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Southeast Europe

$235+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ATH
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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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 June 18, 2025.

Round-trip from

$636
(United Airlines)

One-way from

$235
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$1,413
From Illinois to Southeast Europe
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One-way flight from Illinois to Southeast Europe
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Highest demand for flights based on searches. 27% potential increase in price ($330 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 18, 2025.

This United Airlines deal was found by Cheapflights users on 6/17. 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.
Thu 7/246:25 pmORD - OTP
1 stop21h 15mUnited Airlines
Mon 8/1812:55 pmOTP - ORD
2 stops30h 30mUnited Airlines
Deal found 6/17$636
This FlightHub deal was found by Cheapflights users on 6/17. 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 8/67:00 amORD - OTP
2 stops30h 05mScandinavian Airlines
Wed 8/208:50 pmOTP - ORD
1 stop27h 20mScandinavian Airlines
Deal found 6/17$637
This Gotogate deal was found by Cheapflights users on 6/17. 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.
Wed 10/1510:40 amORD - OTP
2 stops20h 40mMultiple Airlines
Wed 10/295:55 amOTP - ORD
2 stops21h 30mMultiple Airlines
Deal found 6/17$641
This FlightHub deal was found by Cheapflights users on 6/17. 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 8/245:10 pmORD - OTP
2 stops22h 00mLOT
Sun 9/75:35 amOTP - ORD
1 stop14h 30mLOT
Deal found 6/17$643
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1410:30 pmORD - SOF
2 stops16h 30mLufthansa
Tue 9/26:35 pmSOF - ORD
2 stops25h 55mLufthansa
Deal found 6/18$652
This Justfly.com deal was found by Cheapflights users on 6/18. 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.
Thu 7/3110:30 pmORD - SOF
2 stops16h 30mMultiple Airlines
Sat 10/46:15 amSOF - ORD
2 stops21h 56mMultiple Airlines
Deal found 6/18$656
This Austrian Airlines deal was found by Cheapflights users on 6/17. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/84:20 pmORD - SOF
1 stop17h 50mAustrian Airlines
Sun 9/712:25 pmSOF - ORD
2 stops38h 00mAustrian Airlines
Deal found 6/17$657
This Air Canada deal was found by Cheapflights users on 6/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/129:14 pmORD - SOF
2 stops54h 46mAir Canada
Thu 10/26:15 amSOF - ORD
2 stops16h 40mAir Canada
Deal found 6/17$658
This Gotogate deal was found by Cheapflights users on 6/16. 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.
Sun 8/108:40 amORD - OTP
2 stops20h 35mAir Canada
Sun 8/246:05 amOTP - ORD
2 stops35h 47mAir Canada
Deal found 6/16$659
This SWISS deal was found by Cheapflights users on 6/16. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/107:05 pmORD - SOF
2 stops32h 55mSWISS
Sun 9/712:45 pmSOF - ORD
2 stops35h 10mSWISS
Deal found 6/16$660
This Justfly.com deal was found by Cheapflights users on 6/18. 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 7/297:15 pmORD - SJJ
1 stop30h 35mScandinavian Airlines
Tue 10/287:30 pmSJJ - ORD
1 stop28h 15mScandinavian Airlines
Deal found 6/18$665
This Air France deal was found by Cheapflights users on 6/18. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1111:15 amORD - SOF
2 stops18h 45mAir France
Mon 9/87:00 amSOF - ORD
2 stops18h 37mAir France
Deal found 6/18$665

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 June 18, 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

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/6

11:45 pm-8:10 am

1 stop24h 25m

Bucharest Otopeni Intl

Wed 9/3

9:30 am-9:40 am

1 stop32h 10m

$633

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/6

10:31 am-9:05 pm

2 stops26h 34m

Bucharest Otopeni Intl

Wed 9/3

8:35 pm-9:56 pm

2 stops33h 21m

$635

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 7/24

6:25 pm-11:40 pm

1 stop21h 15m

Bucharest Otopeni Intl

Mon 8/18

12:55 pm-11:25 am

2 stops30h 30m

$636

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 9/10

9:40 pm-1:50 pm

1 stop32h 10m

Bucharest Otopeni Intl

Tue 9/16

8:20 am-3:10 pm

2 stops38h 50m

$646

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 7/14

10:30 pm-11:00 pm

2 stops16h 30m

Sofia

Tue 9/2

6:35 pm-12:30 pm

2 stops25h 55m

$652

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 7/31

10:30 pm-11:00 pm

2 stops16h 30m

Sofia

Sat 10/4

6:15 am-8:11 pm

2 stops21h 56m

$656

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 8/8

4:20 pm-6:10 pm

1 stop17h 50m

Sofia

Sun 9/7

4:05 pm-6:25 pm

2 stops34h 20m

$657

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 7/12

9:14 pm-12:00 pm

2 stops54h 46m

Sofia

Thu 10/2

6:15 am-2:55 pm

2 stops16h 40m

$658

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/10

8:40 am-1:15 pm

2 stops20h 35m

Bucharest Otopeni Intl

Sun 8/24

6:05 am-9:52 am

2 stops35h 47m

$659

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 8/10

7:05 pm-12:00 pm

2 stops32h 55m

Sofia

Sun 9/7

12:45 pm-3:55 pm

2 stops35h 10m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 60 results
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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 $1,289). 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 June 18, 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 June 18, 2025.

The most flights from USIL to zzYMH are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Southeast Europe by month

Plan your trip to Southeast Europe by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Europe ranges from 0.2 - 2.5 inches per month. December is typically the wettest month, when rainfall can reach 2.5 in. June is typically the driest time to visit Southeast Europe when rainfall is around 0.2 in.

Temperature in Southeast Europe by month

Plan your trip to Southeast Europe by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southeast Europe, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Southeast Europe

Get insights into the airlines that provide service to Southeast Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Europe. Reviews last updated June 18, 2025.
Read through reviews of airlines operating flights from Illinois to Southeast Europe, such as Emirates, Delta and KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,273 reviews

Comfort

8.0

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,273 reviews
Emirates
8.1
Very good
3,273 reviews

Comfort

8.0

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Delta
8.0
Very good
7,964 reviews
Emirates
8.1
Very good
3,273 reviews

Comfort

8.0

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
KLM
7.8
Good
1,363 reviews
Emirates
8.1
Very good
3,273 reviews

Comfort

8.0

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
LOT
7.6
Good
1,081 reviews
Emirates
8.1
Very good
3,273 reviews

Comfort

8.0

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Austrian Airlines
7.6
Good
804 reviews
Emirates
8.1
Very good
3,273 reviews

Comfort

8.0

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

  • 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 $317 on Turkish Airlines. Other airlines that offer cheap prices include British Airways from $326 and ITA Airways from $333 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 $1,289). 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

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Alternative routes for Illinois to Southeast 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 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$410Average$802FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$424Average$756FlexibilityNo cancel feeOn-time72%
Air SerbiaCheapest$436Average$942FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$449Average$951FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$463Average$727FlexibilityNo cancel feeOn-time77%
SWISSCheapest$467Average$954FlexibilityNo cancel feeOn-time79%
KLMCheapest$491Average$801FlexibilityNo cancel feeOn-time75%
LOTCheapest$530Average$857FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$556Average$895FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$557Average$1,002FlexibilityNo cancel feeOn-time70%

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