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$360+ Cheap flights from Illinois to Athens (ATH)

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ATH
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Illinois to Athens

Keep the following information in mind while searching for Illinois to Athens flight deals. Data was last updated September 15, 2025.

Round-trip from

$478
(lastminute.com)

One-way from

$360
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$915

Good round-trip deal

$790 or less

Good one-way deal

$513 or less
From Illinois to Athens Eleftherios V.
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One-way flight from Illinois to Athens Eleftherios V.
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Highest demand for flights based on searches. 28% potential increase in price ($359 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Illinois to Athens Eleftherios V..
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Price to beat on a one-way flight from Illinois to Athens Eleftherios V..
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Find flight deals from Illinois to Athens

Cheapest flights from Illinois to Athens
Explore the most affordable flight options available from Illinois to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This lastminute.com deal was found by Cheapflights users on 9/13. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:30 amSTL - ATH
2 stops20h 40mAir Canada
Wed 11/1911:55 amATH - STL
2 stops35h 34mAir Canada
Deal found 9/13$478
This lastminute.com deal was found by Cheapflights users on 9/13. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:30 amSTL - ATH
2 stops20h 40mMultiple Airlines
Wed 11/196:15 amATH - STL
1 stop15h 40mMultiple Airlines
Deal found 9/13$488
This Scandinavian Airlines deal was found by Cheapflights users on 9/12. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:59 pmSTL - ATH
2 stops19h 41mScandinavian Airlines
Wed 11/57:30 pmATH - STL
2 stops34h 08mScandinavian Airlines
Deal found 9/12$519
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/310:44 amSTL - ATH
1 stop16h 16mAmerican Airlines
Wed 11/1912:50 pmATH - STL
1 stop36h 48mAmerican Airlines
Deal found 9/13$530
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/289:40 pmORD - ATH
1 stop12h 55mUnited Airlines
Tue 10/146:55 amATH - ORD
2 stops23h 12mUnited Airlines
Deal found 9/13$539
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/24:05 pmSTL - ATH
1 stop35h 05mUnited Airlines
Fri 11/146:05 amATH - STL
1 stop15h 50mUnited Airlines
Deal found 9/13$540
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Sun 10/53:35 pmORD - ATH
1 stop34h 30mUnited Airlines
Wed 10/1512:35 pmATH - ORD
2 stops18h 40mUnited Airlines
Deal found 9/12$540
This CheapOair deal was found by Cheapflights users on 9/12. 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.
Wed 10/111:45 pmORD - ATH
1 stop19h 20mTurkish Airlines
Sat 10/113:40 pmATH - ORD
1 stop14h 20mTurkish Airlines
Deal found 9/12$541
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Sat 10/48:25 pmORD - ATH
1 stop30h 45mUnited Airlines
Tue 10/216:00 amATH - ORD
2 stops21h 55mUnited Airlines
Deal found 9/12$542
This FlightHub deal was found by Cheapflights users on 9/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:40 pmORD - ATH
1 stop31h 20mLOT
Wed 10/222:00 pmATH - ORD
1 stop13h 40mLOT
Deal found 9/12$543
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:30 amSTL - ATH
2 stops20h 40mUnited Airlines
Fri 11/146:05 amATH - STL
1 stop15h 50mUnited Airlines
Deal found 9/13$544
This United Airlines deal was found by Cheapflights users on 9/12. 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 9/234:15 pmORD - ATH
Nonstop10h 15mUnited Airlines
Wed 10/812:35 pmATH - ORD
2 stops27h 06mUnited Airlines
Deal found 9/12$544

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Athens 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 15, 2025.
Use the filters below to find and compare flights from Illinois to Athens that are best for you.

Fly from

Illinois

Fly to

Athens

Route

Depart

Return

Price

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Mon 10/6

8:40 am-10:05 am

1 stop17h 25m

Athens Eleftherios V.

Wed 10/15

12:35 pm-11:15 pm

2 stops18h 40m

$540

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Mon 10/13

8:40 am-10:05 am

1 stop17h 25m

Athens Eleftherios V.

Thu 10/30

6:25 am-7:25 pm

2 stops20h 00m

$542

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 11/3

6:30 am-11:10 am

2 stops20h 40m

Athens Eleftherios V.

Fri 11/14

6:05 am-9:40 pm

2 stops23h 35m

$555

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sun 11/2

4:05 pm-11:10 am

1 stop35h 05m

Athens Eleftherios V.

Wed 11/12

2:20 pm-3:46 pm

2 stops33h 26m

$555

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 10/22

5:00 am-10:05 am

2 stops21h 05m

Athens Eleftherios V.

Tue 11/4

2:10 pm-1:55 pm

1 stop31h 45m

$557

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Thu 9/25

8:00 am-9:55 am

1 stop17h 55m

Athens Eleftherios V.

Thu 10/2

6:50 am-9:15 pm

2 stops22h 25m

$558

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sun 11/2

4:05 pm-11:10 am

1 stop35h 05m

Athens Eleftherios V.

Thu 11/13

2:10 pm-1:55 pm

1 stop31h 45m

$559

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Sun 10/12

3:35 pm-10:05 am

1 stop34h 30m

Athens Eleftherios V.

Mon 10/27

6:35 am-7:25 pm

1 stop19h 50m

$559

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Thu 9/25

7:00 am-8:10 am

2 stops17h 10m

Athens Eleftherios V.

Wed 10/15

1:35 pm-1:20 pm

1 stop31h 45m

$559

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 11/3

6:30 am-11:10 am

2 stops20h 40m

Athens Eleftherios V.

Thu 11/13

2:10 pm-3:46 pm

2 stops33h 36m

$560

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 52 results
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Best time to book a flight from Illinois to Athens

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

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Athens (average of $679). Flying from Illinois to Athens in June is currently the most expensive (average of $1,284). 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 ATH?

Find hourly flight availability from Illinois to Athens. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Illinois to Athens, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Illinois to Athens

Explore weekly flight availability from Illinois to Athens. 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 15, 2025.

The most flights from USIL to ATH 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).

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Athens. 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 into for flights to Athens from Illinois?

    Athens Eleftherios V. (ATH) is the airport you will fly into if you book a flight from Illinois to Athens. It is only a 12.3 mi journey from Eleftherios V. (ATH) to Athens’s city center.

  • How long is the flight from Illinois to Athens?

    There are many flights that can get you from Illinois to Athens in 17h 25m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. Airlines will cover a distance of 5446 mi. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from Illinois to Athens are Scandinavian Airlines ($369), Virgin Atlantic ($373), and SWISS ($377).

  • What are the most popular routes from Illinois to Athens?

    The most popular flight routes from Illinois to Athens are Chicago O'Hare Intl - Athens Eleftherios V., Chicago Midway - Athens Eleftherios V. and Lambert-St Louis - Athens Eleftherios V..

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

    Consider United Airlines (50%), Lufthansa (50%) or American Airlines (33%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Athens.

  • What are the cheapest flights from Illinois to Athens?

    The cheapest flight price from Illinois to Athens is $463. On average you can expect to pay $3,306. The most popular route, (Chicago O'Hare Intl - Athens Eleftherios V.), can usually be booked for $430.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Athens (average of $679). Flying from Illinois to Athens in June is currently the most expensive (average of $1,284). 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

Traveling to a place near Athens?

Book flights to Athens if you plan to visit one of these locations
Glyfada
Piraeus
Tolo
Galaxidi

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Alternative routes for Illinois to Athens

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Top 10 airlines flying from Illinois to Athens

Discover the top 10 airlines that operate flights from Illinois to Athens. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$393Average$699FlexibilityNo cancel feeOn-time77%
Air SerbiaCheapest$424Average$954FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$449Average$776FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$463Average$524FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$480Average$1,058FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$484Average$779FlexibilityNo cancel feeOn-time72%
KLMCheapest$491Average$857FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$509Average$630FlexibilityNo cancel feeOn-time77%
LOTCheapest$529Average$826FlexibilityNo cancel feeOn-time81%
SWISSCheapest$581Average$1,050FlexibilityNo cancel feeOn-time79%

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