582
This FlightHub deal was found by Cheapflights users on 4/26. 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.
Sun 11/88:10 pm
ORD
-
MAD
1 stop10h 55m
TAP AIR PORTUGAL
Tue 11/246:00 pm
MAD
-
ORD
1 stop28h 30m
TAP AIR PORTUGAL
Deal found 4/26$583
This FlightHub deal was found by Cheapflights users on 4/24. 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.
Wed 10/288:00 pm
ORD
-
MAD
1 stop12h 05m
TAP AIR PORTUGAL
Tue 11/109:10 pm
MAD
-
ORD
1 stop25h 20m
TAP AIR PORTUGAL
Deal found 4/24$588
This oojo deal was found by Cheapflights users on 4/24. 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.
Fri 12/48:10 pm
ORD
-
MAD
1 stop14h 00m
TAP AIR PORTUGAL
Fri 12/117:40 am
MAD
-
ORD
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 4/24$590
This oojo deal was found by Cheapflights users on 4/23. 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.
Sun 11/18:10 pm
ORD
-
MAD
1 stop20h 20m
TAP AIR PORTUGAL
Sat 11/146:00 pm
MAD
-
ORD
1 stop28h 30m
TAP AIR PORTUGAL
Deal found 4/23$591
This oojo deal was found by Cheapflights users on 4/23. 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.
Tue 11/37:20 pm
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Sun 11/157:05 pm
DUB
-
ORD
1 stop27h 40m
Scandinavian Airlines
Deal found 4/23$595
This oojo deal was found by Cheapflights users on 4/27. 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.
Fri 11/276:30 pm
ORD
-
BCN
1 stop12h 10m
Icelandair
Fri 12/1111:50 am
BCN
-
ORD
1 stop12h 30m
Icelandair
Deal found 4/27$598
This FlightHub deal was found by Cheapflights users on 4/24. 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 10/278:20 pm
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Sun 11/157:05 pm
DUB
-
ORD
1 stop27h 40m
Scandinavian Airlines
Deal found 4/24$601

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 April 28, 2026.

Round-trip from

$582
(Super.com)

One-way from

$318
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$896

Good round-trip deal

$708 or less

Good one-way deal

$387 or less
From Illinois to Europe
Search Deals
One-way flight from Illinois to Europe
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($202 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 28, 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

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Tue 10/13

9:40 pm-1:15 pm

Nonstop8h 35m

Barcelona-El Prat

Wed 10/21

3:15 pm-6:00 pm

Nonstop9h 45m

$700

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Tue 10/13

11:05 am-8:00 am

1 stop13h 55m

Barcelona-El Prat

Tue 10/20

3:15 pm-6:00 pm

Nonstop9h 45m

$703

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 9/2

9:50 am-8:15 am

1 stop16h 25m

Dublin

Thu 9/17

11:35 am-1:40 pm

Nonstop8h 05m

$705

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Sun 9/27

2:15 pm-9:20 am

1 stop12h 05m

Barcelona-El Prat

Wed 10/7

1:50 pm-7:55 pm

1 stop13h 05m

$712

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Fri 9/18

10:35 pm-8:15 pm

1 stop14h 40m

Barcelona-El Prat

Wed 9/30

10:30 am-1:20 pm

Nonstop9h 50m

$747

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 8/12

6:30 am-10:40 am

1 stop22h 10m

Dublin

Wed 8/19

9:20 am-9:00 am

1 stop29h 40m

$752

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 9/29

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Wed 10/7

9:50 am-7:53 pm

1 stop16h 03m

$752
Quickest round-trip

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 8/23

10:30 pm-11:50 am

Nonstop7h 20m

Dublin

Wed 9/2

9:30 am-11:30 am

Nonstop8h 00m

$763

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Thu 8/6

5:10 pm-5:10 pm

1 stop17h 00m

Barcelona-El Prat

Thu 8/27

9:20 am-8:24 pm

2 stops18h 04m

$799

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Sat 8/22

6:05 pm-9:50 pm

1 stop20h 45m

Barcelona-El Prat

Sat 8/29

10:40 pm-4:00 pm

1 stop24h 20m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

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 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $579). Flying from Illinois to Europe in June is currently the most expensive (average of $1,053). 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 April 28, 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.

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 April 25, 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 United Airlines, Finnair, and Delta fly from Illinois to Europe in about 7h 20m. The time it takes to get you to your destination is usually consistent. The distance from Illinois to Europe is about 3661 mi. All flights are typically nonstop.

  • 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 $130 on Ethiopian Air and Iberia, 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 $579). Flying from Illinois to Europe in June is currently the most expensive (average of $1,053). 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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$522FlexibilityNo cancel feeOn-time62%
DeltaCheapest$137Average$815FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$300Average$711FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$321Average$589FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$352Average$976FlexibilityNo cancel feeOn-time76%
FinnairCheapest$353Average$793FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$356Average$585FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$366Average$680FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$401Average$648FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$440Average$766FlexibilityNo cancel feeOn-timeN/A

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