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$249+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ATH
Jan 26 — Feb 21
Mon 1/26
Mon 2/2
1 adult, Economy
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Cheap 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 December 27, 2025.

This CrystalTravel deal was found by Cheapflights users on 12/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:05 pmORD - ATH
2 stops19h 30mSWISS
Tue 1/137:05 amATH - ORD
1 stop17h 15mSWISS
Deal found 12/25$570
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:55 pmORD - ATH
1 stop13h 20mMultiple Airlines
Mon 1/125:40 pmATH - ORD
1 stop30h 40mMultiple Airlines
Deal found 12/26$578
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:50 pmORD - ATH
1 stop21h 45mSWISS
Mon 1/125:40 pmATH - ORD
2 stops28h 30mSWISS
Deal found 12/26$583
This KLM deal was found by Cheapflights users on 12/25. 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.
Tue 12/3012:55 pmORD - ATH
1 stop13h 00mKLM
Tue 1/135:25 pmATH - ORD
1 stop28h 55mKLM
Deal found 12/25$586
This Delta 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 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
Fri 1/166:05 amATH - ORD
1 stop16h 15mDelta
Deal found 12/26$597
This Kiwi.com deal was found by Cheapflights users on 12/25. 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.
Thu 12/259:05 pmORD - ATH
2 stops19h 30mSWISS
Wed 1/215:40 pmATH - ORD
1 stop27h 05mSWISS
Deal found 12/25$599
This Cheapflightsfares deal was found by Cheapflights users on 12/25. 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.
Wed 12/319:50 pmORD - ATH
1 stop19h 50mLufthansa
Sun 2/16:15 amATH - ORD
1 stop15h 10mLufthansa
Deal found 12/25$604
This Kiwi.com deal was found by Cheapflights users on 12/25. 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.
Thu 12/2510:35 pmORD - ATH
1 stop17h 55mLufthansa
Wed 1/216:15 amATH - ORD
1 stop17h 05mLufthansa
Deal found 12/25$605
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:50 pmORD - ATH
1 stop21h 45mSWISS
Sat 2/77:05 amATH - ORD
1 stop17h 15mSWISS
Deal found 12/26$610
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:50 amMDW - ATH
2 stops19h 45mDelta
Thu 1/86:05 amATH - MDW
2 stops24h 02mDelta
Deal found 12/26$1,183
This Cheapflightsfares deal was found by Cheapflights users on 12/24. 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.
Sun 12/283:50 pmSTL - ATH
1 stop12h 30mLufthansa
Tue 12/306:35 amATH - STL
2 stops23h 08mLufthansa
Deal found 12/24$1,521
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:48 amMDW - ATH
2 stops17h 47mMultiple Airlines
Thu 1/226:05 amATH - MDW
2 stops19h 50mMultiple Airlines
Deal found 12/26$1,570

Find flight deals from Illinois to Athens

Keep the following information in mind while searching for Illinois to Athens flight deals. Data was last updated December 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$479
(FlightHub)

One-way from

$249
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$835

Good round-trip deal

$1,058 or less

Good one-way deal

$737 or less
Provider with most accurate pricing for Chicago (CHI)-Athens Eleftherios V. flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Athens Eleftherios V. flights.
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From Illinois to Athens Eleftherios V.
Search Deals
One-way flight from Illinois to Athens Eleftherios V.
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($384 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 December 2025
Search Deals
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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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 December 27, 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

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 2/13

2:00 pm-9:55 pm

2 stops23h 55m

Athens Eleftherios V.

Thu 2/26

7:30 am-11:28 pm

2 stops23h 58m

$491

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 2/28

10:04 am-6:50 pm

2 stops24h 46m

Athens Eleftherios V.

Sun 3/8

7:50 pm-11:52 pm

2 stops35h 02m

$491

PeoriaAthens

PIA - ATH

PIAATH

Greater Peoria

Tue 3/10

6:50 pm-1:20 am

2 stops23h 30m

Athens Eleftherios V.

Mon 3/23

8:10 pm-11:27 pm

2 stops34h 17m

$491

PeoriaAthens

PIA - ATH

PIAATH

Greater Peoria

Wed 2/4

5:18 pm-1:40 am

2 stops24h 22m

Athens Eleftherios V.

Sun 2/8

6:15 am-12:38 pm

2 stops38h 23m

$502

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 1/30

3:50 pm-4:35 pm

1 stop16h 45m

Athens Eleftherios V.

Tue 2/3

6:25 am-2:30 pm

2 stops40h 05m

$510

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 2/10

8:30 am-12:00 pm

2 stops19h 30m

Athens Eleftherios V.

Tue 2/17

1:25 pm-10:59 pm

2 stops41h 34m

$517

ChicagoAthens

MDW - ATH

MDWATH

Chicago Midway

Mon 3/23

12:47 pm-9:55 am

1 stop14h 08m

Athens Eleftherios V.

Wed 4/1

9:10 am-10:31 pm

1 stop21h 21m

$588

ChicagoAthens

MDW - ATH

MDWATH

Chicago Midway

Sun 3/1

12:45 pm-1:35 pm

2 stops16h 50m

Athens Eleftherios V.

Wed 4/1

9:10 am-10:31 pm

1 stop21h 21m

$593

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Sun 3/22

10:00 am-4:35 pm

2 stops23h 35m

Athens Eleftherios V.

Tue 3/31

6:45 am-2:55 pm

2 stops16h 10m

$599

ChicagoAthens

MDW - ATH

MDWATH

Chicago Midway

Mon 3/23

2:05 pm-1:35 pm

2 stops16h 30m

Athens Eleftherios V.

Wed 4/1

6:00 am-4:55 pm

2 stops18h 55m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 56 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 $454). Flying from Illinois to Athens in June is currently the most expensive (average of $695). 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 December 27, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 22% on flights from Illinois to Athens by exploring options for tickets in the evening.

What is the cheapest day to fly from Illinois to Athens?

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

Travelers seeking maximum savings on their Illinois to Athens flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday afternoons 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 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 14h 08m. Fly via British Airways, United Airlines, or KLM to get the fastest option. Airlines will cover a distance of 5448 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 Air Serbia ($208), Scandinavian Airlines ($293), and Turkish Airlines ($307).

  • 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 American Airlines (67%), Alaska Airlines (67%) or Finnair (67%) 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 $623. On average you can expect to pay $3,387. The most popular route, (Chicago O'Hare Intl - Athens Eleftherios V.), can usually be booked for $478.

  • 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 $454). Flying from Illinois to Athens in June is currently the most expensive (average of $695). 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 December 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$407Average$725FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$424Average$779FlexibilityNo cancel feeOn-time72%
DeltaCheapest$439Average$734FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$454Average$513FlexibilityNo cancel feeOn-time77%
Air SerbiaCheapest$470Average$820FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$480Average$1,098FlexibilityNo cancel feeOn-time67%
KLMCheapest$491Average$796FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$504Average$663FlexibilityNo cancel feeOn-time77%
LOTCheapest$520Average$807FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$537Average$963FlexibilityNo cancel feeOn-time76%

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