HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southeast Europe

$222+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ATH
Oct 30 — Nov 61
Thu 10/30
Thu 11/6
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.

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 September 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$527
(FlightHub)

One-way from

$222
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$916
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. 28% potential increase in price ($356 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 30, 2025.

This FlightHub deal was found by Cheapflights users on 9/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:20 pmORD - SKG
1 stop28h 20mTurkish Airlines
Wed 12/39:45 pmSKG - ORD
1 stop20h 20mTurkish Airlines
Deal found 9/28$527
This oojo deal was found by Cheapflights users on 9/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:20 pmORD - ATH
1 stop15h 20mScandinavian Airlines
Fri 2/62:10 pmATH - ORD
1 stop34h 35mScandinavian Airlines
Deal found 9/29$532
This Ovago deal was found by Cheapflights users on 9/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:50 amORD - ATH
1 stop13h 10mTurkish Airlines
Tue 12/99:40 pmATH - ORD
1 stop20h 25mTurkish Airlines
Deal found 9/30$533
This Scandinavian Airlines deal was found by Cheapflights users on 9/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:20 pmORD - ATH
2 stops35h 00mScandinavian Airlines
Tue 11/189:10 pmATH - ORD
2 stops27h 35mScandinavian Airlines
Deal found 9/29$536
This Scandinavian Airlines deal was found by Cheapflights users on 9/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/297:20 pmORD - ATH
1 stop15h 20mScandinavian Airlines
Fri 12/52:10 pmATH - ORD
1 stop34h 35mScandinavian Airlines
Deal found 9/30$537
This FlightHub deal was found by Cheapflights users on 9/29. 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.
Sun 11/98:20 pmORD - SKG
1 stop28h 20mTurkish Airlines
Tue 11/259:30 amSKG - ORD
1 stop32h 35mTurkish Airlines
Deal found 9/29$537
This Ovago deal was found by Cheapflights users on 9/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:20 pmORD - ATH
1 stop16h 30mTurkish Airlines
Wed 12/39:40 pmATH - ORD
1 stop20h 25mTurkish Airlines
Deal found 9/28$538
This oojo deal was found by Cheapflights users on 9/30. 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 11/97:20 pmORD - ATH
1 stop15h 20mScandinavian Airlines
Sun 11/237:30 pmATH - ORD
1 stop29h 15mScandinavian Airlines
Deal found 9/30$539
This FlightHub deal was found by Cheapflights users on 9/29. 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 11/1311:50 amORD - ATH
1 stop13h 00mTurkish Airlines
Sun 11/169:40 pmATH - ORD
1 stop20h 25mTurkish Airlines
Deal found 9/29$540
This Gotogate deal was found by Cheapflights users on 9/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2011:45 pmORD - OTP
1 stop24h 25mTurkish Airlines
Tue 11/43:30 pmOTP - ORD
1 stop26h 35mTurkish Airlines
Deal found 9/28$540
This oojo deal was found by Cheapflights users on 9/28. 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.
Wed 11/267:20 pmORD - ATH
1 stop15h 20mScandinavian Airlines
Tue 12/29:10 pmATH - ORD
2 stops27h 35mScandinavian Airlines
Deal found 9/28$541
This Mytrip deal was found by Cheapflights users on 9/28. 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.
Wed 11/127:00 amORD - OTP
3 stops31h 25mMultiple Airlines
Wed 11/196:00 amOTP - ORD
2 stops18h 45mMultiple Airlines
Deal found 9/28$541

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 September 30, 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

ChicagoThessaloniki

ORD - SKG

ORDSKG

Chicago O'Hare Intl

Mon 11/17

11:50 am-8:55 pm

1 stop25h 05m

Thessaloniki Makedonia

Wed 12/3

9:30 am-10:05 am

1 stop32h 35m

$527

ChicagoThessaloniki

ORD - SKG

ORDSKG

Chicago O'Hare Intl

Sun 11/9

8:20 pm-8:40 am

1 stop28h 20m

Thessaloniki Makedonia

Tue 11/25

9:30 am-10:05 am

1 stop32h 35m

$537

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 10/20

11:45 pm-8:10 am

1 stop24h 25m

Bucharest Otopeni Intl

Tue 11/4

3:30 pm-10:05 am

1 stop26h 35m

$540

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 11/12

7:00 am-10:25 pm

3 stops31h 25m

Bucharest Otopeni Intl

Wed 11/19

6:00 am-4:45 pm

2 stops18h 45m

$541

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Sat 11/8

6:20 pm-6:40 pm

2 stops40h 20m

Athens Eleftherios V.

Wed 12/3

2:10 pm-9:46 pm

2 stops39h 36m

$554

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 1/1

4:20 pm-2:05 pm

1 stop13h 45m

Bucharest Otopeni Intl

Thu 1/15

6:30 am-4:20 pm

1 stop17h 50m

$557

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 10/30

7:50 pm-12:25 am

1 stop21h 35m

Bucharest Otopeni Intl

Thu 11/13

5:50 am-8:00 pm

2 stops22h 10m

$559

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 11/13

12:50 pm-2:05 pm

2 stops17h 15m

Bucharest Otopeni Intl

Fri 11/21

2:50 pm-8:05 pm

1 stop13h 15m

$562

ChicagoThessaloniki

ORD - SKG

ORDSKG

Chicago O'Hare Intl

Tue 11/25

6:50 pm-1:15 pm

1 stop34h 25m

Thessaloniki Makedonia

Thu 12/11

4:00 pm-2:00 pm

1 stop30h 00m

$563

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 12/8

5:10 pm-11:00 pm

1 stop21h 50m

Bucharest Otopeni Intl

Sat 1/10

8:05 am-6:45 pm

1 stop18h 40m

$566

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/28

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, November is the cheapest month in which you can book a flight from Illinois to Southeast Europe (average of $679). Flying from Illinois to Southeast Europe in June is currently the most expensive (average of $1,280). 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 September 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Southeast Europe as you normally would.

Weekly flight availability from Illinois to Southeast Europe

Explore weekly flight availability from Illinois to Southeast 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 September 30, 2025.

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

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?

    Turkish Airlines, Scandinavian Airlines, and United Airlines can get you from Illinois to Southeast Europe in just under 19h 55m. Your travel time can differ by up to 20h 25m. The distance from Illinois to Southeast Europe is about 5163 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 $354 on Air Serbia. Other airlines that offer cheap prices include Scandinavian Airlines from $410 and Delta from $478 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, November is the cheapest month in which you can book a flight from Illinois to Southeast Europe (average of $679). Flying from Illinois to Southeast Europe in June is currently the most expensive (average of $1,280). 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
John F Kennedy Intl to Charles de Gaulle flights
Newark to Heathrow flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
Newark to Orly flights
John F Kennedy Intl to Istanbul flights
Newark to Leonardo da Vinci/Fiumicino flights
Boston to Heathrow flights
Miami to Madrid flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to Orly flights
John F Kennedy Intl to Madrid flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Lisbon flights
Newark to Gatwick flights
Los Angeles to Heathrow flights
John F Kennedy Intl to Gatwick flights
Newark to Madrid flights
LaGuardia to Charles de Gaulle flights
Dallas/Fort Worth to Heathrow flights
John F Kennedy Intl to Malpensa flights
O'Hare Intl to Heathrow flights
San Francisco to Heathrow flights
O'Hare Intl to Istanbul flights
John F Kennedy Intl to Barcelona-El Prat flights
Hobby to Istanbul flights
Baltimore to Heathrow flights
O'Hare Intl to Charles de Gaulle flights
Newark to Lisbon flights
Boston to Charles de Gaulle flights
Newark to Barcelona-El Prat flights
Dulles Intl to Charles de Gaulle flights
Dulles Intl to Madrid flights
Newark to Malpensa flights
Los Angeles to Charles de Gaulle flights
LaGuardia to Gatwick flights
Newark to London City flights
Dallas/Fort Worth to Madrid flights
Newark to Frankfurt flights
Dallas/Fort Worth to Charles de Gaulle flights
John F Kennedy Intl to Amsterdam flights
John F Kennedy Intl to Luton flights
Seattle to Heathrow flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to Frankfurt flights
George Bush Intcntl to Istanbul flights
Dulles Intl to Istanbul flights
O'Hare 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 September 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$701FlexibilityNo cancel feeOn-time77%
Air SerbiaCheapest$436Average$912FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$449Average$898FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$463Average$788FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$480Average$1,081FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$484Average$779FlexibilityNo cancel feeOn-time72%
KLMCheapest$491Average$855FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$503Average$727FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$860FlexibilityNo cancel feeOn-time78%
LOTCheapest$520Average$891FlexibilityNo 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.