HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southeast Europe

$216+ Cheap flights from Illinois to Southeast 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ATH
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Southeast Europe with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Illinois to Southeast Europe

Cheapest flights from Illinois to Southeast Europe
Explore the most affordable flight options available from Illinois to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:15 pmORD - ATH
1 stop30h 05mMultiple Airlines
Mon 11/245:40 pmATH - ORD
1 stop30h 40mMultiple Airlines
Deal found 11/11$487
This oojo deal was found by Cheapflights users on 11/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:20 amORD - ATH
2 stops25h 15mITA Airways
Wed 11/196:00 amATH - ORD
2 stops20h 10mITA Airways
Deal found 11/11$488
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:51 amORD - ATH
2 stops19h 09mUnited Airlines
Thu 1/156:25 amATH - ORD
1 stop16h 55mUnited Airlines
Deal found 11/11$489
This Delta deal was found by Cheapflights users on 11/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 amORD - ATH
2 stops20h 25mDelta
Fri 1/236:05 amATH - ORD
1 stop16h 15mDelta
Deal found 11/12$490
This British Airways deal was found by Cheapflights users on 11/12. 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.
Tue 12/309:45 pmORD - ATH
1 stop19h 35mBritish Airways
Thu 1/222:25 pmATH - ORD
1 stop36h 20mBritish Airways
Deal found 11/12$491
This CheapOair deal was found by Cheapflights users on 11/12. 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.
Mon 12/13:55 pmORD - ATH
2 stops16h 45mMultiple Airlines
Wed 12/172:20 pmATH - ORD
1 stop13h 45mMultiple Airlines
Deal found 11/12$492
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/19:50 pmORD - ATH
1 stop19h 50mUnited Airlines
Fri 12/126:05 amATH - ORD
2 stops23h 52mUnited Airlines
Deal found 11/10$493
This Delta deal was found by Cheapflights users on 11/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:59 amMDW - ATH
2 stops15h 56mDelta
Tue 12/1612:50 pmATH - MDW
2 stops29h 04mDelta
Deal found 11/13$493
This American Airlines deal was found by Cheapflights users on 11/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:34 pmORD - ATH
2 stops17h 56mAmerican Airlines
Tue 12/27:55 pmATH - ORD
1 stop27h 30mAmerican Airlines
Deal found 11/12$494
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:21 pmORD - ATH
2 stops33h 39mUnited Airlines
Tue 1/206:25 amATH - ORD
1 stop14h 45mUnited Airlines
Deal found 11/12$495
This Delta deal was found by Cheapflights users on 11/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:15 pmORD - ATH
1 stop31h 40mDelta
Thu 1/226:05 amATH - ORD
2 stops23h 37mDelta
Deal found 11/12$496
This Delta deal was found by Cheapflights users on 11/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:41 amMDW - ATH
2 stops19h 54mDelta
Wed 11/1912:50 pmATH - MDW
2 stops18h 50mDelta
Deal found 11/11$497

Cheap flight deals from Illinois to Southeast Europe

Keep the following information in mind while searching for Illinois to Southeast Europe flight deals. Data was last updated November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$484
(Ovago)

One-way from

$216
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$588
Provider with most accurate pricing for Chicago (CHI)-Athens Eleftherios V. flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Athens Eleftherios V. flights.
Search Deals
From Illinois to Southeast Europe
Search Deals
One-way flight from Illinois to Southeast Europe
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($378 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Southeast 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 November 13, 2025.
Use the filters below to find and compare flights from Illinois to Southeast Europe that are best for you.

Fly from

Illinois

Fly to

Southeast Europe

Route

Depart

Return

Price

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Wed 1/14

1:00 pm-12:00 pm

2 stops15h 00m

Athens Eleftherios V.

Wed 1/21

6:15 am-2:55 pm

2 stops16h 40m

$489

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Mon 12/29

6:15 pm-9:55 am

1 stop31h 40m

Athens Eleftherios V.

Wed 1/21

6:05 am-2:20 pm

1 stop16h 15m

$491

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 12/30

9:45 pm-1:20 am

1 stop19h 35m

Athens Eleftherios V.

Thu 1/22

2:25 pm-6:45 pm

1 stop36h 20m

$491

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Mon 12/29

6:15 pm-9:55 am

1 stop31h 40m

Athens Eleftherios V.

Fri 1/23

6:05 am-2:20 pm

1 stop16h 15m

$491

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Sun 12/28

6:15 pm-9:55 am

1 stop31h 40m

Athens Eleftherios V.

Fri 1/23

6:05 am-2:20 pm

1 stop16h 15m

$491

ChicagoAthens

MDW - ATH

MDWATH

Chicago Midway

Tue 12/9

9:59 am-9:55 am

2 stops15h 56m

Athens Eleftherios V.

Tue 12/16

12:50 pm-9:54 am

2 stops29h 04m

$493

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Wed 11/26

8:55 am-4:35 pm

2 stops23h 40m

Athens Eleftherios V.

Tue 12/2

1:45 pm-2:20 pm

1 stop32h 35m

$495

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 12/30

9:15 pm-12:00 pm

2 stops30h 45m

Athens Eleftherios V.

Thu 1/22

6:25 am-6:15 pm

2 stops19h 50m

$499

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 12/2

3:55 pm-4:35 pm

2 stops16h 40m

Athens Eleftherios V.

Thu 12/11

6:25 am-8:05 pm

1 stop21h 40m

$502

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 12/9

11:00 am-1:35 pm

2 stops18h 35m

Athens Eleftherios V.

Mon 12/15

3:25 am-5:46 pm

2 stops22h 21m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Illinois to Southeast Europe

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

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

Currently, April is the cheapest month in which you can book a flight from Illinois to Southeast Europe (average of $333). Flying from Illinois to Southeast Europe in June is currently the most expensive (average of $687). 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 YMH?

Find hourly flight availability from Illinois to Southeast Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Southeast Europe in the evening. If you’re flexible enough to do this you can expect to save up to 43% on your trip compared to booking a flight at noon.

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

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

Travelers seeking maximum savings on their Illinois to Southeast Europe flight should consider departing on Friday at noon 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.

Related info for your journey

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

    United Airlines, Delta, and British Airways can get you from Illinois to Southeast Europe in just under 15h. Your travel time can differ by up to 16h 40m. The distance from Illinois to Southeast Europe is about 5446 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $333 on Air Serbia. Other airlines that offer cheap prices include Air Canada from $409 and Austrian Airlines from $427 one-way.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Illinois to Southeast Europe (average of $333). Flying from Illinois to Southeast Europe in June is currently the most expensive (average of $687). 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 Southeast Europe

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Istanbul flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
Newark to Orly flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Orly flights
Newark to Leonardo da Vinci/Fiumicino flights
Newark to Gatwick flights
Boston to Heathrow flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to Madrid flights
Dulles Intl to Heathrow flights
Los Angeles to Heathrow flights
Miami to Madrid flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
LaGuardia to Charles de Gaulle flights
Newark to Madrid flights
Los Angeles to Charles de Gaulle flights
John F Kennedy Intl to Malpensa flights
San Francisco to Heathrow flights
John F Kennedy Intl to Lisbon flights
John F Kennedy Intl to Barcelona-El Prat flights
John F Kennedy Intl to Luton flights
Boston to Charles de Gaulle flights
Newark to London City flights
O'Hare Intl to Heathrow flights
Newark to Barcelona-El Prat flights
Newark to Lisbon flights
Newark to Malpensa flights
Baltimore to Heathrow flights
John F Kennedy Intl to Dublin flights
Dallas/Fort Worth to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Newark to Dublin flights
O'Hare Intl to Charles de Gaulle flights
John F Kennedy Intl to Amsterdam flights
San Francisco to Charles de Gaulle flights
Newark to Frankfurt flights
Newark to Athens flights
Dallas/Fort Worth to Charles de Gaulle flights
Newark to Istanbul flights
Newark to Stansted flights
Seattle to Heathrow flights
Newark to Luton flights
Dulles Intl to Madrid flights

Top 10 airlines flying from Illinois to Southeast Europe

Discover the top 10 airlines that operate flights from Illinois to Southeast 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$706FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$424Average$779FlexibilityNo cancel feeOn-time72%
Air SerbiaCheapest$436Average$898FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$449Average$883FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$454Average$812FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$480Average$1,076FlexibilityNo cancel feeOn-time67%
KLMCheapest$491Average$850FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$503Average$736FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$909FlexibilityNo cancel feeOn-time78%
LOTCheapest$520Average$901FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.