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$312+ Cheap flights from Athens (ATH) to Illinois

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — ORD
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Athens to Illinois

Cheapest flights from Athens to Illinois
Explore the most affordable flight options available from Athens to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

This FlightHub deal was found by Cheapflights users on 12/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/281:50 pmATH - ORD
1 stop14h 10mLOT
Wed 1/149:55 pmORD - ATH
1 stop13h 10mLOT
Deal found 12/27$745
This Kiwi.com deal was found by Cheapflights users on 12/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/281:50 pmATH - ORD
1 stop14h 10mLOT
Fri 1/169:55 pmORD - ATH
1 stop13h 10mLOT
Deal found 12/27$757
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/281:50 pmATH - ORD
1 stop14h 10mLOT
Fri 1/99:55 pmORD - ATH
1 stop13h 10mLOT
Deal found 12/26$802
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:25 amATH - ORD
1 stop16h 55mUnited Airlines
Mon 1/121:00 pmORD - ATH
2 stops15h 00mUnited Airlines
Deal found 12/26$808
This United Airlines deal was found by Cheapflights users on 12/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:35 amATH - ORD
2 stops25h 09mUnited Airlines
Fri 1/166:50 pmORD - ATH
1 stop34h 05mUnited Airlines
Deal found 12/27$823
This United Airlines deal was found by Cheapflights users on 12/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:35 amATH - ORD
2 stops25h 09mUnited Airlines
Sun 1/111:00 pmORD - ATH
2 stops15h 00mUnited Airlines
Deal found 12/27$827
This oojo deal was found by Cheapflights users on 12/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:50 pmATH - ORD
1 stop14h 10mLOT
Mon 1/129:55 pmORD - ATH
1 stop30h 55mLOT
Deal found 12/26$833
This KLM deal was found by Cheapflights users on 12/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 amATH - MDW
2 stops19h 21mMultiple Airlines
Mon 1/121:49 pmMDW - ATH
2 stops15h 46mMultiple Airlines
Deal found 12/26$1,158

Find flight deals from Athens to Illinois

Keep the following information in mind while searching for Athens to Illinois flight deals. Data was last updated December 28, 2025.

Round-trip from

$607
(Delta)

One-way from

$312
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$767

Good round-trip deal

$628 or less

Good one-way deal

$492 or less
From Athens Eleftherios V. to Illinois
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One-way flight from Athens Eleftherios V. to Illinois
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Highest demand for flights based on searches. 0% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Athens Eleftherios V. to Illinois.
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Price to beat on a one-way flight from Athens Eleftherios V. to Illinois.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Athens to Illinois 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 December 28, 2025.
Use the filters below to find and compare flights from Athens to Illinois that are best for you.

Fly from

Athens

Fly to

Illinois

Route

Depart

Return

Price

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Fri 2/20

6:05 am-4:51 pm

2 stops18h 46m

Chicago O'Hare Intl

Wed 4/8

10:40 am-1:40 pm

2 stops19h 00m

$606

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 3/26

6:05 am-4:43 pm

2 stops17h 38m

Chicago O'Hare Intl

Fri 4/3

5:10 pm-1:40 pm

1 stop12h 30m

$607

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 3/26

6:05 am-4:43 pm

2 stops17h 38m

Chicago O'Hare Intl

Fri 4/3

2:10 pm-4:30 pm

2 stops18h 20m

$611

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 5/21

7:15 am-6:50 pm

1 stop19h 35m

Chicago O'Hare Intl

Wed 6/10

5:05 pm-11:10 am

Nonstop10h 05m

$622

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Mon 1/19

6:25 am-3:20 pm

1 stop16h 55m

Chicago O'Hare Intl

Mon 10/19

7:05 pm-3:45 pm

1 stop12h 40m

$632

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sun 4/12

7:30 pm-4:10 pm

1 stop28h 40m

Chicago O'Hare Intl

Sat 4/18

7:15 pm-1:10 pm

1 stop33h 55m

$634

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sun 1/18

6:15 am-3:20 pm

1 stop17h 05m

Chicago O'Hare Intl

Thu 10/22

3:35 pm-11:55 am

1 stop12h 20m

$635

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Mon 1/19

6:25 am-3:20 pm

1 stop16h 55m

Chicago O'Hare Intl

Tue 2/10

10:52 am-12:00 pm

2 stops17h 08m

$635

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sat 1/17

6:30 am-3:20 pm

1 stop16h 50m

Chicago O'Hare Intl

Sat 10/17

3:35 pm-2:55 pm

1 stop15h 20m

$635

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sat 1/17

6:30 am-3:20 pm

1 stop16h 50m

Chicago O'Hare Intl

Thu 10/22

3:35 pm-11:55 am

1 stop12h 20m

$635

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 39 results
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Best time to book a flight from Athens to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Athens 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 Athens to Illinois

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

Currently, February is the cheapest month in which you can book a flight from Athens to Illinois (average of $470). Flying from Athens to Illinois in December is currently the most expensive (average of $589). 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.

How much does it cost to fly round-trip from Athens to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 28, 2025.
See what other customers who have flown with United Airlines, American Airlines, and Iberia from Athens to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,114 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,114 reviews
United Airlines
7.4
Good
9,114 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,071 reviews
United Airlines
7.4
Good
9,114 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Iberia
7.0
Good
3,059 reviews
United Airlines
7.4
Good
9,114 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Lufthansa
6.8
Okay
7,658 reviews
United Airlines
7.4
Good
9,114 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
British Airways
6.7
Okay
7,616 reviews
United Airlines
7.4
Good
9,114 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Athens to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Athens to Illinois?

    Located just 12.3 mi from the city center, Athens Eleftherios V. (ATH) is the airport most travelers will use when flying to Illinois from Athens.

  • How long is the flight from Athens to Illinois?

    For as low as $606, Delta can have you in Illinois from Athens in 18h 46m. The distance between Athens and Illinois is about 5446 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $290 on Air Serbia. Other airlines that offer cheap prices include Turkish Airlines from $302 and American Airlines from $359 one-way.

  • What are the most reliable airlines from Athens to Illinois?

    The top 3 most reliable airlines when flying from Athens to Illinois are American Airlines (90%), Alaska Airlines (90%) and Finnair (90%).

  • What are the cheapest flights from Athens to Illinois?

    Looking at all options, your cheapest flight can be booked for $360. While the most popular route (Athens Eleftherios V. - Chicago O'Hare Intl) can be booked for $463 on average, our data indicates $612 when flying from Athens to Illinois.

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

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

  • How can I find direct flights from Athens to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Athens to Illinois 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 Athens to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Athens to Illinois (average of $470). Flying from Athens to Illinois in December is currently the most expensive (average of $589). 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 Athens to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Athens to Illinois

Discover the top 9 airlines that operate flights from Athens to Illinois. 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$484Average$631FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$485Average$824FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$492Average$674FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$500Average$701FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$502Average$695FlexibilityNo cancel feeOn-time77%
IberiaCheapest$511Average$693FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$550Average$687FlexibilityNo cancel feeOn-time69%
SWISSCheapest$562Average$602FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$588Average$693FlexibilityNo cancel feeOn-time76%

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