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$259+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CPH
Jul 2 — Jul 91
Thu 7/2
Thu 7/9
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 2, 2026.

This KAYAK deal was found by Cheapflights users on 5/30. 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.
Mon 11/21:15 pm
ORD
-
DUB
1 stop9h 55m
Aer Lingus
Mon 11/91:00 pm
DUB
-
ORD
1 stop12h 20m
Aer Lingus
Deal found 5/30$535
This KAYAK deal was found by Cheapflights users on 5/29. 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.
Fri 9/49:45 am
ORD
-
DUB
1 stop13h 25m
Aer Lingus
Fri 9/111:20 pm
DUB
-
ORD
1 stop25h 40m
Aer Lingus
Deal found 5/29$578
This KAYAK deal was found by Cheapflights users on 5/31. 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.
Fri 9/49:45 am
ORD
-
DUB
1 stop13h 25m
Aer Lingus
Sat 9/121:20 pm
DUB
-
ORD
1 stop12h 28m
Aer Lingus
Deal found 5/31$580
This FlightHub deal was found by Cheapflights users on 5/31. 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 11/17:15 pm
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Tue 11/1712:30 pm
DUB
-
ORD
1 stop34h 15m
Scandinavian Airlines
Deal found 5/31$602
This FlightHub deal was found by Cheapflights users on 5/29. 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.
Thu 12/247:15 pm
ORD
-
DUB
2 stops32h 05m
Scandinavian Airlines
Wed 12/3012:30 pm
DUB
-
ORD
1 stop34h 15m
Scandinavian Airlines
Deal found 5/29$604
This Gotogate deal was found by Cheapflights users on 5/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:30 pm
ORD
-
DUB
1 stop9h 45m
Icelandair
Sun 11/1511:30 am
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 5/30$607
This Trip.com deal was found by Cheapflights users on 6/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:15 pm
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Wed 12/97:05 pm
DUB
-
ORD
1 stop27h 40m
Scandinavian Airlines
Deal found 6/2$613
This oojo deal was found by Cheapflights users on 6/1. 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 9/21:54 pm
ORD
-
DUB
1 stop12h 31m
Aer Lingus
Thu 9/101:20 pm
DUB
-
ORD
1 stop12h 10m
Aer Lingus
Deal found 6/1$614
This oojo deal was found by Cheapflights users on 5/30. 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 9/67:15 pm
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Wed 12/237:05 pm
DUB
-
ORD
1 stop27h 40m
Scandinavian Airlines
Deal found 5/30$618
This Mytrip deal was found by Cheapflights users on 5/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:40 pm
ORD
-
DUB
2 stops29h 40m
Multiple Airlines
Mon 8/319:40 am
DUB
-
ORD
2 stops29h 20m
Multiple Airlines
Deal found 5/28$621
This oojo deal was found by Cheapflights users on 5/28. 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 10/258:00 am
ORD
-
DUB
1 stop16h 10m
Aer Lingus
Wed 11/42:00 pm
DUB
-
ORD
1 stop23h 15m
Aer Lingus
Deal found 5/28$622
This oojo deal was found by Cheapflights users on 6/2. 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 11/116:30 pm
ORD
-
DUB
1 stop9h 45m
Icelandair
Wed 11/1811:30 am
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 6/2$623

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 2, 2026.

Round-trip from

$535
(KAYAK)

One-way from

$259
(KAYAK)

Popular in

June

Cheapest in

February

Average price

$1,385

Good round-trip deal

$743 or less

Good one-way deal

$398 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 ($225 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 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 2, 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

Wed 10/28

11:10 am-7:45 am

1 stop15h 35m

Dublin

Wed 11/4

8:50 am-8:20 pm

2 stops17h 30m

$704

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 11/11

11:10 am-7:45 am

1 stop14h 35m

Dublin

Wed 11/18

5:45 am-6:40 pm

2 stops18h 55m

$704

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 9/18

7:15 pm-6:20 pm

1 stop17h 05m

Dublin

Tue 9/29

11:40 am-4:10 pm

2 stops34h 30m

$723

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 9/22

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Wed 10/7

9:50 am-8:06 pm

1 stop16h 16m

$751

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 9/16

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Thu 9/24

9:20 am-2:52 pm

1 stop11h 32m

$755
Quickest round-trip

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 8/18

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

Wed 8/26

11:35 am-1:40 pm

Nonstop8h 05m

$763

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 8/16

7:15 pm-10:10 am

2 stops32h 55m

Dublin

Sun 8/23

7:15 pm-4:10 pm

2 stops26h 55m

$767

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 9/3

7:15 pm-7:05 pm

2 stops17h 50m

Dublin

Sun 9/20

7:15 pm-4:10 pm

2 stops26h 55m

$770

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 10/12

11:25 am-4:00 pm

1 stop22h 35m

Dublin

Mon 10/26

4:35 pm-11:00 am

1 stop23h 25m

$778

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Sat 8/8

5:35 pm-9:20 am

1 stop32h 45m

Barcelona-El Prat

Sat 8/22

3:15 pm-5:55 pm

Nonstop9h 40m

$798

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/28

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 $1,100). 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 2, 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 2, 2026.

The most flights from USIL to EU0 are scheduled on a Friday (4 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 May 30, 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 Scandinavian Airlines, United Airlines, and Delta fly from Illinois to Europe in about 12h 09m. The time it takes to get you to your destination can typically vary by up to 4h 56m. 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 $1,100). 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

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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 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$449FlexibilityNo cancel feeOn-time62%
SWISSCheapest$300Average$722FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$321Average$603FlexibilityNo cancel feeOn-time77%
FinnairCheapest$353Average$797FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$356Average$588FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$366Average$679FlexibilityNo cancel feeOn-time67%
DeltaCheapest$393Average$888FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$440Average$787FlexibilityNo cancel feeOn-timeN/A
LOTCheapest$462Average$1,064FlexibilityNo cancel feeOn-time81%
Air FranceCheapest$470Average$740FlexibilityNo cancel feeOn-time77%

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